CN116254282A - 一种调控谷子锈病抗性的SiPK6基因及其应用 - Google Patents
一种调控谷子锈病抗性的SiPK6基因及其应用 Download PDFInfo
- Publication number
- CN116254282A CN116254282A CN202310076735.1A CN202310076735A CN116254282A CN 116254282 A CN116254282 A CN 116254282A CN 202310076735 A CN202310076735 A CN 202310076735A CN 116254282 A CN116254282 A CN 116254282A
- Authority
- CN
- China
- Prior art keywords
- sipk6
- gene
- millet
- rust
- resistance
- 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.)
- Pending
Links
- 244000062793 Sorghum vulgare Species 0.000 title claims abstract description 58
- 235000019713 millet Nutrition 0.000 title claims abstract description 58
- 108090000623 proteins and genes Proteins 0.000 title claims abstract description 55
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 9
- 230000001276 controlling effect Effects 0.000 title claims description 6
- 208000035240 Disease Resistance Diseases 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000002773 nucleotide Substances 0.000 claims abstract description 5
- 125000003729 nucleotide group Chemical group 0.000 claims abstract description 5
- 235000013339 cereals Nutrition 0.000 claims description 13
- 239000013604 expression vector Substances 0.000 claims description 9
- 238000010367 cloning Methods 0.000 claims description 8
- 238000011081 inoculation Methods 0.000 claims description 8
- 230000002018 overexpression Effects 0.000 claims description 8
- 239000002299 complementary DNA Substances 0.000 claims description 6
- 239000013598 vector Substances 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 102000004169 proteins and genes Human genes 0.000 claims description 3
- 125000003275 alpha amino acid group Chemical group 0.000 claims description 2
- 229920001184 polypeptide Polymers 0.000 claims description 2
- 102000004196 processed proteins & peptides Human genes 0.000 claims description 2
- 108090000765 processed proteins & peptides Proteins 0.000 claims description 2
- 230000009466 transformation Effects 0.000 claims description 2
- 230000009261 transgenic effect Effects 0.000 abstract description 24
- 241000894006 Bacteria Species 0.000 abstract description 3
- 238000009395 breeding Methods 0.000 abstract 1
- 230000001488 breeding effect Effects 0.000 abstract 1
- 241000196324 Embryophyta Species 0.000 description 10
- 241000233866 Fungi Species 0.000 description 7
- 238000003776 cleavage reaction Methods 0.000 description 6
- 230000007017 scission Effects 0.000 description 6
- 201000010099 disease Diseases 0.000 description 5
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 5
- 230000014509 gene expression Effects 0.000 description 5
- 230000000503 lectinlike effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 108020004414 DNA Proteins 0.000 description 4
- 108091000080 Phosphotransferase Proteins 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 102000020233 phosphotransferase Human genes 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 4
