Linkage disequilibrium and sequence diversity in a 500-kbp region around the adh1 locus in elite maize germplasm

被引：71
作者：
Jung, M
Ching, A
Bhattramakki, D
Dolan, M
Tingey, S
Morgante, M
Rafalski, A
机构：
[1] Dupont Crop Genet, Expt Stn, Wilmington, DE 19880 USA
[2] Pioneer HiBred Int Inc, Johnston, IA 50131 USA
[3] Univ Udine, Dipartimento Prod Vegetale & Tecnol Agr, I-33100 Udine, Italy
来源：
THEORETICAL AND APPLIED GENETICS | 2004年 / 109卷 / 04期
关键词：
D O I：
10.1007/s00122-004-1695-8
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
Linkage disequilibrium (LD) at the adh1 locus was examined in two sets of maize inbreds. A set of 32 was chosen to represent most of the genetic diversity in the cultivated North American elite maize breeding pool. A second set of 192 inbreds was chosen to sample more deeply the two major heterotic groups in elite maize germplasm. Analysis of several loci in the vicinity of the adh1 gene shows that LD as measured by D' and r(2) extends greater than 500 kbp in this germplasm. The presence of this exceptionally long segment of high LD may be suggestive of selection acting on one of the genes in the vicinity of adh1 or of a locally reduced rate of recombination.
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页码：681 / 689
页数：9
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