A 1BL/1RS translocation contributing to kernel length increase in three wheat recombinant inbred line populations

Shui Qin Li, Hua Ping Tang, Han Zhang, Yang Mu, Xiu Jin Lan and Jian Ma
Additional contact information
Shui Qin Li: Triticeae Research Institute, Sichuan Agricultural University, Chengdu, P.R. China
Hua Ping Tang: Triticeae Research Institute, Sichuan Agricultural University, Chengdu, P.R. China
Han Zhang: Triticeae Research Institute, Sichuan Agricultural University, Chengdu, P.R. China
Yang Mu: Triticeae Research Institute, Sichuan Agricultural University, Chengdu, P.R. China

Czech Journal of Genetics and Plant Breeding, 2020, vol. 56, issue 2, 43-51

Abstract: The 1BL/1RS wheat-rye translocation has been widely utilized in wheat genetic improvement and breeding programs. Our understanding on the effects of the 1BL/1RS translocation on wheat kernel size (e.g. length and width) is limited despite of numerous studies reporting about the effects on kernel weight. Here, we identified a wheat 1BL/1RS translocation line 88-1643 with higher kernel length (KL) using fluorescence in situ hybridization (FISH), genomic in situ hybridization (GISH) and molecular markers. To detect the possible role of the 1BL/1RS translocation in KL, kernel width (KW), and thousand-kernel weight (TKW), three recombinant inbred line (RIL) populations were constructed by crossing 88-1643 and three other wheat lines. As expected, the results showed that the values of KL in lines carrying 1RS were significantly higher than those carrying 1BS in three RIL populations at multiple environments, indicating that a major and stably expressed allele or gene responsible for increasing KL is most likely located on 1RS from 88-1643. Additionally, in one RIL population, the increased KL contributed significantly to the increase in TKW. Collectively, the 1BL/1RS translocation reported here is of interest to reveal molecular mechanism of the gene controlling KL and will be useful for improving wheat yield.

Keywords: correlation; multiple environments; validation populations; wheat yield (search for similar items in EconPapers)
Date: 2020
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://cjgpb.agriculturejournals.cz/doi/10.17221/79/2019-CJGPB.html (text/html)
http://cjgpb.agriculturejournals.cz/doi/10.17221/79/2019-CJGPB.pdf (application/pdf)
free of charge

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlcjg:v:56:y:2020:i:2:id:79-2019-cjgpb

DOI: 10.17221/79/2019-CJGPB

Access Statistics for this article

Czech Journal of Genetics and Plant Breeding is currently edited by Ing. Markéta Knížková, (Executive Editor)

More articles in Czech Journal of Genetics and Plant Breeding from Czech Academy of Agricultural Sciences
Bibliographic data for series maintained by Ivo Andrle ().