- 241000589158 Agrobacterium Species 0.000 description 3
- 241000221785 Erysiphales Species 0.000 description 3
- 102000004856 Lectins Human genes 0.000 description 3
- 108090001090 Lectins Proteins 0.000 description 3
- 102000001253 Protein Kinase Human genes 0.000 description 3
- 108091005682 Receptor kinases Proteins 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 208000015181 infectious disease Diseases 0.000 description 3
- 239000002523 lectin Substances 0.000 description 3
- 239000013612 plasmid Substances 0.000 description 3
- 108060006633 protein kinase Proteins 0.000 description 3
- 241000219194 Arabidopsis Species 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 2
- 108090000790 Enzymes Proteins 0.000 description 2
- 206010020649 Hyperkeratosis Diseases 0.000 description 2
- 102000018656 Mitogen Receptors Human genes 0.000 description 2
- 108010052006 Mitogen Receptors Proteins 0.000 description 2
- 235000007199 Panicum miliaceum Nutrition 0.000 description 2
- 241000589615 Pseudomonas syringae Species 0.000 description 2
- 241000209140 Triticum Species 0.000 description 2
- 235000021307 Triticum Nutrition 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000004925 denaturation Methods 0.000 description 2
- 230000036425 denaturation Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000408 embryogenic effect Effects 0.000 description 2
- 239000000499 gel Substances 0.000 description 2
- 244000304962 green bristle grass Species 0.000 description 2
- 230000003834 intracellular effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003752 polymerase chain reaction Methods 0.000 description 2
- 238000012257 pre-denaturation Methods 0.000 description 2
- 108020003175 receptors Proteins 0.000 description 2
- 102000005962 receptors Human genes 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000010839 reverse transcription Methods 0.000 description 2
- 238000012163 sequencing technique Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 102000016928 DNA-directed DNA polymerase Human genes 0.000 description 1
- 108010014303 DNA-directed DNA polymerase Proteins 0.000 description 1
- 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 1
- 241000588724 Escherichia coli Species 0.000 description 1
- 108091092584 GDNA Proteins 0.000 description 1
- 240000005979 Hordeum vulgare Species 0.000 description 1
- 235000007340 Hordeum vulgare Nutrition 0.000 description 1
- 208000031888 Mycoses Diseases 0.000 description 1
- 238000002944 PCR assay Methods 0.000 description 1
- 241000588701 Pectobacterium carotovorum Species 0.000 description 1
- 241000722337 Pholiota Species 0.000 description 1
- 241000233614 Phytophthora Species 0.000 description 1
