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GrainGenes Reference Report: GEN-168-665

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Reference	GEN-168-665
Title	A 2500-Locus Bin Map of Wheat Homoeologous Group 5 Provides Insights on Gene Distribution and Colinearity With Rice
Journal	Genetics
Year	2004
Volume	168
Pages	665-676
Author	[ Hide all but 1 of 32 ] Linkiewicz AM Qi LL Gill BS Ratnasiri A Echalier B Chao S Lazo GR Hummel DD Anderson OD Akhunov ED Dvorak J Pathan MS Nguyen HT Peng JH Lapitan NLV Miftahudin Gustafson JP La Rota CM Sorrells ME Hossain KG Kalavacharla V Kianian SF Sandhu D Bondareva SN Gill KS Conley EJ Anderson JA Fenton RD Close TJ McGuire PE Qualset CO Dubcovsky J
Abstract	We constructed high-density deletion bin maps of wheat chromosomes 5A, 5B, and 5D, including 2338 loci mapped with 1052 EST probes and 217 previously mapped loci (total 2555 loci). This information was combined to construct a consensus chromosome bin map of group 5 including 24 bins. A relatively higher number of loci were mapped on chromosome 5B (38%) compared to 5A (34%) and 5D (28%). Differences in the levels of polymorphism among the three chromosomes were partially responsible for these differences. A higher number of duplicated loci was found on chromosome 5B (42%). Three times more loci were mapped on the long arms than on the short arms, and a significantly higher number of probes, loci, and duplicated loci were mapped on the distal halves than on the proximal halves of the chromosome arms. Good overall colinearity was observed among the three homoeologous group 5 chromosomes, except for the previously known 5AL/4AL translocation and a putative small pericentric inversion in chromosome 5A. Statistically significant colinearity was observed between low-copy-number ESTs from wheat homoeologous group 5 and rice chromosomes 12 (88 ESTs), 9 (72 ESTs), and 3 (84 ESTs)
External Databases	Pubmed: 15514043
Keyword	chromosomes [ Show all 7 ]

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