CN105671058B - 编码甘薯erf转录因子的基因及应用 - Google Patents
编码甘薯erf转录因子的基因及应用 Download PDFInfo
- Publication number
- CN105671058B CN105671058B CN201610174158.XA CN201610174158A CN105671058B CN 105671058 B CN105671058 B CN 105671058B CN 201610174158 A CN201610174158 A CN 201610174158A CN 105671058 B CN105671058 B CN 105671058B
- Authority
- CN
- China
- Prior art keywords
- gene
- plant
- sweet potato
- seq
- erf transcription
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 108090000623 proteins and genes Proteins 0.000 title claims abstract description 51
- 244000017020 Ipomoea batatas Species 0.000 title claims abstract description 25
- 235000002678 Ipomoea batatas Nutrition 0.000 title claims abstract description 25
- 230000035897 transcription Effects 0.000 title claims 2
- 238000013518 transcription Methods 0.000 title claims 2
- 241000196324 Embryophyta Species 0.000 claims abstract description 42
- 239000013604 expression vector Substances 0.000 claims abstract description 12
- 102000004169 proteins and genes Human genes 0.000 claims abstract description 12
- 241000589158 Agrobacterium Species 0.000 claims abstract description 7
- 239000002773 nucleotide Substances 0.000 claims abstract description 5
- 125000003729 nucleotide group Chemical group 0.000 claims abstract description 5
- 241000219194 Arabidopsis Species 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 10
- GOJUJUVQIVIZAV-UHFFFAOYSA-N 2-amino-4,6-dichloropyrimidine-5-carbaldehyde Chemical group NC1=NC(Cl)=C(C=O)C(Cl)=N1 GOJUJUVQIVIZAV-UHFFFAOYSA-N 0.000 claims 1
- 230000009261 transgenic effect Effects 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 11
- 239000002299 complementary DNA Substances 0.000 abstract description 6
- 239000002028 Biomass Substances 0.000 abstract description 5
- 208000015181 infectious disease Diseases 0.000 abstract description 4
- 230000002068 genetic effect Effects 0.000 abstract description 3
- 230000024346 drought recovery Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 abstract description 2
- 125000003275 alpha amino acid group Chemical group 0.000 abstract 1
- 230000010496 root system development Effects 0.000 abstract 1
- 230000014509 gene expression Effects 0.000 description 12
- 239000002609 medium Substances 0.000 description 11
- 230000035882 stress Effects 0.000 description 10
- 239000013598 vector Substances 0.000 description 9
- 241000219195 Arabidopsis thaliana Species 0.000 description 8
- 101150033839 4 gene Proteins 0.000 description 7
- 230000002018 overexpression Effects 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 108091023040 Transcription factor Proteins 0.000 description 6
- 230000021749 root development Effects 0.000 description 6