- 241000221576 Uromyces Species 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000016383 Zea mays subsp huehuetenangensis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 230000036579 abiotic stress Effects 0.000 description 1
- 239000011543 agarose gel Substances 0.000 description 1
- 238000000246 agarose gel electrophoresis Methods 0.000 description 1
- 230000009418 agronomic effect Effects 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 239000003124 biologic agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012215 gene cloning Methods 0.000 description 1
- 230000002068 genetic effect Effects 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000028993 immune response Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- 229930027917 kanamycin Natural products 0.000 description 1
- 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 1
- 229960000318 kanamycin Drugs 0.000 description 1
- 229930182823 kanamycin A Natural products 0.000 description 1
- 235000009973 maize Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001404 mediated effect Effects 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008121 plant development Effects 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000003753 real-time PCR Methods 0.000 description 1
- 230000024428 response to biotic stimulus Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 150000003722 vitamin derivatives Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
- C12N9/10—Transferases (2.)
- C12N9/12—Transferases (2.) transferring phosphorus containing groups, e.g. kinases (2.7)
- C12N9/1205—Phosphotransferases with an alcohol group as acceptor (2.7.1), e.g. protein kinases
-
- 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
- C12N15/8279—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 biotic stress resistance, pathogen resistance, disease resistance
- C12N15/8282—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 biotic stress resistance, pathogen resistance, disease resistance for fungal resistance
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Genetics & Genomics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Molecular Biology (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Biomedical Technology (AREA)
- Biotechnology (AREA)
- General Engineering & Computer Science (AREA)
- Microbiology (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Cell Biology (AREA)
- Physics & Mathematics (AREA)
- Biophysics (AREA)
- Plant Pathology (AREA)
- Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
Abstract
本发明公开了一种调控谷子锈病抗性的SiPK6基因及其应用。本研究从谷子中分离和克隆到核苷酸序列如SEQ ID NO.1所示的基因SiPK6,将该基因在谷子中超量表达后,得到锈病抗性提高的转基因植株,具体表现为:过表达SiPK6基因的株系与野生型株系相比,接种谷锈病菌后第14天,SiPK6转基因后代植株的叶片上锈菌夏孢子堆数量减少、占叶面积的比例变小、严重度降低,抗病能力提高,说明SiPK6参与了谷子的抗锈病过程。因此,SiPK6基因对于提高谷子抗锈病性具有重要的理论和实际意义,将在谷子抗病育种改良中发挥作用,应用前景广阔。
Description
技术领域
本发明属于生物技术领域,尤其涉及一种调控谷子锈病抗性的SiPK6基因及其应用。
技术背景
谷子(Setaria italica(L.)Beauv.)抗旱耐瘠、粮草兼用、营养丰富,分布于亚、欧等地。谷子在中国的种植面积和产量均居世界之首,是我国北方重要的杂粮作物。
