We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Development of a wide population of chromosome single-segment substitution lines in the genetic background of an elite cultivar of rice (Oryza sativa L.).
- Authors
Zhang-Ying Xi; Feng-Hua He; Rui-Zhen Zeng; Ze-Min Zhang; Xiao-Hua Ding; Wen-Tao Li; Gui-Quan Zhang; Gustafson, J. P.
- Abstract
Naturally occurring allelic variations underlying complex traits are useful resources for the functional analysis of plant genes. To facilitate the genetic analysis of complex traits and the use of marker-assisted breeding in rice, we developed a wide population consisting of 217 chromosome single-segment substitution lines (SSSLs) using Oryza sativa L. 'Hua-Jing-Xian74' (HJX74), an elite Indica cultivar, as recipient, and 6 other accessions, including 2 Indica and 4 Japonica, as donors. Each SSSL contains a single substituted chromosome segment derived from 1 of the 6 donors in the genetic background of HJX74. The total size of the substituted segments in the SSSL population was 4695.0 cM, which was 3.1 times that of rice genome. To evaluate the potential application of these SSSLs for quantitative trait loci detection, phenotypic variations of the quantitative traits of days to heading and grain length in the population consisting of 210 SSSLs were observed under natural environmental conditions. The results demonstrated that there was a wide range of phenotypic variation in the traits in the SSSL population. These genetic materials will be powerful tools to dissect complex traits into a set of monogenic loci and to assign phenotypic values to different alleles at the locus of interest.
- Subjects
CHROMOSOMES; RICE; GENETICS; CULTIVARS; PLANT genetics
- Publication
Genome, 2006, Vol 49, Issue 5, p476
- ISSN
0831-2796
- Publication type
Article
- DOI
10.1139/G06-005