- 102000040945 Transcription factor Human genes 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 5
- 239000002689 soil Substances 0.000 description 5
- YQYJSBFKSSDGFO-UHFFFAOYSA-N Epihygromycin Natural products OC1C(O)C(C(=O)C)OC1OC(C(=C1)O)=CC=C1C=C(C)C(=O)NC1C(O)C(O)C2OCOC2C1O YQYJSBFKSSDGFO-UHFFFAOYSA-N 0.000 description 4
- 240000007594 Oryza sativa Species 0.000 description 4
- 235000007164 Oryza sativa Nutrition 0.000 description 4
- 150000001413 amino acids Chemical class 0.000 description 4
- 230000008641 drought stress Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000013612 plasmid Substances 0.000 description 4
- 240000006365 Vitis vinifera Species 0.000 description 3
- 235000014787 Vitis vinifera Nutrition 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000010367 cloning Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 108010032090 ethylene-responsive element binding protein Proteins 0.000 description 3
- 235000013305 food Nutrition 0.000 description 3
- 239000012634 fragment Substances 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 235000015097 nutrients Nutrition 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 235000009566 rice Nutrition 0.000 description 3
- 238000012163 sequencing technique Methods 0.000 description 3
- JLIDBLDQVAYHNE-YKALOCIXSA-N (+)-Abscisic acid Chemical compound OC(=O)/C=C(/C)\C=C\[C@@]1(O)C(C)=CC(=O)CC1(C)C JLIDBLDQVAYHNE-YKALOCIXSA-N 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 2
- 240000007154 Coffea arabica Species 0.000 description 2
- 108020004414 DNA Proteins 0.000 description 2
- 108091061403 ERF family Proteins 0.000 description 2
- 244000068988 Glycine max Species 0.000 description 2
- 235000010469 Glycine max Nutrition 0.000 description 2
- 206010061217 Infestation Diseases 0.000 description 2
- 108700005075 Regulator Genes Proteins 0.000 description 2
- 240000003768 Solanum lycopersicum Species 0.000 description 2
- 244000061456 Solanum tuberosum Species 0.000 description 2
- 235000002595 Solanum tuberosum Nutrition 0.000 description 2
- 108090000704 Tubulin Proteins 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000010353 genetic engineering Methods 0.000 description 2
- 230000012010 growth Effects 0.000 description 2
- ZNJFBWYDHIGLCU-HWKXXFMVSA-N jasmonic acid Chemical compound CC\C=C/C[C@@H]1[C@@H](CC(O)=O)CCC1=O ZNJFBWYDHIGLCU-HWKXXFMVSA-N 0.000 description 2
- 229930027917 kanamycin Natural products 0.000 description 2
- SBUJHOSQTJFQJX-NOAMYHISSA-N kanamycin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CN)O[C@@H]1O[C@H]1[C@H](O)[C@@H](O[C@@H]2[C@@H]([C@@H](N)[C@H](O)[C@@H](CO)O2)O)[C@H](N)C[C@@H]1N SBUJHOSQTJFQJX-NOAMYHISSA-N 0.000 description 2
- 229960000318 kanamycin Drugs 0.000 description 2
