期刊论文

Identification and Gene Mapping of a White Leaf and White Panicle Mutant wlwp7 in Rice

中文

热带作物学报

1000-2561

2021

42

09

2512-2517

10.3969/j.issn.1000-2561.2021.09.010

No.2016YFD0101100:国家重点研发计划 No.2020CX03-4:湖南农业科技创新资金项目 No.2019JJ40206:湖南省自然科学基金

本校为第一机构

水稻叶穗色泽突变体为解析不同器官叶绿素生物合成之间的内在联系提供了优良的遗传材料.本研究鉴定了1份白叶白穗突变体wlwp7(white leaf and white panicle 7),分析了wlwp7的形态、生理和遗传特点.结果表明:wlwp7对低温敏感,当环境温度为20℃时苗期叶片白化,但温度升高至30℃后叶色正常;大田环境下wlwp7抽穗后颖壳白化,叶绿素含量降低至野生型的40.73％;除结实率较野生型T98B下降6.28％外,其他产量性状不受影响;遗传分析发现,wlwp7与T98B的正反杂交F2群体中都未出现白叶绿穗和绿叶白穗重组单株,经卡方检测白叶白穗突变单株与绿叶绿穗野生型单株的理论分离比符合1 ∶ 3,表明白叶白穗性状受同一隐...

Rice mutants varied both in leaf color and panicle color are valuable genetic resources for revealing the link of chlorophyll biosynthesis between different organs. Here, a white leaf and white panicle 7 mutant (wlwp7) was identified and analyzed from morphological, physiological and genetic levels. It showed that the seedling plants of wlwp7 was sensitive to low temperature with white leaves at 20 ℃. While, it became green at a high temperature of 30 ℃. The paddy plants of wlwp7 was observed to present white hulls at heading. The chlorophyll...