Identifying loci influencing 1,000-kernel weight in wheat by microsatellite screening for evidence of selection during breeding

Chinese wheat mini core collection (262 accessions) was genotyped at 531 microsatellite loci representing a mean marker density of 5.1 cM. One-thousand-kernel weights (TKW) of lines were measured in five trials (three environments in four growing seasons). Structure analysis based on 42 unlinked SSR...

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Veröffentlicht in:	PloS one 2012-02, Vol.7 (2), p.e29432-e29432
Hauptverfasser:	Wang, Lanfen, Ge, Hongmei, Hao, Chenyang, Dong, Yushen, Zhang, Xueyong
Format:	Artikel
Sprache:	eng
Schlagworte:	Agricultural production Agriculture Alleles Analysis Biology Breeding Chromosomes Computer simulation Crop science Cultivars Domestication Gene frequency Genes Genetic diversity Genetic effects Genetic Variation - genetics Genome, Plant - genetics Genomes Genotype & phenotype Genotypes Germplasm Growing season Laboratories Loci Medical screening Microsatellite Repeats - genetics Microsatellites Oryza Phenotypic variations Plant breeding Population Population (statistical) Population structure Psychotria Rubiaceae Simulation Statistics Structural analysis Studies Triticum Triticum - genetics Triticum aestivum Wheat
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Zusammenfassung:	Chinese wheat mini core collection (262 accessions) was genotyped at 531 microsatellite loci representing a mean marker density of 5.1 cM. One-thousand-kernel weights (TKW) of lines were measured in five trials (three environments in four growing seasons). Structure analysis based on 42 unlinked SSR loci indicated that the materials formed two sub-populations, viz., landraces and modern varieties. A large difference in TKW (7.08 g, P
ISSN:	1932-6203 1932-6203
DOI:	10.1371/journal.pone.0029432