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Author Simonov, A. V. ♦ Pshenichnikova, T. A. ♦ Lapochkina, I. F. ♦ Watanabe, N.
Source SpringerLink
Content type Text
Publisher Pleiades Publishing
File Format PDF
Copyright Year ©2017
Language English
Subject Domain (in DDC) Technology ♦ Medicine & health
Subject Keyword bread wheat ♦ genetic analysis ♦ hybridization ♦ genes for the spike shape ♦ spike speltoidy and compactness ♦ Human Genetics
Abstract The spike parameters of hexaploid wheats from the genus Triticum L. are determined by the major genes and play an important role in systematics. Having a strong pleiotropic effect, they also have practical importance. In this work, the interaction of the dominant genes Q $^{ S }$ and Q with the dominant gene C17648 determining the shape of the spike was investigated. The gene Q is located in the 5AL chromosome and determines the formation of the elongated lax spike in the T. spelta L. species. The homoeoallelic gene Q $^{ S }$ introgressed into bread wheat from Aegilops speltoides Tausch. and causing the formation of the speltoid spike is also located in the 5AL chromosome of the 84/98$^{w}$ line. The C $^{17648}$ gene is analogous in the phenotypic manifestation to the C gene determining the formation of a dense short spike on a short culm as in T. compactum Host. It was mapped to the 5AL chromosome in the bread wheat line ANBW-5A and the donor of the gene was a mutant of durum wheat. In the present work, the spike length, spikelet number, index of spike density, and stem length were studied in F$_{1}$, F$_{2}$, and F$_{3}$ of three different hybrid populations. It was shown for the first time that the C $^{17648}$ gene is epistatic to the dominant genes Q $^{ S }$ and Q. It was manifested in the formation of compact spikes in F$_{1}$ hybrids and in the numerical predominance of plants with a compact spike in F$_{2}$. At the same time, the gene C $^{17648}$ showed a smaller effect on stem length and did not affect the number of spikelets. Using the genetic analysis, it was found that genes Q $^{ S }$ and Q are independently inherited from gene C $^{17648}$, although a strong link was observed between the Q $^{ S }$ or Q and b1 gene.
ISSN 20790597
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2017-03-07
Publisher Place Moscow
e-ISSN 20790600
Journal Russian Journal of Genetics: Applied Research
Volume Number 7
Issue Number 1
Page Count 8
Starting Page 21
Ending Page 28

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Source: SpringerLink