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GrainGenes Reference Report: MBR-34-1579

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Reference	MBR-34-1579
Title	A dense durum wheat x T. dicoccum linkage map based on SNP markers for the study of seed morphology.
Journal	Molecular Breeding
Year	2014
Volume	34
Pages	1579-1597
Author	Russo MA [ Show all 9 ]
Abstract	Durum wheat (Triticum turgidum L. var. durum) is a very important crop in the Mediterranean basin. Intense breeding activities are carried out to improve its productivity, quality, and resistance, and new genomic tools are essential to speed up the breeding progress. A segregating population of 136 recombinant inbred lines derived from a cross between the durum wheat cv. Simeto and the T. dicoccum accession Molise Colli was genotyped with the wheat 90k iSelect Infinium SNP assay. A linkage map was developed with 9,040 markers. Forty-five linkage groups were obtained, which covered all of the chromosomes. The map covered 2,879.3 cM, with a mean length of 205.6 cM per chromosome. The number of markers for each chromosome was from 418 (4B) to 978 (2B), with an average of 645.7. The parents of the genetic map differ according to several features, from traits linked to spike and kernel morphology to grain yield. Quantitative trait loci (QTL) analysis was performed for traits related to kernel morphology and thousand-kernel weight: six QTL were identified on chromosomes 1B, 2B, 3A, 3B, 4B and 7A, and 2 QTL on chromosomes 3B and 4B. Bioinformatic and synteny analyses with rice and Brachypodium genomes were performed based on the SNP sequences, with the identification of a candidate gene corresponding to a kinesin under the QTL located on chromosome 1B. The SNP-based Simeto × Molise Colli linkage map represents a useful tool to dissect out the genetic basis of traits of agronomic relevance for the genetic improvement of durum wheat.
External Databases	https://doi.org/10.1007/s11032-014-0181-5
QTL	[ Hide all but 1 of 12 ] QTL2008_2B-Russo_et_al._2014 QTL2015_7A-Russo_et_al._2014 QTL2007_2B-Russo_et_al._2014 QTL2006_1B-Russo_et_al._2014 QTL2009_3A-Russo_et_al._2014 QTL2005_1B-Russo_et_al._2014 QTL2016_7A-Russo_et_al._2014 QTL2012_3B-Russo_et_al._2014 QTL2010_3B-Russo_et_al._2014 QTL2013_4B-Russo_et_al._2014 QTL2011_3B-Russo_et_al._2014 QTL2014_4B-Russo_et_al._2014

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