Effect of VRN‐1 and PPD‐D1 genes on heading time in European bread wheat cultivars. Issue 1 (14th November 2014)

• Record Type: Journal Article
• Authors: Shcherban, Andrey B.; Börner, Andreas; Salina, Elena A.; Jung, C.
• Is Part Of: Plant breeding. Volume 134:Issue 1(2015)
• Page Start: 49
• Page End: 55
• Publication Date: 2014-11-14
• Subjects: Plant breeding -- Periodicals; 631.52
• DOI: 10.1111/pbr.12223
• Languages: English
• ISSNs: 0179-9541

Abstract

<abstract abstract-type="main" id="pbr12223-abs-0001"> <title>Abstract</title> <p>The variation of the vernalization (<italic>VRN‐1</italic>) and photoperiod (<italic>PPD‐1</italic>) genes offers opportunities to adjust heading time and to maximize yield in crop species. The effect of these genes on heading time was studied based on a set of 245 predominantly spring cultivars of bread wheat from the main eco‐geographical regions of Europe. The genotypes were screened using previously published diagnostic molecular markers for detecting the dominant or recessive alleles of the major <italic>VRN‐1</italic> loci such as: <italic>VRN‐A1</italic>, <italic> VRN‐B1</italic>, <italic> VRN‐D1</italic> as well as <italic>PPD‐D1</italic>. We found that 91% of spring wheat cultivars contain the photoperiod sensitive <italic>PPD‐D1b</italic> allele. Photoperiod insensitive <italic>PPD‐D1a</italic> allele has been found mainly in southern region of Europe. For this region the monogenic control of vernalization by <italic>VRN‐B1</italic> or <italic>VRN‐D1</italic> dominant alleles is common, whereas in the remaining part of Europe, the combination of photoperiod sensitive <italic>PPD‐D1b</italic> allele with dominant <italic>VRN‐A1</italic>, <italic> VRN‐B1</italic> and recessive <italic>vrn‐D1</italic> alleles represents the most frequent genotype. Also, we revealed a significantly later (5–8 days) heading of the monogenically dominant genotypes at <italic>VRN‐B1</italic> as compared to the digenic <italic>VRN‐A1 VRN‐B1</italic> genotypes.</p> </abstract>