A High-Density SNP and SSR Consensus Map Reveals Segregation Distortion Regions in Wheat
Joint Authors
Li, Chunlian
Bai, Guihua
Chao, Shiaoman
Wang, Zhonghua
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-10-27
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Segregation distortion is a widespread phenomenon in plant and animal genomes and significantly affects linkage map construction and identification of quantitative trait loci (QTLs).
To study segregation distortion in wheat, a high-density consensus map was constructed using single nucleotide polymorphism (SNP) and simple sequence repeat (SSR) markers by merging two genetic maps developed from two recombinant-inbred line (RIL) populations, Ning7840 × Clark and Heyne × Lakin.
Chromosome regions with obvious segregation distortion were identified in the map.
A total of 3541 SNPs and 145 SSRs were mapped, and the map covered 3258.7 cM in genetic distance with an average interval of 0.88 cM.
The number of markers that showed distorted segregation was 490 (18.5%) in the Ning7840 × Clark population and 225 (10.4%) in the Heyne × Lakin population.
Most of the distorted markers (630) were mapped in the consensus map, which accounted for 17.1% of mapped markers.
The majority of the distorted markers clustered in the segregation distortion regions (SDRs) on chromosomes 1B, 2A, 2B, 3A, 3B, 4B, 5A, 5B, 5D, 6B, 7A, and 7D.
All of the markers in a given SDR skewed toward one of the parents, suggesting that gametophytic competition during zygote formation was most likely one of the causes for segregation distortion in the populations.
American Psychological Association (APA)
Li, Chunlian& Bai, Guihua& Chao, Shiaoman& Wang, Zhonghua. 2015. A High-Density SNP and SSR Consensus Map Reveals Segregation Distortion Regions in Wheat. BioMed Research International،Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1056906
Modern Language Association (MLA)
Li, Chunlian…[et al.]. A High-Density SNP and SSR Consensus Map Reveals Segregation Distortion Regions in Wheat. BioMed Research International No. 2015 (2015), pp.1-10.
https://search.emarefa.net/detail/BIM-1056906
American Medical Association (AMA)
Li, Chunlian& Bai, Guihua& Chao, Shiaoman& Wang, Zhonghua. A High-Density SNP and SSR Consensus Map Reveals Segregation Distortion Regions in Wheat. BioMed Research International. 2015. Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1056906
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1056906