谷子锈病由粟单胞锈菌(Uromyces setariae-italicae Yoshino)引起,是谷子生产上的主要气传流行性病害之一,一般减产10%~30%,流行年份植株倒伏,颗粒无收,严重影响着谷子的稳产和高产。随着谷子产业化水平的大幅提高,锈病流行年份危害更加严重,已经成为制约谷子产业发展的重要因素之一。防治谷锈病最经济有效的措施是培育和利用谷子抗锈品种,为此,广泛挖掘与克隆谷子抗锈及其相关基因是非常必要的前提。
凝集素类受体蛋白激酶(Lectin receptor-like kinases,LecRLKs),是类受体激酶(Receptor-like kinases,RLKs)的一个家族,主要包括胞外凝集素lectin结构域、跨膜结构域和胞内激酶结构域,通过胞外凝集素区域与外界信号分子的识别与结合、胞内激酶结构域进行信号的传递,在植物生长发育和对生物和非生物胁迫响应中发挥重要作用。LecRLKs根据胞外凝集素结构域差异分为三类:L、G和C型,其中L型是凝集素类受体激酶中的一个大家族,参与植物的抗病反应。目前已报道16个L型凝集素类受体激酶参与了植物抗病,其中拟南芥中11个。例如,拟南芥中的LecRK-V.5负调控气孔介导的免疫反应,基因突变后,植物会增加对丁香假单胞菌Pst DC3000的抗性,而降低对疫霉菌的抗性;过表达该基因会使植物易感染Pst DC3000。LecRK-V1.2参与抗丁香假单胞杆菌和胡萝卜软腐果胶杆菌,其表达受病原菌的诱导。小麦中LecRK-V的表达在白粉病菌Bgt接种后迅速上调,转入该基因的易感品种可显著提高其在苗期和成熟期的白粉病抗性,并且苗期转基因植株高抗多种Bgt分离株,表明LecRK-V对白粉病具有广谱抗性;并且其在大麦中的同源基因Rphq2和Rphq22也参与了抗叶锈病反应。因此,L型凝集素类受体激酶广泛参与植物的抗病反应。目前,谷子中L型凝集素类受体激酶尚未有报道。
发明内容
本发明提供了一种调控谷子锈病抗性的SiPK6基因及其应用。本发明从谷子中分离和克隆到SiPK6基因,编码L型凝集素类受体激酶,将其全长CDS连接到ubiqutin(缩写为Ubi)启动子启动的表达载体上,利用农杆菌侵染转化谷子。实验证实接种谷锈病菌后第14天,SiPK6转基因后代植株的叶片上锈菌夏孢子堆数量减少、占叶面积的比例变小、严重度降低,提高了谷子抗锈病性。
为实现发明目的,本发明采用下述技术方案予以实现:
本发明提供了一种调控谷子抗锈病的SiPK6基因,所述SiPK6基因的核苷酸序列如SEQ ID NO.1所示。
进一步的,所述SiPK6基因的CDS核苷酸序列如SEQ ID NO.2所示;其编码产生的SiPK6蛋白的氨基酸序列如SEQ ID NO.3所示。
本发明提供了所述的SiPK6基因在提高谷子抗谷子锈病中的应用。
进一步的,将含有SiPK6基因的过表达载体转化到谷子中,获得具有锈菌侵染后的谷子叶片上锈菌夏孢子堆数量减少、占叶面积的比例变小、严重度降低的谷子株系。
进一步的,所述含有SiPK6基因的过表达载体是通过提取谷子RNA、RNA反转录成cDNA、基因克隆,再与Ubi启动的pTCK303表达载体连接获得的。
进一步的,所述基因克隆的引物序列为:
PK6-F:5’-ATGCCTCTCGAGCTTCTCC-3’;
PK6-R:5’-CCTTCCTCCAGAGAGATCAG-3’。
进一步的,过表达SiPK6基因的株系与野生型株系相比,谷锈菌侵染后第14天谷子叶片上锈菌夏孢子堆数量减少、占叶面积的比例变小、严重度降低,从而提高了谷子的抗锈病性。
进一步的,在未接菌条件下,过表达SiPK6基因的株系与野生型株系相比,籽粒大小没有明显变化。
与现有技术相比,本发明的优点和积极效果是:
本发明将SiPK6基因全长CDS连接到Ubi启动的pTCK303表达载体上,利用农杆菌侵染转化谷子,经实验验证SiPK6基因过表达可以使接种谷锈菌后第14天的谷子转基因株系的叶片上锈菌夏孢子堆数量减少、占叶面积的比例变小、严重度降低,从而提高了谷子的抗锈病性。SiPK6基因属于植物凝集素类受体蛋白激酶家族基因。鉴于SiPK6基因在转基因谷子中呈现的表型,能够认为该基因对于提高谷子抗病性具有重要的理论意义和潜在的应用价值。
附图说明
图1是构建的过表达载体的示意图以及酶切位点。其中,表达载体为pTCK303,启动子为Ubi,目的基因SiPK6两端的酶切位点分别为KpnⅠ和SpeⅠ。
图2A为克隆得到目的基因SiPK6的示意图,大小为2016bp;图2B为目的基因连接到pTCK303表达载体所得到的阳性克隆。
图3为转基因株系阳性苗表达量鉴定。
图4A为转基因株系Ubi︰︰SiPK6与野生型Ci846接种锈菌后第14天的叶片示意图;图4B为转基因株系Ubi︰︰SiPK6与野生型Ci846接种锈菌后第14天的叶片严重度统计数据。
图5A、5B、5C分别为转基因株系Ubi︰︰SiPK6与野生型Ci846粒长、粒宽、千粒重统计数据。
具体实施方式
下面结合附图和具体实施方式对本发明技术方案作进一步详细的说明。下述实施例中,如无特殊说明,所使用的实验方法均为常规方法,所用材料、试剂等均可从生物或化学试剂公司购买。
实施例1:SiPK6转基因株系的获得
一、谷子SiPK6基因的序列克隆与载体构建:
本发明利用谷子参考基因组数据库phytozome(https://phytozome-next.jgi.doe.gov/info/Sitalica_v2_2)找到基因SiPK6。SiPK6基因序列全长为2322bp(序列如SEQ ID NO.1所示),CDS序列为2016bp(序列如SEQ IDNO.2所示),其编码产生的SiPK6蛋白的序列如SEQ ID NO.3所示。
根据SiPK6基因的CDS序列设计引物,进行克隆,克隆方法如下:
(1)RNA的提取:使用植物组织RNA快速提取试剂盒(天根#DP452)提取谷子的总RNA。
(2)反转录cDNA第一链的合成:将提取的RNA溶解后测定RNA浓度,然后使用Fastking cDNA第一链合成试剂盒(天根#KR116)进行反转录。
取3μg总RNA,5×gDNA Buffer,置于42℃孵育3min进行基因组DNA的去除;在gDNA去除的管中加入10×King RT Buffer 2μL,FastKing RT Enzyme Mix 1μL,FQ-RT PrimerMix 2μL,补水到20μL,42℃孵育15min,95℃失活3min,得到cDNA溶液。
(3)SiPK6基因的克隆:
上游引物5’-GGTACCATGCCTCTCGAGCTTCTCC-3’(SEQ ID NO.4);
下游引物5’-ACTAGTTCACCTTCCTCCAGAGAGATC-3’(SEQ ID NO.5);
