华北农学报 ›› 2019, Vol. 34 ›› Issue (6): 63-73. doi: 10.7668/hbnxb.20190589

所属专题: 黄瓜 生物技术

• 作物遗传育种·种质资源·生物技术 • 上一篇    下一篇

黄瓜离体雌核发育早期相关基因的转录组初步分析

魏爱民1, 姚尧2, 刘楠1, 车黎明2, 魏盼盼2, 韩毅科1, 陈正武1, 杜胜利1   

  1. 1. 天津科润农业科技股份有限公司黄瓜研究所 蔬菜种质创新国家重点实验室 天津市蔬菜研究中心, 天津 300192;
    2. 南开大学 生命科学学院, 天津 300071
  • 收稿日期:2019-08-07 出版日期:2019-12-28
  • 通讯作者: 杜胜利(1963-),男,陕西西安人,研究员,博士,主要从事黄瓜生物技术与遗传育种研究。
  • 作者简介:魏爱民(1972-),女,天津蓟州人,研究员,硕士,主要从事黄瓜生物技术与遗传育种研究。
  • 基金资助:
    国家重点研发计划项目(2016YFD0101900);天津市自然科学基金重点项目(16JCZDJC33200);天津市蔬菜产业技术体系创新团队蔬菜生物技术育种岗位(ITTVRS2017001)

Related Genes of Cucumber in vitro Gynogenesis in the Early Stage from the Perspective of Transcriptome

WEI Aimin1, YAO Yao2, LIU Nan1, CHE Liming2, WEI Panpan2, HAN Yike1, CHEN Zhengwu1, DU Shengli1   

  1. 1. Tianjin Kernel Cucumber Research Institute, Tianjin Vegetable Research Center, Key Laboratory of Vegetable Germplasm Innovation, Tianjin 300192, China;
    2. College of Life Sciences, Nankai University, Tianjin 300071, China
  • Received:2019-08-07 Published:2019-12-28

摘要: 研究黄瓜离体雌核发育早期相关基因的表达,为进一步大幅提高黄瓜未受精子房培养胚胎诱导率奠定理论基础。采用基因表达谱芯片和qPCR技术,提取黄瓜未受精子房培养早期胚珠部位总RNA,从转录组水平分析了高频基因型和低频基因型黄瓜未受精子房培养早期差异基因表达。筛选出与胚胎发育相关的基因47个,经qPCR验证,获得8个候选基因,在高频型材料培养的前6 d均呈现高水平表达,在低频型材料培养中呈现低水平表达或总体变化下降的趋势。其中3个基因与响应水杨酸、茉莉酸防御系统,响应脱落酸刺激,生长素诱导结合蛋白以及玉米素合成途径中细胞分裂素脱氢酶的表达相关;2个基因参与POD酶活性表达;3个基因分别与苏氨酸-丝氨酸蛋白激酶、水通道蛋白以及机械敏感性离子通道蛋白相关。初步认为上述8个基因是与黄瓜离体雌核发育早期过程相关的重要基因。

关键词: 黄瓜, 离体雌核, 基因差异表达

Abstract: Differentially expressed genes of cucumber in vitro gynogenesis in the early stage were analyzed by comparing the transcriptome of early cultured ovaries from both high and low regeneration frequency genotypes with the method of gene chips and qPCR technology. The results showed that 8 differentially expressed genes we selected, which appeared high level expressions in high regeneration frequency genotype, but low level expressions or overall decline in the low regeneration frequency genotype from 0th to 6th day of culture. 3 genes were found to be associated with hormonal stimulation response:respectively response to salicylic acid and jasmonic acid defense system, abscisic acid stimulation, auxin-induced binding protein and CTK expression in the Zeatin biosynthesis. 2 genes were found to be involved in the expression of POD activity which played an important role in the progress of biological oxidation. The remaining 3 genes were related to STK activity, aquaporin, mechanosensitive ion channel protein and separately participated in response to environmental stress, response to borates, arsenites and other boron, arsenic materials, transmit signals inside and outside cells and other biological processes.It is preliminarily believed that the 8 genes were important during the early stage of cucumber in vitro gynogenesis.

Key words: Cucumber, In vitro gynogenesis, Differentially expressed genes

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引用本文

魏爱民, 姚尧, 刘楠, 车黎明, 魏盼盼, 韩毅科, 陈正武, 杜胜利. 黄瓜离体雌核发育早期相关基因的转录组初步分析[J]. 华北农学报, 2019, 34(6): 63-73. doi: 10.7668/hbnxb.20190589.

WEI Aimin, YAO Yao, LIU Nan, CHE Liming, WEI Panpan, HAN Yike, CHEN Zhengwu, DU Shengli. Related Genes of Cucumber in vitro Gynogenesis in the Early Stage from the Perspective of Transcriptome[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2019, 34(6): 63-73. doi: 10.7668/hbnxb.20190589.

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