Submitted to: Rice Field Day Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 8/30/2006
Publication Date: 8/30/2006
Citation: Andaya, V.C., Tai, T. 2006. Genetic mapping of the qcts12 and qcts4 loci controlling m202 rice seedling response to low temperatures.. Rice Field Day Abstract.
Technical Abstract: The California variety M202 exhibits good tolerance to low temperatures during the seedling stage of development. We have identified two major genetic loci, qCTS12 and qCTS4, which are involved in the low temperature tolerance of M202 seedlings. The qCTS12 locus, provides tolerance to cold-induced wilting and necrosis (i.e., tissue death) when transferred through genetic crossing into an indica rice variety IR50. The qCTS4 locus from M202, on the other hand, imparts tolerance to cold-induced yellowing and stunting to IR50. Genetic analysis of lines derived from crossing M202 and IR50 has enabled us to identify where these loci are located on the rice chromosomes. Here we report our progress on identifying some the genes responsible for M202 seedling cold tolerance.