Allelic composition in the Vrn-A1, Vrn-B1, and Vrn-B3 genes of double haploid lines of hexaploid triticale

Zaitseva, O. I.; Лемеш, В. А.

doi:10.1134/s1022795415070145

Cited by 2 publications

(2 citation statements)

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“…Vernalisation and Photoperiod genes are key factors of wheat development and some works have demonstrated that they may determine not only heading and flowering times but maturity time as well ( Shcherban, Emtseva & Efremova, 2012 ; Kamran et al, 2013 ; Zaitseva & Lemesh, 2015 ; Whittal et al, 2018 ).…”

Section: Discussionmentioning

confidence: 99%

Identification of genetic loci for early maturity in spring bread wheat using the association analysis and gene dissection

Kiseleva,

Leonova,

Ageeva

et al. 2023

PeerJ

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Background Early maturity in spring bread wheat is highly desirable in the regions where it enables the plants to evade high temperatures and plant pathogens at the end of the growing season. Methods To reveal the genetic loci responsible for the maturity time association analysis was carried out based on phenotyping for an 11-year period and high-throughput SNP genotyping of a panel of the varieties contrasting for this trait. The expression of candidate genes was verified using qPCR. The association between the SNP markers and the trait was validated using the biparental F2:3 population. Results Our data showed that under long-day conditions, the period from seedling to maturity is mostly influenced by the time from heading to maturity, rather than the heading time. The QTLs associated with the trait were located on 2A, 3B, 4A, 5B, 7A and 7B chromosomes with the 7BL locus being the most significant and promising for its SNPs accelerated the maturity time by about 9 days. Gene dissection in this locus detected a number of candidates, the best being TraesCS7B02G391800 (bZIP9) and TraesCS7B02G412200 (photosystem II reaction center). The two genes are predominantly expressed in the flag leaf while flowering. The effect of the SNPs was verified in F2:3 population and confirmed the association of the 4A, 5B and 7BL loci with the maturity time.

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Section: Discussionmentioning

confidence: 99%

Identification of genetic loci for early maturity in spring bread wheat using the association analysis and gene dissection

Kiseleva,

Leonova,

Ageeva

et al. 2023

PeerJ

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“…Возможно, ген Eps, определяющий скороспелость per se, является блоком полигенов (модификаторов) с малым эффектом, который идентифицируется методами генетического анализа. Разная скорость развития растений мягкой пшеницы и признаки продуктивности могут ассоциироваться с определенным сочетанием аллелей генов Ppd и Vrn (Potokina et al, 2012;Zaitseva, Lemesh, 2015).…”

Section: Introductionunclassified

Comparative analysis of the inheritance of a high development rate in the Rimax and Rico lines of spring bread wheat (Triticum aestivum L.)

Rigin

Зуев

Андреева

et al. 2021

Trudy po prikladnoy botanike, genetike i selektsii

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Background. Development of early-ripening spring bread wheat (Triticum aestivum L.) cultivars is an important task for Russian breeders. Knowledge of the genetics of ultraearly varieties – sources of valuable genes that determine an earlier-maturing type of plant development –will be used to work out methods for obtaining source material for breeding.Materials and methods. The ultra-early lines Rico (k65588, var. erythrospermum Koern.) and Rimax (k-67257, var. lutescens (Alef.) Mansf.), and cvs. ‘Max’ (k-57181, var. lutescens) and ‘Leningradskaya 6’ (k-64900, var. lutescens) were studied. Alleles of the Vrn and Ppd genes were identified by PCR according to known publications, and genomic DNA was isolated from 3-day-old seedlings by the CTAB method.Results. In the environments of Northwest Russia, the Rimax and Rico lines are characterized by the highest rate of development before heading among the spring wheat accessions from the VIR collection. In the Rimax and Rico genotypes, the Vrn-A1, Vrn-B1, Vrn-D1 and Ppd-D1 genes were found. Genotypes with different alleles of Ppd-D1 and Vrn-B1 were identified in the Rimax line. Under conditions of a long day (18 hours), in the population of F2 (F3 ) Rico × Rimax hybrids, the ratio of phenotypes with a high development rate to all others was observed as 1 : 15 (χ2 1: 15 = 0.64). Under a short day (12 hours), 5 clearly tested groups were identified in F2 with the ratio 1 : 4 : 6 : 4 : 1 (χ2 = 3.03; χ2 0.05 = 9.48), which indicates the manifestation of cumulative polymerization.Conclusion. Each of the Rimax and Rico lines has two pairs of independent duplicated genes that determine a high development rate. Under short-day conditions, these genes can interact like cumulative polymers. The Rimax and Rico lines, due to their high development rate, are valuable source material to be used in breeding for earliness.

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Allelic composition in the Vrn-A1, Vrn-B1, and Vrn-B3 genes of double haploid lines of hexaploid triticale

Cited by 2 publications

References 25 publications

Identification of genetic loci for early maturity in spring bread wheat using the association analysis and gene dissection

Identification of genetic loci for early maturity in spring bread wheat using the association analysis and gene dissection

Comparative analysis of the inheritance of a high development rate in the Rimax and Rico lines of spring bread wheat (Triticum aestivum L.)

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