其中下划线处为酶切位点,上游引物的酶切位点为KpnⅠ,下游引物的酶切位点为SpeⅠ。
以谷锈菌侵染后的十里香叶片cDNA为模板,使用诺唯赞高保真酶(Vazyme#P520)进行扩增。50μL PCR反应体系:2×Phanta Flash Master Mix(Dye Plus)25μL、模板DNA 2μL、10μmol/L上下游引物各2μL、灭菌ddH2O 19μL。PCR扩增程序:98℃预变性30s;98℃变性10s,56℃退火5s,72℃延伸5s,35个循环反应;最后72℃再延伸1min。
反应结束后,用1.2%的琼脂糖凝胶电泳检测,按照琼脂糖凝胶回收试剂盒(美基生物#D2111)说明书步骤对目的条带(图2A)进行切胶回收。
(4)取上述3μL胶回收产物与酶切后的Ubi启动的pTCK303表达载体进行连接(图1),操作步骤按照ClonExpress Ultra One Step Cloning Kit(诺唯赞#C115)说明书进行。连接产物使用热激法转化大肠杆菌DH5α感受态细胞,在含有卡那霉素(Kan+)的LB平板上生长过夜。挑取白色单菌落至LB液体培养基(Kan+)振荡过夜培养,使用DNA聚合酶(康为世纪#CW0690)进行菌落PCR(图2B),PCR检测20μL体系:2×Es Taq MasterMix(Dye)10μL、模板DNA2μL、10μmol/L上下游引物各0.5μL、灭菌ddH2O 7μL。PCR扩增程序:94℃预变性10min;94℃变性30s,56℃退火30s,72℃延伸1min,35个循环反应;最后72℃再延伸5min。
(5)序列测定:将阳性克隆的菌液送生工生物工程(上海)股份有限公司进行序列测定。
二、谷子SiPK6的遗传转化和纯合转基因株系的筛选
将测序正确的阳性克隆在LB液体培养基(Kan+)中扩大培养,使用高纯度质粒提取试剂盒(美基生物#P1001)提取质粒DNA。
取2μL质粒转化至农杆菌EHA105,侵染谷子胚性愈伤组织细胞。谷子胚性愈伤组织细胞来自谷子的野生型品种Ci846。通过潮霉素筛选,得到Ubi︰︰SiPK6/Ci846的过表达材料。通过Real-time PCR检测,获得#7、#14,#15三个稳定过表达转基因材料。
实施例2:SiPK6影响植株对锈病的抗性
一、过表达SiPK6转基因株系的锈病抗性表型
1、将野生型谷子Ci846作为对照,对获得的纯合转基因材料Ubi︰︰SiPK6进行SiPK6基因表达量检测。结果如图3所示,与野生型Ci846相比,转基因材料#7、#14,#15中的SiPK6基因的表达量均明显上升,证明本发明确实获得了过表达SiPK6的谷子转基因株系。
2、将谷子转基因株系Ubi︰︰SiPK6和野生型谷子Ci846于相同条件下进行栽培种植,于6叶期进行谷锈菌接种鉴定。对接种后第14天的转基因株系Ubi︰︰SiPK6与野生型Ci846的发病叶片上夏孢子堆进行观察和统计,结果如图4所示,与野生型相比,谷子转基因株系的叶片上锈菌夏孢子堆数量减少、占叶面积的比例变小,具体表现为夏孢子堆占叶面积的比例降低了约24%。
二、过表达SiPK6转基因株系的农艺性状表型
对成熟后转基因株系与野生型Ci846的粒长、粒宽、千粒重进行测量和统计,结果如图5所示,过表达SiPK6的转基因株系的粒长、粒宽、千粒重均与野生型相似,没有明显变化。
上述结果表明,SiPK6基因可以降低谷子叶片上锈菌夏孢子堆的数量,而不影响谷子籽粒大小,进而SiPK6基因在提高谷子锈病抗性上具有重要的理论意义和潜在的应用价值。
以上实施例仅用以说明本发明的技术方案,而非对其进行限制;尽管参照前述实施例对本发明进行了详细的说明,对于本领域的普通技术人员来说,依然可以对前述实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或替换,并不使相应技术方案的本质脱离本发明所要求保护的技术方案的精神和范围。
Claims (8)
1.一种调控谷子锈病抗性的SiPK6基因,其特征在于,所述SiPK6基因的核苷酸序列如SEQ ID NO.1所示。
2.根据权利要求1所述的调控谷子锈病抗性的SiPK6基因,其特征在于,所述SiPK6基因的CDS核苷酸序列如SEQ ID NO.2所示;其编码产生的PK6蛋白的氨基酸序列如SEQ ID NO.3所示。
3.权利要求1所述的SiPK6基因在用于提高谷子抗锈病性中的应用。
4.根据权利要求3所述的应用,其特征在于,将含有SiPK6基因的过表达载体转化到谷子中获得具有抗锈病性提高的谷子株系。
5.根据权利要求4所述的应用,其特征在于,所述含有SiPK6基因的过表达载体是通过提取谷子RNA、RNA反转录成cDNA、基因克隆,再与Ubi启动的pTCK303表达载体连接获得的。
6.根据权利要求5所述的应用,其特征在于,所述基因克隆的引物序列为:
PK6-F:5’-ATGCCTCTCGAGCTTCTCC-3’;
PK6-R:5’-TCACCTTCCTCCAGAGAGATC-3’。
7.根据权利要求3所述的应用,其特征在于,过表达SiPK6基因的株系与野生型株系相比,接种谷锈菌后第14天谷子叶片上锈菌夏孢子堆数量减少、占叶面积的比例变小、严重度降低,从而提高了谷子的抗锈病性。
8.根据权利要求3所述的应用,其特征在于,过表达SiPK6基因的株系与野生型株系相比,谷子的籽粒大小没有明显变化。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202310076735.1A CN116254282A (zh) | 2023-02-03 | 2023-02-03 | 一种调控谷子锈病抗性的SiPK6基因及其应用 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202310076735.1A CN116254282A (zh) | 2023-02-03 | 2023-02-03 | 一种调控谷子锈病抗性的SiPK6基因及其应用 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN116254282A true CN116254282A (zh) | 2023-06-13 |
Family
ID=86687336
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202310076735.1A Pending CN116254282A (zh) | 2023-02-03 | 2023-02-03 | 一种调控谷子锈病抗性的SiPK6基因及其应用 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN116254282A (zh) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103382471A (zh) * | 2012-05-02 | 2013-11-06 | 董志平 | 谷子抗锈基因共分离的分子标记及其检测方法 |
