RICE SCIENCE ›› 2009, Vol. 16 ›› Issue (1): 72-74 .DOI: 10.1016/S1672-6308(08)60059-1

• Short Communication • Previous Articles     Next Articles

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

JIANG Jing 1; ZHUANG Jie-yun 2; FAN Ye-yang 2; SHEN Bo 1   

  1. 1 College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 310012, China; 2 Chinese National Center for Rice Improvement/State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China
  • Received:2008-09-04 Online:2009-03-28 Published:2009-03-28
  • Contact: SHEN Bo
  • Supported by:
    the Super Rice Program of Ministry of Agriculture of China (Grant No. 200606), the Key Program of Zhejiang Province, China (Grant No. 2003G10028) and the China Postdoctoral Science Foundation (Grant No. 2003034232).

Abstract: 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.

Key words: rice, malondialdehyde content, quantitative trait locus, leaf, stress tolerance