新疆农业科学 ›› 2023, Vol. 60 ›› Issue (11): 2618-2626.DOI: 10.6048/j.issn.1001-4330.2023.11.003

• 作物遗传育种·种质资源·分子遗传学·土壤肥料 • 上一篇    下一篇

高温胁迫下陆地棉转录组差异性分析

王辉1(), 董永梅2,3, 郭伟锋1, 曹新川1, 郭金成1, 谢宗铭2,3(), 何良荣1()   

  1. 1.塔里木大学农学院,新疆阿拉尔 843300
    2.新疆农垦科学院棉花研究所,新疆石河子 832000
    3.作物种质创新与基因资源利用兵团重点实验室,新疆石河子 832000
  • 收稿日期:2023-01-30 出版日期:2023-11-20 发布日期:2023-12-07
  • 通信作者: 何良荣(1970-),女,湖北人,博士,教授,研究方向为棉花种质资源的研究与利用,(E-mail)hlrzky@163.com;谢宗铭(1971-),男,甘肃人,博士,研究员,研究方向为棉花种质资源保存与分子育种,(E-mail)xiezmchy@163.com
  • 作者简介:王辉(1993-),男,河南荥阳人,硕士研究生,研究方向为作物种质资源研究与创新,(E-mail)347488940@qq.com
  • 基金资助:
    新疆生产建设兵团农业科技创新工程专项(NCG202224);国家自然科学基金项目“GhCIPK6调控棉花耐热胁迫机理研究”(31550010)

Analysis of the difference of transcription groups of upland cotton under heat stress

WANG Hui1(), DONG Yongmei2,3, GUO Weifeng1, CAO Xinchuan1, GUO Jincheng1, XIE Zongming2,3(), HE Liangrong1()   

  1. 1. College of Agronomy, Tarim University, Alar Xinjiang 843300, China
    2. Cotton Research Institute, Xinjiang Academy of Agricultural Reclamation Sciences, Shihezi Xinjiang 832000, China
    3. Group Key Laboratory of Crop Germplasm Enhancement and Gene Resources Utilization,Shihezi Xinjiang 832000, China
  • Received:2023-01-30 Online:2023-11-20 Published:2023-12-07
  • Correspondence author: HE Liangrong (1970-), female, native place: Hubei, Doctor, professor, research field: research and innovation of crop germplasm resources, (E-mail)hlrzky@163.com;XIE Zongming(1971-),male, native place: Gansu, Doctor, research fellow, research field: cotton germplasm resources and molecular breeding,( E-mail) xiezmchy@163.com
  • Supported by:
    Xinjiang Production and Construction Corps Agricultural Science and Technology Innovation Project(NCG202224);National Natural Science Foundation of China " Regulation mechanism of heat stress is studied in GhCIPK6 in cotton"(31550010)

摘要:

【目的】 研究陆地棉高温胁迫下关键基因的响应,比较基因表达差异,为揭示陆地棉高温胁迫响应的分子机制提供参考。【方法】 利用RNA-Seq对正常温度(26℃)和高温胁迫(42℃)的陆地棉品系YZ1进行转录组测序和数据分析。【结果】 在WN4/WH4,WN12/WH12,WN24/WH24,WN48/WH48共鉴定出383个共有上调基因和234个共有下调基因。将差异基因按GO功能分类,主要富集到上调差异基因和下调差异基因20个类别;差异基因显著富集到类黄酮生物合成途径、苯丙烷代谢、昼夜节律-植物、内质网加工等通路;鉴定出39个转录因子,主要是WRKY和MYB两大家族;Gohir.A08G104100是高温胁迫主要的基因,对植物的耐热性至关重要,Gohir.D08G033300是质体类异戊二烯生物合成的限制酶,对叶绿体发育至关重要。2个差异基因在整个时期表达量差异倍数较为显著。【结论】 高温胁迫和正常温度下在不同时间段,陆地棉的基因转录表达差异。

关键词: RNA-Seq; 陆地棉; 高温胁迫; 差异表达; 代谢通路

Abstract:

【Objective】 To explore the response of key genes to heat stress and compare the differences of gene expression.【Methods】 RNA-Seq was used to sequence and analyze the transcriptome of YZ1 unde2r normal(26℃)and high temperature stress(42℃).【Results】 Gohir.A08G10410A total of 383 up-regulated genes and 234 down regulated genes were identified in WN4/WH4, WN12/WH12, WN24/WH24 and WN48/WH48. According to GO function, the differential genes were mainly enriched into 20 categories, namely, up-regulated differential genes and down-regulated differential genes. According to KEGG function analysis, the differential genes were significantly enriched in flavonoid biosynthesis pathway, phenylalanine metabolism, circadian rhythm-plant and endoplasmic reticulum processing and other pathways. 39 transcription factors were identified, mainly belonging to WRKY and MYB families; Combined with gene annotation, it was found that the expression levels of these two genes were significantly different in the whole period. Gohir.A08G104100 was the main gene of heat stress, which was crucial to the heat tolerance of plants, while Gohir. D08G033300 was a limiting enzyme for plastid isoprene biosynthesis and was critical for chloroplast development.【Conclusion】 Through comparative transcriptome analysis, the difference of gene transcription expression between upland cotton under high temperature stress and normal temperature is compared.

Key words: RNA-Seq; Gossypium hirsutum; heat stress; differential expression; metabolic pathway

中图分类号: 


ISSN 1001-4330 CN 65-1097/S
邮发代号:58-18
国外代号:BM3342
主管:新疆农业科学院
主办:新疆农业科学院 新疆农业大学 新疆农学会

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