[Genetic dissection of cooked rice elongation in rice (Oryza sativa L.)]. 2004

Guang-Heng Zhang, and Da-Li Zeng, and Long-Biao Guo, and Qian Qian, and Guo-Ping Zhang, and Sheng Teng, and Li-Huang Zhu
State Key Lab for Rice Biology, CNRRI, Hangzhou, China. zghhz@hotmail.com

QTLs for milled rice length (MRL), cooked rice length (CRL) and cooked rice elongation (CRE) were identified by using a population of 127 DH lines derived from a cross between ZYQ8 and JX17. Totally, 14 QTLs for rice elongation traits were detected on chromosomes 1, 2, 3, 5, 6, 7, 10, 11 and 12. Two putative QTLs for MRL were mapped on chromosomes 2. Seven putative QTLs for CRL were mapped on chromosomes 1, 6, 7, 10, 11 and 12. Five putative QTLs for CRE were mapped on chromosomes 5, 6, and 10. The regions of G249-G164 on chromosome 3, G30-RZ516 on chromosome 6 and G1082-GA223 on chromosome 10 were detected simultaneously for affecting cooked rice length and cooke rice elongation. LODs of the QTLs related to rice elongation varied from 2.26 to 9.25, and their explained variations from 5.31% to 17.21% . It is indicated that cooked rice elongation was controlled by polygene and Wx-gene located on the same region with qCRE-6 was important to cooked rice elongation.

UI MeSH Term Description Entries
D002874 Chromosome Mapping Any method used for determining the location of and relative distances between genes on a chromosome. Gene Mapping,Linkage Mapping,Genome Mapping,Chromosome Mappings,Gene Mappings,Genome Mappings,Linkage Mappings,Mapping, Chromosome,Mapping, Gene,Mapping, Genome,Mapping, Linkage,Mappings, Chromosome,Mappings, Gene,Mappings, Genome,Mappings, Linkage
D003433 Crosses, Genetic Deliberate breeding of two different individuals that results in offspring that carry part of the genetic material of each parent. The parent organisms must be genetically compatible and may be from different varieties or closely related species. Cross, Genetic,Genetic Cross,Genetic Crosses
D006239 Haplotypes The genetic constitution of individuals with respect to one member of a pair of allelic genes, or sets of genes that are closely linked and tend to be inherited together such as those of the MAJOR HISTOCOMPATIBILITY COMPLEX. Haplotype
D012275 Oryza A genus of grass family (Poaceae) that include several rice species. Oryza sativa,Rice,Rices
D032461 Chromosomes, Plant Complex nucleoprotein structures which contain the genomic DNA and are part of the CELL NUCLEUS of PLANTS. Chromosome, Plant,Plant Chromosome,Plant Chromosomes
D040641 Quantitative Trait Loci Genetic loci associated with a quantitative trait. Quantitative Trait Loci Genes,Loci, Quantitative Trait,Locus, Quantitative Trait,Quantitative Trait Locus,Trait Loci, Quantitative,Trait Locus, Quantitative

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