- 229930182823 kanamycin A Natural products 0.000 description 2
- 238000010839 reverse transcription Methods 0.000 description 2
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 230000019491 signal transduction Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 229910052902 vermiculite Inorganic materials 0.000 description 2
- 235000019354 vermiculite Nutrition 0.000 description 2
- 239000010455 vermiculite Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OPIFSICVWOWJMJ-AEOCFKNESA-N 5-bromo-4-chloro-3-indolyl beta-D-galactoside Chemical compound O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@H]1OC1=CNC2=CC=C(Br)C(Cl)=C12 OPIFSICVWOWJMJ-AEOCFKNESA-N 0.000 description 1
- 102100028220 ABI gene family member 3 Human genes 0.000 description 1
- 235000007460 Coffea arabica Nutrition 0.000 description 1
- 102000016928 DNA-directed DNA polymerase Human genes 0.000 description 1
- 108010014303 DNA-directed DNA polymerase Proteins 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 101000724234 Homo sapiens ABI gene family member 3 Proteins 0.000 description 1
- 239000006142 Luria-Bertani Agar Substances 0.000 description 1
- 235000007688 Lycopersicon esculentum Nutrition 0.000 description 1
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 241000208138 Nicotiana tomentosiformis Species 0.000 description 1
- 238000012408 PCR amplification Methods 0.000 description 1
- 229920002594 Polyethylene Glycol 8000 Polymers 0.000 description 1
- 108091061402 RAV family Proteins 0.000 description 1
- 235000002560 Solanum lycopersicum Nutrition 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 102000004243 Tubulin Human genes 0.000 description 1
- 235000009754 Vitis X bourquina Nutrition 0.000 description 1
- 235000012333 Vitis X labruscana Nutrition 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000036579 abiotic stress Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000000246 agarose gel electrophoresis Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 125000000539 amino acid group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 230000004790 biotic stress Effects 0.000 description 1
- 238000000546 chi-square test Methods 0.000 description 1
- 238000002856 computational phylogenetic analysis Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- FCRACOPGPMPSHN-UHFFFAOYSA-N desoxyabscisic acid Natural products OC(=O)C=C(C)C=CC1C(C)=CC(=O)CC1(C)C FCRACOPGPMPSHN-UHFFFAOYSA-N 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000006342 environmental stress response Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000008124 floral development Effects 0.000 description 1
- 235000021393 food security Nutrition 0.000 description 1
- 230000005078 fruit development Effects 0.000 description 1
