生物技术通报 ›› 2017, Vol. 33 ›› Issue (8): 46-50.doi: 10.13560/j.cnki.biotech.bull.1985.2017-0132

• 研究报告 • 上一篇    下一篇

水稻无蜡质叶片突变体wcl1的图位克隆

王佳梅, 安雪娇, 张治国   

  1. 中国农业科学院生物技术研究所,北京 100081
  • 收稿日期:2017-02-27 出版日期:2017-08-01 发布日期:2017-08-01
  • 作者简介:王佳梅,女,硕士,研究方向:植物分子生物学及基因工程;E-mail:953867377@qq.com
  • 基金资助:
    中国农业科学院创新工程(CAAS-XTCX2016002)

Mapping-based Cloning of a Wax Crystal-Sparse Leaf Mutant wcl1 in Rice

WANG Jia-mei, AN Xue-jiao, ZHANG Zhi-guo   

  1. Biotechnology Research Institute,Chinese Academy of Agricultural Sciences,Beijing 100081
  • Received:2017-02-27 Published:2017-08-01 Online:2017-08-01

摘要: 从水稻T-DNA插入突变体库中筛选获得1份叶片表皮无蜡质的突变体wcl1(Wax Crystal-Sparse Leaf 1),突变体wcl1有如下主要特征:一是突变体叶片角质层蜡质减少,二是突变体的干旱敏感性高于野生型。通过图位克隆技术,克隆了wcl1基因,其编码酮酯酰辅酶A(LOC_OS09g25850),在突变体中LOC_OS09g25850基因的第10个外显子处鸟嘌呤(G)突变为胸腺嘧啶(T)导致转录提前终止,经分析表明突变体wcl1是一个wsl2基因的等位突变体。

关键词: 水稻, 无蜡质叶片突变体, 图位克隆

Abstract: Here a wax crystal-sparse leaf mutant(wcl1)was screened from rice T-DNA Insertion Mutant Library. The mutant wcl1has two main features as following:1)the wcl1 leaf cuticular wax reduced;2)the drought sensitivity in the wcl1 plant was higher than wild type. Map-based cloning of wcl1 revealed that a point mutation of G to T in the 10th exonof gene LOC_OS09g25850encodingketoacyl coenzymeA resulted in the termination of transcription. The analysisshowed that the wcl1was allelic to wsl2.

Key words: rice, wax crystal-sparse leaf mutant, map-based cloning