The association between the allelic state of Vp-1B and pre-harvest sprouting tolerance in red-seeded hexaploid triticale

Mikhail Divashuk, Nikolay Mayer, Pavel Kroupin, Valentina Rubets, Vladimir Pylnev, Nguen Tkhi Tkhu Lin, Alexandr Soloviev, Gennady Karlov

Center for Molecular Biotechnology Russian State Agrarian University–Moscow Timiryazev Agricultural Academy, Moscow, Russia.
Department of Genetics & Biotechnology Russian State Agrarian University–Moscow Timiryazev Agricultural Academy, Moscow, Russia.
Department of Plant Breeding Russian State Agrarian University–Moscow Timiryazev Agricultural Academy, Moscow, Russia.

DOI: 10.4236/ojgen.2012.21006                

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.

Keywords

Preharvest Sprouting (PHS); Hexaploid Triticale; VIVIPAROUS-1B; Seed Color

Conflicts of Interest

The authors declare no conflicts of interest.

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