- 235000002532 grape seed extract Nutrition 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000012165 high-throughput sequencing Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- BPHPUYQFMNQIOC-NXRLNHOXSA-N isopropyl beta-D-thiogalactopyranoside Chemical compound CC(C)S[C@@H]1O[C@H](CO)[C@H](O)[C@H](O)[C@H]1O BPHPUYQFMNQIOC-NXRLNHOXSA-N 0.000 description 1
- ZNJFBWYDHIGLCU-UHFFFAOYSA-N jasmonic acid Natural products CCC=CCC1C(CC(O)=O)CCC1=O ZNJFBWYDHIGLCU-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 238000003753 real-time PCR Methods 0.000 description 1
- 230000003938 response to stress Effects 0.000 description 1
- JQXXHWHPUNPDRT-WLSIYKJHSA-N rifampicin Chemical compound O([C@](C1=O)(C)O/C=C/[C@@H]([C@H]([C@@H](OC(C)=O)[C@H](C)[C@H](O)[C@H](C)[C@@H](O)[C@@H](C)\C=C\C=C(C)/C(=O)NC=2C(O)=C3C([O-])=C4C)C)OC)C4=C1C3=C(O)C=2\C=N\N1CC[NH+](C)CC1 JQXXHWHPUNPDRT-WLSIYKJHSA-N 0.000 description 1
- 229960001225 rifampicin Drugs 0.000 description 1
- 229960004889 salicylic acid Drugs 0.000 description 1
- 230000008117 seed development Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 108700026220 vif Genes Proteins 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/415—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from plants
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/63—Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
- C12N15/79—Vectors or expression systems specially adapted for eukaryotic hosts
- C12N15/82—Vectors or expression systems specially adapted for eukaryotic hosts for plant cells, e.g. plant artificial chromosomes (PACs)
- C12N15/8241—Phenotypically and genetically modified plants via recombinant DNA technology
- C12N15/8261—Phenotypically and genetically modified plants via recombinant DNA technology with agronomic (input) traits, e.g. crop yield
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/63—Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
- C12N15/79—Vectors or expression systems specially adapted for eukaryotic hosts
- C12N15/82—Vectors or expression systems specially adapted for eukaryotic hosts for plant cells, e.g. plant artificial chromosomes (PACs)
- C12N15/8241—Phenotypically and genetically modified plants via recombinant DNA technology
- C12N15/8261—Phenotypically and genetically modified plants via recombinant DNA technology with agronomic (input) traits, e.g. crop yield
- C12N15/8271—Phenotypically and genetically modified plants via recombinant DNA technology with agronomic (input) traits, e.g. crop yield for stress resistance, e.g. heavy metal resistance
- C12N15/8273—Phenotypically and genetically modified plants via recombinant DNA technology with agronomic (input) traits, e.g. crop yield for stress resistance, e.g. heavy metal resistance for drought, cold, salt resistance
