The application of high-density genetic maps of rye for the detection of QTLs controlling morphological traitsReport as inadecuate




The application of high-density genetic maps of rye for the detection of QTLs controlling morphological traits - Download this document for free, or read online. Document in PDF available to download.

Journal of Applied Genetics

, Volume 55, Issue 1, pp 15–26

First Online: 03 December 2013Received: 03 March 2013Revised: 15 November 2013Accepted: 19 November 2013DOI: 10.1007-s13353-013-0186-5

Cite this article as: Myśków, B., Hanek, M., Banek-Tabor, A. et al. J Appl Genetics 2014 55: 15. doi:10.1007-s13353-013-0186-5

Abstract

The development of genetic maps is, nowadays, one of the most intensive research activities of plant geneticists. One of the major goals of genome mapping is the localisation of quantitative trait loci QTLs. This study was aimed at the identification of QTLs controlling morphological traits of rye and comparison of their localisation on genetic maps constructed with the use of genetically different germplasms. For QTL analyses, two high-density consensus maps of two populations RIL-S and RIL-M of recombinant inbred lines RIL were applied. Plant height Ph, length of spikes Sl and the number of spikelets per spike Sps were studied in both populations. Additionally, the number of kernels per spike under isolation Kps, the weight of kernels per spike Kw and thousand kernel weight Tkw were assessed in the RIL-M population. Except for Tkw, the majority of the traits were correlated to each other. The non-parametric Kruskal–Wallis K-W test and composite interval mapping CIM revealed 18-48 and 24-18 regions of rye chromosomes engaged in the determination of Ph, Sl and Sps in the RIL-S and RIL-M populations, respectively. An additional 18-15 QTLs controlling Kps, Kw and Tkw were detected on a map of the RIL-M population. A numerous group of QTLs detected via CIM remained in agreement with the genomic regions found when the K-W test was applied. Frequently, the intervals indicated by CIM were narrower.

KeywordsGenetic maps Morphology Yield structure QTL Rye Electronic supplementary materialThe online version of this article doi:10.1007-s13353-013-0186-5 contains supplementary material, which is available to authorized users.

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Author: Beata Myśków - Monika Hanek - Aneta Banek-Tabor - Robert Maciorowski - Stefan Stojałowski

Source: https://link.springer.com/



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