中国水稻科学2011，Vol.25Issue(4)：357-364,8.DOI:10.3969/j.issn.1001-7216.2011.04.003
太湖流域晚粳品种抽穗期的遗传分析
Genetic Analysis of Heading Date of Late Season Japonica Rice from Taihu Lake Region
摘要
Abstract
Heading dates of 20 late season japonica rice cultivars native to the Taihu Lake region of China were investigated. and their basic vegetative growth (BVG), photoperiod-sensitivity (PS) and temperature-sensitivity (TS) were analyzed under artificial short-day and natural long-day conditions in Nanjing, as well as artificial high temperature and natural low temperature conditions in winter in Hainan. The results showed that all the cultivars had strong PS, and most of the cultivars had strong TS and short BVG. Regression analysis showed a significant correlation between heading date and PS, indicating PS was the main factor affecting heading date of late season japonica rice cultivars from the Taihu Lake region. Genetic analyses were conducted by using a set of heading date near isogenic lines as tester lines. All these japonica cultivars carried the dominant photoperiod sensitivity allele Ei and the dominant early-heading gene Ef-1. At the E2 and E3 loci, most of the late season japonica cultivars carried the photoperiod insensitivity alleles e2 and e3 , but some carried the photoperiod sensitivity alleles E2 and E3 or E3t. At the Se-1 locus, these late season japonica cultivars mainly carried recessive photoperiod insensitivity gene Se-1e, others carried Se-1n. In addition, some of the late season japonica cultivars carried the recessive allele hd2, inhibiting the expressions of E1 and Se-1.关键词
晚粳稻/抽穗期/遗传分析/感光性/感温性/基本营养生长期Key words
late season japonica ricei heading date/ genetic analysis/ photoperiod sensitivity) temperature sensitivity/ basic vegetative growth分类
农业科技引用本文复制引用
周振玲,江玲,徐大勇,魏祥进,刘喜,卢百关,万建民..太湖流域晚粳品种抽穗期的遗传分析[J].中国水稻科学,2011,25(4):357-364,8.基金项目
国家自然科学基金资助项目(30871497) （30871497）
国家863计划资助项目(2009AA101101) （2009AA101101）
江苏省品种创新工程资助项目(BE2009301-3,BE2008354) （BE2009301-3,BE2008354）
高等学校学科创新引智计划资助项目(B08025). （B08025）
