Title |
Effect of advanced intercrossing on genome structure and on the power to detect linked quantitative trait loci in a multi-parent population: a simulation study in rice
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Published in |
BMC Genomic Data, April 2014
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DOI | 10.1186/1471-2156-15-50 |
Pubmed ID | |
Authors |
Eiji Yamamoto, Hiroyoshi Iwata, Takanari Tanabata, Ritsuko Mizobuchi, Jun-ichi Yonemaru, Toshio Yamamoto, Masahiro Yano |
Abstract |
In genetic analysis of agronomic traits, quantitative trait loci (QTLs) that control the same phenotype are often closely linked. Furthermore, many QTLs are localized in specific genomic regions (QTL clusters) that include naturally occurring allelic variations in different genes. Therefore, linkage among QTLs may complicate the detection of each individual QTL. This problem can be resolved by using populations that include many potential recombination sites. Recently, multi-parent populations have been developed and used for QTL analysis. However, their efficiency for detection of linked QTLs has not received attention. By using information on rice, we simulated the construction of a multi-parent population followed by cycles of recurrent crossing and inbreeding, and we investigated the resulting genome structure and its usefulness for detecting linked QTLs as a function of the number of cycles of recurrent crossing. |
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