Prevalence of VRN1 locus alleles among spring common wheat cultivars cultivated in Western Siberia

Ефремова, Т. Т.; Chumanova, E. V.; Трубачеева, Н. В.; Арбузова, В. С.; Белан, И. А.; Першина, Л. А.

doi:10.1134/s102279541601004x

Cited by 11 publications

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“…For the dominant Vrn-A1 gene, the presence of two alleles, Vrn-A1a and Vrn-Ab, was shown (Lysenko et al, 2014;Efremova et al, 2016;etc.). The last allele is rather rare in Siberian cultivars and in our study was found only in 2 % of all tested ones (see Supplementary Material).…”

Section: Discussionmentioning

confidence: 99%

Earliness and morphotypes of common wheat cultivars of Western and Eastern Siberia

et al. 2022

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The global and local climate changes determine the producing of highly-adaptive common (bread) wheat commercial cultivars of a new generation whose optimal earliness matches the climatic features of the territory where the cultivars are farmed. Principal component analysis involving our own and published data has been applied to investigate 98 commercial common wheat cultivars from Western and Eastern Siberia comparing their morphotypes; cultivar zoning time; length of the vegetation period; 1000-grain weight, and inheritance of spring growth habit. It demonstrated that the dominant Vrn gene polymorphism determining the spring growth habit of the Siberian cultivars was minimally polymorphic. In 75 % of the tested cultivars, the spring growth habit was controlled by digenic, namely dominant Vrn-A1 and Vrn-B1 genes. In 25 % of them (24 cultivars), spring growth habit is controlled by a single gene. In 19 and 5 of these cultivars spring growth habit is controlled by only one dominant gene, Vrn-B1 or Vrn-A1, respectively. In cv. Tulun 15, a trigenic control was identified. A conclusion about the optimality of the digenic control for the climatic conditions of both Western and Eastern Siberia has been confirmed. However, since none of the tested cultivars had the dominant Vrn-D1 gene typical of the regions of China and Central Asia bordering Siberia, it can be considered as an additional argument in favor of the European origin of Siberian common wheat cultivars. The revealed high frequency of the Vrn-B1c allele in the Western Siberian cultivars and the Vrn-B1a allele in the Eastern Siberian cultivars suggests their selectivity. The analysis also confirmed the dominance of red glume (ferrugineum, milturum) and awned spike (ferrugineum, erythrospermum) varieties in the Eastern Siberian cultivars, and white glume and awnedless spike (lutescens and albidum) ones in the Western Siberian cultivars. Small grain size cultivars are more typical of Eastern than Western Siberia. The retrospective analysis based on the cultivars' zoning time included in the "State Register for Selection Achievements Admitted for Usage" brought us to the conclusion that the earliness/lateness of modern Siberian commercial cultivars was not regionally but rather zonally-associated (taiga, subtaiga, forest-steppe and steppe zones).

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Section: Discussionmentioning

confidence: 99%

Earliness and morphotypes of common wheat cultivars of Western and Eastern Siberia

et al. 2022

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“…In particular, the varieties predominant in Russia and West Siberia have two dominant alleles: Vrn-A1a and Vrn-B1c or Vrn-B1a (Shcherban et al, 2012;Likhenko et al, 2014;Efremova et al, 2016). Thus, according to (Efremova et al, 2016), the Vrn-A1a allele, which has the greatest effect on the length of the growing period, occurs in about 80 % in the investigated varieties of West Siberia. The frequencies of the Vrn-B1c and Vrn-B1a alleles vary among accessions within 40-50 % and 30-50 %, respectively.…”

Section: Plant Gene Pool and Breedingmentioning

confidence: 91%

“…It was shown that varieties with two alleles, Vrn-A1a and Vrn-B1c, headed earlier than varieties with one dominant allele, Vrn-A1a or Vrn-B1c (Efremova et al, 2016). The durations of the main phases of development, which ultimately determine the duration of the period from shooting to heading, are shown in Fig.…”

Section: Raise Of Common Wheat Lines Of Winter Variety Bez1 With a Comentioning

confidence: 97%

“…The habit of most Russian varieties (including Siberia), Europe, North America and Australia is determined by two dominant genes VRN-A1 and VRN-B1. These varieties ripe earlier, and they are more productive than varieties with one VRN gene, because such allelic composition of the VRN-1 genes allows the plants to sustain late spring and early autumn frosts (Stelmakh, 1998;Goncharov, 2004;Efremova et al, 2016). Genotypes with the dominant VRN-D1 gene are advantageous in regions with extreme conditions such as drought and high temperature during grain filling (Stel makh, 1993).…”

