A 2500-locus bin map of wheat homoeologous group 5 provides insights on gene distribution and colinearity with rice

被引:51
作者
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
机构
[1] Univ Calif Davis, Dept Agron & Range Sci, Davis, CA 95616 USA
[2] Kansas State Univ, Dept Plant Pathol, Wheat Genet Resource Ctr, Manhattan, KS 66506 USA
[3] Univ Calif Davis, Genet Resources Conservat Program, Davis, CA 95616 USA
[4] USDA, ARS, Western Reg Res Ctr, Albany, CA 94710 USA
[5] Univ Missouri, Dept Agron, Columbia, MO 65211 USA
[6] Colorado State Univ, Dept Soil & Crop Sci, Ft Collins, CO 80523 USA
[7] Univ Missouri, USDA ARS, Dept Agron, Columbia, MO 65211 USA
[8] Cornell Univ, Dept Plant Breeding, Ithaca, NY 14853 USA
[9] N Dakota State Univ, Dept Plant Sci, Fargo, ND 58105 USA
[10] Washington State Univ, Dept Crop & Soil Sci, Pullman, WA 99164 USA
[11] Univ Minnesota, Dept Agron & Plant Genet, St Paul, MN 55108 USA
[12] Univ Calif Riverside, Dept Bot & Plant Sci, Riverside, CA 92521 USA
关键词
D O I
10.1534/genetics.104.034835
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
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).
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收藏
页码:665 / 676
页数:12
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