TITLE:
The association between the allelic state of Vp-1B and pre-harvest sprouting tolerance in red-seeded hexaploid triticale
AUTHORS:
Mikhail Divashuk, Nikolay Mayer, Pavel Kroupin, Valentina Rubets, Vladimir Pylnev, Nguen Tkhi Tkhu Lin, Alexandr Soloviev, Gennady Karlov
KEYWORDS:
Preharvest Sprouting (PHS); Hexaploid Triticale; VIVIPAROUS-1B; Seed Color
JOURNAL NAME:
Open Journal of Genetics,
Vol.2 No.1,
March
2,
2012
ABSTRACT: The core collection of red-seeded winter hexaploid triticale with different pre-harvest sprouting (PHS) resistance has been evaluated for the allelic structure of the gene VIVIPAROUS-1B (Vp-1B) with STS molecular marker. The discovered structure of the collection was as follows: 50.0% and 41.7% of the collection carries Vp-1Bа and Vp-1Bc alleles, respectively, while 8,3% possesses both of them. As a result of the seed color estimation, the collection has been divided into two groups: with dark red seeds and light red seeds. The allele Vp-1Bc has appeared to be associated with PHS resistance while Vp-1Ba with PHS susceptibility in the triticale accessions with light red seeds only. The influence of the seed color and allelic state of Vp-1B on PHS resistance in triticale is discussed.