Landscapes
- Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Molecular Biology (AREA)
- General Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- Biotechnology (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Plant Pathology (AREA)
- Microbiology (AREA)
- Cell Biology (AREA)
- Gastroenterology & Hepatology (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Botany (AREA)
- Medicinal Chemistry (AREA)
- Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
本发明公开了编码甘薯ERF转录因子的基因,是SEQ ID NO.1所示的核苷酸序列。该基因编码的蛋白质是SEQ ID No.2所示的氨基酸序列。本发明从甘薯中分离出编码ERF转录因子的完整cDNA,连接到植物表达载体上,利用农杆菌侵染法转化植物,获得转基因植株,转基因植株在根系发育变强,生物量变大,并且提高了转基因植物的耐旱性,此基因还可以应用于植物遗传改良。
Description
技术领域
本发明属于基因工程领域,具体涉及一种编码甘薯ERF转录因子的基因,该基因编码的蛋白质以及含有该基因的重组载体及基因的应用。
背景技术
在植物中许多基因都受逆境胁迫诱导表达,根据作用方式的不同,主要分为两大类:调节基因和功能基因。调节基因主要是在信号转导和基因表达中起调节作用的转录因子;功能基因主要编码一些调节渗透势、清除自由基和活性氧的酶等。一般认为,植物对干旱和高盐等逆境的抗性受多基因控制,因此,利用基因工程技术导入单个功能基因虽然能增加植物的某种单一抗性,但并不能从整体上综合提高植物的抗逆性。转录因子作为功能基因表达的调节开关,可以对不同的基因进行精确的调节,在植物逆境信号传递过程中发挥着关键的作用,所以通过增强某个转录因子的作用,可促使多个与抗逆有关的功能基因表达,这是使植物抗逆性状获得综合改良的一条非常有效的途径。
植物AP2/ERF是一个庞大的转录因子基因家族,含有由60~70个氨基酸组成的AP2/ERF结构域而得名,存在于所有的植物中。AP2/ERF转录因子参与多种生物学过程,包括植物生长、花发育、果实发育、种子发育、损伤、病菌防御、高盐、干旱等环境胁迫响应等。AP2/ERF类转录因子参与水杨酸、茉莉酸、乙烯、脱落酸等多种信号转导途径,而且是逆境信号交叉途径中的连接因子。根据含AP2/ERF结构域的数目,AP2/ERF转录因子含5个亚组,包括AP2(APETALA 2)、RAV(related to ABI3/VP1)、DREB(dehydration-responsive elementbinding protein)、ERF和其他。AP2家族含2个AP2/EREBP(ethylene-responsive elementbinding protein)结构域,ERF和DREB家族仅含1个AP2/EREBP结构域,而RAV家族除一个AP2/EREBP结构域外还含1个B3结构域。ERF家族是AP2/ERF转录因子大家族的一个主要亚家族,在调节植物生物和非生物逆境反应中发挥重要作用。在拟南芥和水稻基因组中分别含有122和139个ERF转录因子家族成员,根据基因序列系统树和蛋白保守结构域等特征,拟南芥和水稻ERF基因分别组成12和15个不同的组。
甘薯不仅是重要的粮食作物,而且还是重要的经济作物和能源作物。甘薯广泛种植在世界上的100多个国家,我国是世界上的最大生产国,甘薯生产约占世界甘薯的80%。与其他粮食作物相比,甘薯相对较为耐旱,但品种间差异较大,世界上相当比例的甘薯种植在干旱的环境下,而世界干旱、半干旱地区已占陆地面积的三分之一以上,干旱对植物的影响在诸多自然逆境因素中居首位。我国现有边际性土地资源(非耕地)约20亿亩,主要是干旱、盐碱滩涂地。在我国农业用水紧缺、耕地面积紧张的形势下,在这些地区开发种植耐旱甘薯,既能合理的利用土地资源,又能部分缓解粮食和能源紧缺问题。通过定向改良甘薯的抗逆境能力,提高甘薯在边际性土地区的生长适应性,对确保我国的粮食安全具有重要的战略意义。因此在甘薯中克隆新的ERF类转录因子基因,研究其基本的生物学特性和功能,可为整个植物抗逆基因调控网络及胁迫应答反应机理提供理论基础,并为改良作物抗逆性提供一定的物质基础。
发明内容
本发明的目的之一在于提供一种编码甘薯ERF转录因子的基因,该基因命名为IbRAP2.4。
本发明的第二个目的是提供一种该基因编码的蛋白质。
本发明的第三个目的是提供一种含有该基因的表达载体。
本发明的第四个目的是提供一种含有该表达载体的宿主细胞。
本发明的最后一个目的在于提供该基因的用途。
本发明的技术方案概述如下:
一种编码甘薯ERF转录因子的IbRAP2.4基因,它是SEQ ID NO.1所示的核苷酸序列。所述的核苷酸序列由885个碱基组成。
所述IbRAP2.4基因具有调控植物根系发育,增强生物量以及抗旱性的功能。
上述基因编码的蛋白质,它是SEQ ID No.2所示的氨基酸序列。所述的序列由294个氨基酸残基组成。
一种含有上述基因的表达载体pCAMBIA1305-IbRAP2.4,它含有SEQ ID NO.1所示的核苷酸序列。
一种含有上述表达载体农杆菌宿主细胞EHA105:pCAMBIA1305-2×35s-IbRAP2.4的构建。
上述基因在转化植物获得转基因植株中的应用,尤其是在制备转基因拟南芥中的应用。本发明的优点:
本发明从甘薯中分离出编码ERF转录因子基因的完整cDNA,连接到植物表达载体上,利用农杆菌侵染法转化植物,获得转基因植株,对转基因植株进行了抗逆性分析,结果表明IbRAP2.4基因能够增强植物的根系发育和生物量,并且响应逆境信号,正向调控植物的耐旱能力。此基因可以应用于植物遗传改良。
附图说明
图1.IbRAP2.4氨基酸序列的系统进化树分析结果
