Mapping of QTLs for Leaf Malondialdehyde Content Associated with Stress Tolerance in Rice

Malondialdehyde (MDA) is the final product of lipid peroxidation, and MDA content can reflect the stress tolerance of plants. To map QTLs conditioning the MDA content in rice leaves, a recombinant inbred line (RIL) population with 247 lines derived from an indica-indica cross Zhenshan 97B′Milyang 46, and a linkage map consisting of 207 DNA markers were used. The RIL population showed a transgressive segregation in the MDA content of rice leaves. Two QTLs for the MDA content in rice leaves were detected in the intervals RG532-RG811 and RG381-RG236 on chromosome 1, with the additive effects from maternal and paternal parents, accounting for 4.33% and 4.62% of phenotype variations, respectively.

作 者： JIANG Jing ZHUANG Jie-yun FAN Ye-yang SHEN Bo   作者單位： JIANG Jing,SHEN Bo(College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 310012, China)

ZHUANG Jie-yun,FAN Ye-yang(Chinese National Center for Rice Improvement/State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China) 

刊 名： 水稻科學（英文版）  英文刊名： RICE SCIENCE  年，卷(期)： 2009 16(1)  分類號： S5  關鍵詞： rice   malondialdehyde content   quantitative trait locus   leaf   stress tolerance