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Detection of genetic determinants that define the difference in photoperiod sensitivity of Triticum aestivum L. near-isogenic lines

Detection of genetic determinants that define the difference in photoperiod sensitivity of... Identification of genetic determinants that define different degrees of line sensitivity to the photoperiod was acomplished using near-isogenic lines of the soft hexaploid wheat Triticum aestivum L. using SSR markers and markers specific to the Vrn and Ppd genes. It was established that the Ppd-s line contains a dominant Ppd-D1a allele located on chromosome 2D. This allele is characterized by a large deletion in the gene promoter region. For two other lines (Ppd-m and Ppd-w), introgression of the Ppd-B1 gene on chromosome 2B was detected from the parental Sonora variety, which is insensitive to the day length; however, the previously described Ppd-B1a.1 allele was not found. Another polymorphism that can cause weak photoperiodic sensitivity, an increased copy number of the Ppd-B1 gene, was detected for these lines. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Detection of genetic determinants that define the difference in photoperiod sensitivity of Triticum aestivum L. near-isogenic lines

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References (32)

Publisher
Springer Journals
Copyright
Copyright © 2014 by Pleiades Publishing, Inc.
Subject
Biomedicine; Human Genetics; Animal Genetics and Genomics; Microbial Genetics and Genomics
ISSN
1022-7954
eISSN
1608-3369
DOI
10.1134/S102279541405007X
Publisher site
See Article on Publisher Site

Abstract

Identification of genetic determinants that define different degrees of line sensitivity to the photoperiod was acomplished using near-isogenic lines of the soft hexaploid wheat Triticum aestivum L. using SSR markers and markers specific to the Vrn and Ppd genes. It was established that the Ppd-s line contains a dominant Ppd-D1a allele located on chromosome 2D. This allele is characterized by a large deletion in the gene promoter region. For two other lines (Ppd-m and Ppd-w), introgression of the Ppd-B1 gene on chromosome 2B was detected from the parental Sonora variety, which is insensitive to the day length; however, the previously described Ppd-B1a.1 allele was not found. Another polymorphism that can cause weak photoperiodic sensitivity, an increased copy number of the Ppd-B1 gene, was detected for these lines.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Jul 24, 2014

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