图2.IbRAP2.4在甘薯不同组织中的表达
图3.干旱胁迫诱导表达后IbRAP2.4的表达
图4.pCAMBIA1305-2×35s-IbRAP2.4载体示意图
图5.过表达IbRAP2.4基因对拟南芥植株叶片大写、生物量的影响
图6.过表达IbRAP2.4基因对拟南芥根发育的影响
图7.未转化的野生型拟南芥株系和转IbRAP2.4基因株系的根系比较
图8.未转化的野生型拟南芥株系和转IbRAP2.4基因株系的抗旱性比较
具体实施方式
下面结合具体实施例来进一步描述本发明,本发明的优点和特点将会随着描述而更为清楚。但下述实施例中所涉及的具体实验方法如无特殊说明,均为常规方法或按照制造厂商说明书建议的条件实施。
实施例1
甘薯中ERF转录因子IbRAP2.4基因序列获得,具体如下:
利用OMEGA RNA试剂盒,从100mg的新鲜的甘薯叶片中提取总RNA,利用反转录试剂盒(Bioteke)合成cDNA。
具体反应体系如下:
在PCR仪上按以下条件进行反转录反应:1、50℃,45min;2、70℃,10min;之后冰上冷却。
将提取的总RNA送华大基因(Beijing Genomic Institute,BGI),通过高通量测序获得甘薯转录组数据库,并通过De novo拼接获得甘薯Unigene数据库,其中Unigene23081与NR数据库比对后发现该基因可能参与逆境响应。将Unigene23081通过OFR FINDER(http://www.ncbi.nlm.nih.gov/projects/gorf/)在线软件预测基因完成的ORF,并利用Primer Premier 5设计扩增完整ORF引物:
IbRAP2.4(F):5'ATGACCCGCCCGAACCT 3'
IbRAP2.4(R):5'CTTTGATCCCTTTCTGCAAATC 3'
利用TAKARA公司Primerstar GXL DNA聚合酶进行扩增,具体步骤如下:
反应条件如下:94℃,4min;98℃,10Sec;55℃,15Sec;68℃,l.5min;72℃,10min;30个循环。使用OMEGA DNA纯化试剂盒将PCR产物纯化,纯化后的PCR产物与pEASY-Blunt载体连接(本过程使用TransGEN的pEASY-Blunt Vector Cloning Kit试剂盒),反应体系如下:IbRAP2.4基因的cDNA片段4ul,pEASY-Blunt载体1μL。反应条件:20-30℃,30min。连接产物转化E-Coli.DH5α感受态,涂布在含有40ul 25mg/ml的X-Gal、16ul 50mg/ml的IPTG、100mg/mL Amp的LB琼脂平板培养基上培养,形成单菌落。挑选白色菌落,使用菌落PCR法确认pEASY-Blunt载体中插入片段的长度大小,与预期一致。送南京金斯瑞生物科技公司测序获得基因序列SEQ ID NO.1。
实施例2
IbRAP2.4蛋白序列同源分析,具体如下:
测序获得cDNA全长907bp,ORF为684bp,编码227个氨基酸SEQ ID NO.2,将翻译获得蛋白序列与NCBI蛋白数据进行比对(http://blast.ncbi.nlm.nih.gov/Blast.cgi),获得了与IbRAP2.4蛋白序列相似的植物种属同源基因。在多重比较分析的基础上,建立了各同源植物种属基因的系统进化树,详见图1。包括烟草(Nicotiana tomentosiformis),土豆(Solanum tuberosum),蕃茄(Solanum lycopersicum),水稻(Oryza sativa),葡萄(Vitisvinifera),大豆(Glycine max)咖啡(Coffea arabica),拟南芥(Arabidopsis thaliana)。利用MEGA 5.1软件进行系统进化树的构建,得到IbRAP2.4亲缘关系与拟南芥和葡萄亲缘关系较近。
实施例3
IbRAP2.4在甘薯中的不同组织中经过干旱胁迫后的表达(如图2、图3所示),具体如下:
剪取三个月时期的宁紫1号的不同组织样品,叶片(L)、茎(S)、柴根(FR)、粗色素根(PR)和储藏根(SR),用于分析IbRAP2.4的组成性表达。剪取宁紫1号25cm的苗,并保留3张完全展开叶,放入1/2Hogland营养液中25℃培养15天,用20%PEG8000处理3h、6h、12h、24h、48h,取3个重复,液氮速冻后存于-80℃冰箱中。提取RNA并反转成cDNA,方法如实施例1所述。采用是TOYOBO公司的荧光定量试剂盒。反应在定量PCR仪(Applied Biosystemsstepone plus)上进行,按照相对定量的方法检测基因的表达量,反应程序按照TOYOBO提供的操作手册进行,甘薯Tubulin基因作为反应中的内参,Tubulin引物序列:
F,CAACTACCAGCCACCAACTGT,R,CAAGATCCTCACGAGCTTCAC;IbRAP2.4定量引物:
F,CGTCACCGTCGCCTTCTTTGT,R,GCGTGGAGCCCATCATTTGTT;
结果发现该基因在粗色素根中表达最高(图2),并且干旱胁迫后该基因的表达受抑制(图3)。
实施例4
双元植物表达载体pCAMBIA1305-2×35s-IbRAP2.4的构建,具体如下:
pCAMBIA1305-2×35s-IbRAP2.4载体示意图如图4所示,首先以pEASY-Blunt-IbRAP2.4质粒为模板,采用引物
IbRAP2.4-PstI(F):5'aaCTGCAG ATGGCTGCCACTATTGAT3'
IbRAP2.4-BamHI(R):5'ccGGATCCTTATGACCCGCCCGAACCTG 3'
在IbRAP2.4前后分别引入酶切位点PstI和BamHI,其反应体系和条件如实施例1中所述。然后PCR产物和pCAMBIA1305空载体质粒分别用BamHI和PstI双酶切,将二者的酶切产物连接,连接体系如下:
连接产物转化E-Coli.DH5α,涂布于含100mg/ml浓度卡纳霉素抗性的LB平板上。37℃培养,12h后挑取单菌落进行菌落PCR验证,将菌落PCR验证阳性的菌,摇菌提取质粒,酶切鉴定得到目的条带,最后送华大基因测序公司测序,结果表明载体pCAMBIA1305-2×35s-IbRAP2.4构建正确。
实施例5
用于植物转基因的农杆菌菌种EHA105:pCAMBIA1305-2×35s-IbRAP2.4的构建,具体如下:
