期刊:CEREAL RESEARCH COMMUNICATIONS ISSN:0133-3720 , 年:2019 . 卷:47 . 期:2 页码:250-263
语种:
English
原文链接:http://dx.doi.org/10.1556/0806.47.2019.06
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- 摘要
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Senescence in a wheat (Triticum aestivum L.) leaf is a programmed degeneration process leading to death. During this process, green leaf area duration (GLAD) and green leaf number of main stem (GLNMS) are gradually reduced. In this study, the two traits of Hanxuan10/Lumai14 DH population at different development stages after anthesis were evaluated under rainfed and irrigated conditions, and QTLs were detected. GLAD and GLNMS of two parents and DH population under rainfed condition were less than those under irrigated condition, and close correlations (P < 0.05) were found between GLAD and GLNMS after 25 DAA under both water conditions. GLAD and GLNMS were co-controlled by major and minor genes. QTLs for GLAD were stably expressed at different development stages after anthesis under both water conditions, such as QGlad22-1B-1, QGlad25-1B-1, QGlad28-1B-2 detected under irrigated condition and QGlad25-1B-3, QGlad28-1B-4 mapped under rainfed condition were located at a 20.7 cM marker interval of Xgwm273-EST122 on 1B chromosome. But QTLs for GLNMS were inducibly and specifically expressed at specific developmental stages after anthesis under both water conditions. The findings provide dynamic genetic information related to wheat senescence.
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关键词
double haploid population; senescence; major gene; minor gene; correlation
- 作者信息
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通讯作者:
Wang, SG; Sun, DZ , Shanxi Agr Univ, Coll Agron, Taigu 030801, Peoples R China.
作者机构:
[1]
[
Shi, Y. G.; Lian, Y.; Shi, H. W.; Wang, S. G.; Fan, H.; Sun, D. Z. ︾ ]
Shanxi Agr Univ, Coll Agron, Taigu 030801, Peoples R China.
[2]
[
Jing, R. L. ]
Chinese Acad Agr Sci, Inst Crop Sci, Beijing 100081, Peoples R China.
作者邮箱:
wsg6162@126.com
sdz64@126.com
