Identifying of QTL forresistance to submergence in riceChinese Full Text
RAO Yuchun;LIN Han;XIAO Saqing;WU Yi;ZHANG Yue;WANG Sheng;HU Jiaqing;XUE Dawei;College of Chemisty and Life Sciences, Zhejiang Normal University;College of Life and Environmental Sciences, Hangzhou Normal University;
Abstract: In order to study the tolerance of rice seedlings to waterlogging stress, the DH population constructed by Indica rice variety Taichung local No.1（TN1） and Indica rice variety Chunjiang 06（CJ06） was used as experimental material under flooding conditions. The seedling rate was used as an indicator to analyze the QTL of the flooded data by using the molecular linkage map constructed by the group. Real-time quantitative PCR was used to analyze the expression levels of related genes before and after flooding, and the genes with significant differences in expression were sequenced. The results showed that six QTLs under flooding stress were located on chromosomes 1, 2, 6, 8 and 9. The expression of LOCOs08 g42750 in the QTL interval of chromosome 8 was found significantly different between the two parents. There were four differences in the coding region of the two parents. It showed important reference value for further fine mapping and cloning of flood-tolerant QTLs. The molecular mechanism of rice tolerance to flooding and direct seeding of rice could provide new perspectives and insights.
- DOI：
10.16218/j.issn.1001-5051.2020.03.011
- Series：
(A) Mathematics/ Physics/ Mechanics/ Astronomy; (D) Agriculture
- Subject：
Crop
- Classification Code：
S511
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