本发明使用的农杆菌菌株为EHA105。采用的是液氮冻融法将构建好的表达载体转入农杆菌。具体过程为:1)冰浴融化EHA105感受态细胞,加入至少100ng回收纯化的表达载体质粒,轻轻混匀,冰浴20~30min;2)液氮速冻5min,37℃热击5min,迅速置于冰上1~2min;3)加入800μL无抗生素的LB培养基,28℃,200rpm复苏3.5h;4)4000rpm离心3min,吸掉培养基;5)混匀剩余菌液,涂抹于添加100mg/ml卡纳霉素和100mg/ml利福平的固体LB培基上;6)28℃倒置培养30~48h;7)PCR检测阳性克隆,4℃保存备用。
实施例6
IbRAP2.4转化Col野生型拟南芥,具体如下:
将实施例5中阳性克隆接种到50mlYEP(含100μg/ml Rif、100μg/ml Kan)液体培养基中,28℃180rpm继续培养至OD600=0.8。4000rpm离心10min,弃培养基,收集菌体。用拟南芥渗入缓冲液将菌体稀释OD600=0.6,制备成拟南芥侵染液。当拟南芥抽苔4-5cm时即可准备侵染,侵染的前3d去除其顶生花序,以利用腋生花序的生长。待长出腋生花序后,其下部的花开始授粉时即可进行转化。转化前大量浇水,并将已授粉的花蕾及荚果摘除。共配制50ml拟南芥侵染液(5%蔗糖,0.05%SilwetL-77),倒入培养皿,将拟南芥的花序浸入其中30s,注意莲座叶不要沾染到菌液。取出植株,横放在托盘中,暗处理24h。之后直立放置方盘正常光照培养。待果荚成熟时收获T0代种子。
将T0代种子播种前在4℃冰箱春化3d,0.5%NaClO表面消毒后,播种于1/2MS固体培养基上(大量元素、微量元素减半,含20mg/L潮霉素)培养。7~14d后挑选转化体,具有潮霉素抗性的转化植株体能在含有潮霉素培养基上生长,根明显伸长,而非转化体渐渐黄化死亡。待植株长出4-5片叶子时,提取叶片DNA进行PCR鉴定,引物及PCR程序同实施例1中的IbRAP2.4基因中间片断的克隆。1%琼脂糖凝胶电泳检测PCR产物。过PCR扩增能够得到目的片断的为拟南芥阳性转化体,将其继续培养待果荚成熟收获T1代种子。将PCR鉴定为阳性的植株所收获的T1代种子继续播种,同样经过潮霉素抗性筛选,统计其性状分离比。经卡方检验符合孟德尔遗传定律中3:1分离比。将部分抗性苗移植入土壤中,收获T2代纯合的转基因种子。
(1)对转IbRAP2.4基因拟南芥的表型进行鉴定
取IbRAP2.4过表达拟南芥株系(OV-1,OV-2)和未转化的野生型(WT)植株点播于1/2MS培养基上培养一周,将苗移植到含有蛭石和营养土2:1(v/v)混合均匀后装至大小一致的塑料培养钵中,一个月后观察表型。结果表明,在拟南芥中过表达IbRAP2.4可以调控植株的叶片大小、生物量(图5)以及根的发育(图6)。
(2)对转IbRAP2.4基因拟南芥的根系发育进行鉴定
取IbRAP2.4过表达拟南芥株系(OV-1,OV-2)和未转化的野生型(WT)植株点播于1/2MS培养基上生长,分别于2周,3周时观察表型(图7)。转基因系的根系数量明显多于野生型。因此IbRAP2.4可以正向调控植株的根系发育。
(3)对转IbRAP2.4基因拟南芥抗旱性进行鉴定
取IbRAP2.4过表达拟南芥株系(OV-1,OV-2)和未转化的野生型(WT)植株点播于1/2MS培养基上培养一周,将苗移植到含有蛭石和营养土2:1(v/v)混合均匀后装至大小一致的塑料培养钵中并称重保持各钵内培养土重量一致,钵面水平并面积大小一致。4周后停止浇水进行干旱胁迫,一周以后观察表型,随后复水一天观察表型(图8)。从图中可以看出,在拟南芥中过表达IbRAP2.4可以正向调控拟南芥对干旱的响应。
Claims (6)
1.一种编码甘薯ERF转录因子的基因,其特征在于,所述基因是SEQ ID NO.1所示的核苷酸序列。
2.权利要求1所述基因编码的蛋白质,其特征在于,所述蛋白质是SEQ ID No.2所示的氨基酸序列。
3.一种含有权利要求1所述基因的表达载体pCAMBIA1305-2×35s-IbRAP2.4。
4.一种含有权利要求3所述表达载体的农杆菌宿主细胞EHA105:pCAMBIA1305-2×35s-IbRAP2.4。
5.权利要求3所述的表达载体在转化植物获得转基因植株中的应用。
6.根据权利要求5所述的应用,其特征在于,所述的植物为拟南芥。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610174158.XA CN105671058B (zh) | 2016-03-24 | 2016-03-24 | 编码甘薯erf转录因子的基因及应用 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610174158.XA CN105671058B (zh) | 2016-03-24 | 2016-03-24 | 编码甘薯erf转录因子的基因及应用 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN105671058A CN105671058A (zh) | 2016-06-15 |
CN105671058B true CN105671058B (zh) | 2018-09-21 |
Family
ID=56215378
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201610174158.XA Expired - Fee Related CN105671058B (zh) | 2016-03-24 | 2016-03-24 | 编码甘薯erf转录因子的基因及应用 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN105671058B (zh) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106222182B (zh) * | 2016-08-11 | 2018-11-02 | 江苏省农业科学院 | 编码甘薯ERF转录因子的IbERF5基因及应用 |
CN112080508B (zh) * | 2020-09-16 | 2021-09-14 | 山东省农业科学院作物研究所 | 甘薯根系发育基因IbLRR1及其应用 |