Section: Plant Gene Pool and Breedingmentioning

confidence: 99%

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Development and investigation of common wheat lines of winter cultivar Bezostaya 1 with combinations of dominant alleles of VRN-1 loci

et al. 2019

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VRNgenes, determining wheat sensitivity to vernalization, are the main genetic system that defnes the duration of the entire growing period and the durations of the main organogenesis phases. To date, several alleles have been described forVRN-1loci, and allelespecifc primers have been developed that allow rapid identifcation of allelic spectra in common wheat varieties and lines. The unequal inﬂuence of diﬀerent alleles ofVRN-1loci on the duration of the growing period has also been shown; however, there is little information on the eﬀect of the combination of diﬀerent alleles on heading time. In developing genotypes having diﬀerent alleles of dominantVRNgenes on the base of the same genetic background, it is necessary to study the genetic eﬀects ofVRNgenes on the duration of the growing season and the individual developmental phases, as well as on productivity. Most varieties presently grown in Russia carry the dominant alleles of twoVRN-1genes:Vrn-A1aandVrn-B1aorVrn-B1c; thus, the task was to create lines combining the dominant alleles ofVrn-A1awithVrn-B1aandVrn-B1cagainst the genetic background of the winter variety Bezostaya 1 (Bez1Vrn-A1a/Vrn-B1aand Bez1Vrn-A1a/Vrn-B1c). Homozygous plants were isolated in the F2 generation by using known allelespecifc primers for theVrn-A1andVrn-B1loci. The durations of the tillering–frst node period, which is the key stage determining growing duration, and the period from shoots to heading were signifcantly reduced in lines with a combination of two dominant alleles ofVRN-1loci compared to isogenic lines of Bezostaya 1 with the dominant allelesVrn-B1aandVrn-B1c. The duration of these developmental phases also decreased in the obtained lines as compared to the isogenic line containing the dominantVrn-A1aallele, but the diﬀerences were not signifcant. No substantial diﬀerences were found in the duration of other growing phases in lines with two dominant alleles of theVRN-1loci as compared to isogenic lines of Bezostaya 1.

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“…Amongst the Japanese wheat cultivars, 83.8% possessed insensitivity for Ppd-D1a allele, but its frequency varied among genotypes from different geographical regions (Seki et al, 2011). Remarkably, the Vrn-A1b dominant allele is discovered to be widespread in wheat genotypes from Western Europe, North and South America (Efremova et al, 2016). Also, the dominant allele Vrn-A1a was widespread in spring cultivars cultivated in Northern Europe, western and central Europe but was least prevalent in southern Europe, while the Vrn-B1a allele is similarly represented in different regions in Europe and entirely dominates the Vrn-B1c allele primarily in Eastern European nations, such as Bulgaria, Romania (Shcherban et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Photoperiod and vernalization alleles and their combinations greatly affected phenological and agronomic traits in bread wheat under autumn and spring sowing conditions

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Serikbay

Song

et al. 2022

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The responses to temperature (vernalization) and day length (photoperiod) in wheat (Triticum aestivum L.) are entirely defined by allelic differences at the respective VRN-1 and PPD-1 loci. These two physiological factor greatly affect wheat phenology. Using molecular markers, a panel of 61 diverse bread wheat varieties were genotyped for VRN-1 and PPD-1 alleles, and the traits were evaluated under autumn and spring sowing conditions to investigate the impact of the alleles and their combinations on phenological stage, morphological traits, and yield traits. The results revealed that the earlier heading (HD), and flowering (FD) conferred by insensitive alleles for VRN-1 and PPD-1 genes was consistent regardless of the variation under the two sowing conditions. The effects of a single dominant allele of VRN-1 were similar, with an additive effects when combined. The effects of a single PPD-1 insensitive allele differed, with Ppd-D1a stronger than Ppd-B1a, and Ppd-A1a was the least, with an additive effects when combined. Secondly, varieties sown under spring condition recorded a larger flag leaf area when compared to those sown under autumn condition regardless of the single and combined influence at the VRN-1 and PPD-1 loci. When compared to other genes, PPD-D1 had a consistent and significant effect on flag leaf area, spike length, and plant height across both sowing conditions. Furthermore, the sensitive allele Ppd-D1b had larger biomass across both sowing conditions, but this did not translate into increased yield because the Ppd-D1a insensitive allele recorded higher yield. The impact of PPD-D1 gene on grain yield was evident across both sowing conditions. Overall, according to the findings of this study, VRN-1 and PPD-1 genes impact in modulating phenology stages, morphological, spike and yield traits was dependent on the sowing conditions and also on genetic background with the spring and insensitive alleles poised to be favored for selection.

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Prevalence of VRN1 locus alleles among spring common wheat cultivars cultivated in Western Siberia

Cited by 11 publications

References 25 publications

Earliness and morphotypes of common wheat cultivars of Western and Eastern Siberia

Earliness and morphotypes of common wheat cultivars of Western and Eastern Siberia

Development and investigation of common wheat lines of winter cultivar Bezostaya 1 with combinations of dominant alleles of VRN-1 loci

Photoperiod and vernalization alleles and their combinations greatly affected phenological and agronomic traits in bread wheat under autumn and spring sowing conditions

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