摘要
水稻耐旱性较复杂，在干旱胁迫下，叶片相对含水量的性状可以作为品种参考依据。本文利用耐旱性好的籼稻品种“绿旱1号”与粳稻品种“日本晴”构建杂交 F2群体，进行叶片相对含水量的 QTL定位分析，结果表明：在第4、6染色体上找到2个 QTL位点，分别位于标记在4-27M与4-23M之间和6-3M和RM276之间，对表型变异的贡献率范围为4.81%～6.43%。
Drought tolerance is complex in rice. Under drought stress, leaf water content trait can be used as a indicator for variety evaluation. In this study, ahybrid F2 population was constructed with drought-tolerant indica rice cultivar Luhan No.1 and japonica rice cultivar Nipponbare, to analyze QTLs related with relative water content in rice. According to the results, two QTLs were detected between markers 4-27M and 4-23M and between markers 6-3M and RM276 on chromosomes 4 and 6, with the contribution rate of 4.81% -6.43% to phenotypic variation.
基金
Supported by National "863" Project of China(2014AA10A603)
Youth Innovation Fund of President of Anhui Academy of Agricultural Sciences(14B0114)
Open Project of State Key Laboratory of Crop Genetic Improvement of Huazhong Agricultural University~~