CN114395566B (zh) * | 2022-03-28 | 2022-05-24 | 江苏省农业科学院 | 甘薯ERF转录因子IbERF4在促进植物绿原酸类物质合成中的用途 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104293802A (zh) * | 2013-09-23 | 2015-01-21 | 中国农业科学院生物技术研究所 | 百脉根erf类转录因子、其编码基因及表达载体和应用 |
CN104862320A (zh) * | 2015-04-28 | 2015-08-26 | 江苏省农业科学院 | 一种编码甘薯ERF转录因子的IbERF4基因及应用 |
CN105175522A (zh) * | 2015-10-26 | 2015-12-23 | 深圳市铁汉生态环境股份有限公司 | 百脉根ap2/erf转录因子及其编码基因和应用 |
CN105254726A (zh) * | 2015-10-26 | 2016-01-20 | 中国农业科学院生物技术研究所 | 与植物抗逆相关的erf类转录因子及其编码基因和应用 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011048009A1 (en) * | 2009-10-22 | 2011-04-28 | Basf Plant Science Company Gmbh | Plants having enhanced yield-related traits and a method for making the same |
-
2016
- 2016-03-24 CN CN201610174158.XA patent/CN105671058B/zh not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104293802A (zh) * | 2013-09-23 | 2015-01-21 | 中国农业科学院生物技术研究所 | 百脉根erf类转录因子、其编码基因及表达载体和应用 |
CN104862320A (zh) * | 2015-04-28 | 2015-08-26 | 江苏省农业科学院 | 一种编码甘薯ERF转录因子的IbERF4基因及应用 |
CN105175522A (zh) * | 2015-10-26 | 2015-12-23 | 深圳市铁汉生态环境股份有限公司 | 百脉根ap2/erf转录因子及其编码基因和应用 |
CN105254726A (zh) * | 2015-10-26 | 2016-01-20 | 中国农业科学院生物技术研究所 | 与植物抗逆相关的erf类转录因子及其编码基因和应用 |
Non-Patent Citations (1)
Title |
---|
甘薯抗逆相关基因IbERF3的克隆与表达分析;边小峰等;《华北农学报》;20150115;第29卷(第6期);第16-20页 * |
Also Published As
Publication number | Publication date |
---|---|
CN105671058A (zh) | 2016-06-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN105255915B (zh) | 拟南芥AtGDSL基因在油菜抗菌核病及促进种子萌发中的应用 | |
CN105254726B (zh) | 与植物抗逆相关的erf类转录因子及其编码基因和应用 | |
CN106222182B (zh) | 编码甘薯ERF转录因子的IbERF5基因及应用 | |
CN106244607B (zh) | 棉花细胞色素p450 cyp94c1基因在抗黄萎病中的应用 | |
CN107746846B (zh) | 编码甘薯bZIP转录因子的IbABF4基因及应用 | |
CN101747419A (zh) | 耐盐相关蛋白及其编码基因与应用 | |
CN104862320B (zh) | 一种编码甘薯ERF转录因子的IbERF4基因及应用 | |
CN110643618A (zh) | 小桐子MYB类转录因子JcMYB16基因及其在提高植物抗旱性中的应用 | |
CN110128516B (zh) | 大麦耐湿调控基因HvERF2.11、蛋白及其在育种中的应用 | |
CN107056911A (zh) | 一种促进植物提前开花的草莓转录因子及其应用 | |
CN104327173A (zh) | 一种调控植物耐盐性的棉花WRKY转录因子GarWRKY22及应用 | |
CN105671058B (zh) | 编码甘薯erf转录因子的基因及应用 | |
CN104031924A (zh) | 水稻耐逆性相关MYB转录因子基因OsMYB1R1及应用 | |
CN102719449A (zh) | 苹果抗逆相关基因MdSIMYB1的克隆及其应用 | |
CN113621625B (zh) | 芝麻SiERF103基因在增强植物抗性中的应用 | |
CN112941050B (zh) | 蜡梅GDSL脂肪酶基因CpGLIP1及其应用 | |
CN118147175B (zh) | MtCOMT13基因在调控植物耐盐抗旱性中的应用 | |
CN113604480A (zh) | 一种玉米转录因子ZmHsf28及应用 | |
CN116589545B (zh) | Onac096基因在控制水稻抗旱性中的应用 | |
CN103740725A (zh) | 一种大豆小RNA基因gma-miR1510a及在盐碱调控中的应用 | |
CN108570471A (zh) | 佛甲草耐盐基因sleipp及其应用 | |
CN103145816B (zh) | 蛋白质激发子Hrip1在提高和改善植物的耐盐和抗旱能力中的应用 | |
CN110241122A (zh) | 中间锦鸡儿CiCPK10基因在调控植物抗逆性的应用 | |
CN110184253A (zh) | 中间锦鸡儿CiCPK32基因在调控植物抗逆性的应用 | |
CN108841833A (zh) | 一种dpbf1重组片段及其应用 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180921 |