WO2019222379A1 (en) * | 2018-05-15 | 2019-11-21 | Flagship Pioneering Innovations Vi, Llc. | Pest control compositions and uses thereof |
CN113999858A (zh) * | 2021-12-13 | 2022-02-01 | 山东农业大学 | 一种调控谷子生长发育的SiPLATZ12基因及其应用 |
-
2023
- 2023-02-03 CN CN202310076735.1A patent/CN116254282A/zh active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103382471A (zh) * | 2012-05-02 | 2013-11-06 | 董志平 | 谷子抗锈基因共分离的分子标记及其检测方法 |
WO2019222379A1 (en) * | 2018-05-15 | 2019-11-21 | Flagship Pioneering Innovations Vi, Llc. | Pest control compositions and uses thereof |
CN113999858A (zh) * | 2021-12-13 | 2022-02-01 | 山东农业大学 | 一种调控谷子生长发育的SiPLATZ12基因及其应用 |
Non-Patent Citations (4)
Title |
---|
NCBI: "PREDICTED: Setaria italica L-type lectin-domain containing receptor kinase IV.1-like (LOC111256802), mRNA", GENBANK, 13 October 2017 (2017-10-13), pages 022825415 * |
WAN ZHAO等: "Genome-wide analysis of the lectin receptor-like kinase family in foxtail millet (Setaria italica L.)", PLANT CELL, vol. 127, 29 August 2016 (2016-08-29), pages 335 - 346, XP036084494, DOI: 10.1007/s11240-016-1053-y * |
YAJUN WANG等: "Orthologous receptor kinases quantitatively affect the host status of barley to leaf rust fungi", NATURE PLANTS, vol. 5, no. 11, 11 November 2019 (2019-11-11), pages 1129 - 1135, XP036927300, DOI: 10.1038/s41477-019-0545-2 * |
赵立强 等: "一个谷子新抗锈基因的AFLP标记", 中国农业科学, vol. 43, no. 21, 8 November 2010 (2010-11-08), pages 4349 - 4355 * |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107602681B (zh) | 水稻粒宽基因gw5l及其应用 | |
CN101418040B (zh) | 植物茉莉酸信号传导调控蛋白及其编码基因与应用 | |
CN114164217B (zh) | 水稻OsSTE24基因在提高水稻对稻瘟病菌抗性中的应用 | |
CN112175965B (zh) | 增强水稻稻瘟病和白叶枯病抗性的基因、蛋白及提高水稻稻瘟病和白叶枯病抗性的方法 | |
CN113234729B (zh) | 可显著提高棉花黄萎病抗性的基因GauRev2及其应用 | |
CN108588041B (zh) | 海岛棉细胞色素p450基因、其编码蛋白和应用 | |
CN112062823B (zh) | Glk7蛋白及其编码基因在植物抗旱中的应用 | |
CN116286724B (zh) | 凝集素类受体蛋白TaLecRLK2及其编码基因与应用 | |
CN111087457B (zh) | 提高氮素利用率和作物产量的蛋白ngr5及其编码基因与应用 | |
CN108251435B (zh) | 野生毛葡萄商-24抗病基因VqJAZ4及其应用 | |
US20080172763A1 (en) | Nod-Factor Perception | |
CN109207485A (zh) | OsAPS1基因在改良水稻抗病性中的应用 | |
CN116254282A (zh) | 一种调控谷子锈病抗性的SiPK6基因及其应用 | |
CN106434694B (zh) | 棉花GbDREB基因在抗黄萎病中的应用 | |
CN111635906A (zh) | 海岛棉GbCYP72A2基因、其编码蛋白和应用 | |
CN105802932B (zh) | Crk4蛋白及其编码基因在调控植物抗旱性中的应用 | |
CN116004678A (zh) | 一种调控谷子锈病抗性的SiTPS27基因及其应用 | |
CN111635896B (zh) | Usb1蛋白在调控植物耐盐性中的应用 | |
CN114656537B (zh) | Grmzm2g071330蛋白及其应用 | |
CN107226849B (zh) | 水稻gw5基因在培育粒型改变的转基因植物中的应用 | |
CN118048386A (zh) | OsMAK7基因及其编码蛋白在提高水稻耐盐性中的应用 | |
CN118048339A (zh) | 一种杨树gstf12基因及其在植物抗盐性中的应用 | |
CN114908105A (zh) | 一个水稻抗稻瘟病相关基因OsPsbR及其基因工程应用 | |
CN115141832A (zh) | tae-miR397在调控小麦抗病性中的应用 | |
CN112029779A (zh) | 拟南芥中介体成员med14和/或med16基因在抗旱中的应用 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination |