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Impact of the D genome and quantitative trait loci on quantitative traits in a spring durum by spring bread wheat cross.
Theor Appl Genet. 2015 Sep; 128(9):1799-811.TA

Abstract

The impact of the D genome and QTL in the A and B genomes on agronomic performance of hexaploid wheat and tetraploid durum was determined using novel recombinant inbred line populations derived from interploid crosses. Genetic differences between common hexaploid (6X) bread wheat (Triticum aestivum, 2n = 6x = 42, genome, AABBDD) and tetraploid (4X) durum wheat (T. turgidum subsp. durum, 2n = 4x = 28, genome, AABB) may exist due to effects of the D genome and allelic differences at loci in the A and B genomes. Previous work allowed identification of a 6X by 4X cross combination that resulted in a large number of fertile recombinant progeny at both ploidy levels. In this study, interspecific recombinant inbred line populations at both 4X and 6X ploidy with 88 and 117 individuals, respectively, were developed from a cross between Choteau spring wheat (6X) and Mountrail durum wheat (4X). The presence of the D genome in the 6X population resulted in increased yield, tiller number, kernel weight, and kernel size, as well as a decrease in stem solidness, test weight and seed per spike. Similar results were found with a second RIL population containing 152 lines from 18 additional 6X by 4X crosses. Several QTL for agronomic and quality traits were identified in both the 4X and 6X populations. Although negatively impacted by the lack of the D genome, kernel weight in Mountrail (4X) was higher than Choteau (6X) due to positive alleles from Mountrail on chromosomes 3B and 7A. These and other favorable alleles may be useful for introgression between ploidy levels.

Authors+Show Affiliations

Department of Plant Sciences and Plant Pathology, Montana State University, Bozeman, MT, 59717, USA.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

26037088

Citation

Kalous, J R., et al. "Impact of the D Genome and Quantitative Trait Loci On Quantitative Traits in a Spring Durum By Spring Bread Wheat Cross." TAG. Theoretical and Applied Genetics. Theoretische Und Angewandte Genetik, vol. 128, no. 9, 2015, pp. 1799-811.
Kalous JR, Martin JM, Sherman JD, et al. Impact of the D genome and quantitative trait loci on quantitative traits in a spring durum by spring bread wheat cross. Theor Appl Genet. 2015;128(9):1799-811.
Kalous, J. R., Martin, J. M., Sherman, J. D., Heo, H. Y., Blake, N. K., Lanning, S. P., Eckhoff, J. L., Chao, S., Akhunov, E., & Talbert, L. E. (2015). Impact of the D genome and quantitative trait loci on quantitative traits in a spring durum by spring bread wheat cross. TAG. Theoretical and Applied Genetics. Theoretische Und Angewandte Genetik, 128(9), 1799-811. https://doi.org/10.1007/s00122-015-2548-3
Kalous JR, et al. Impact of the D Genome and Quantitative Trait Loci On Quantitative Traits in a Spring Durum By Spring Bread Wheat Cross. Theor Appl Genet. 2015;128(9):1799-811. PubMed PMID: 26037088.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Impact of the D genome and quantitative trait loci on quantitative traits in a spring durum by spring bread wheat cross. AU - Kalous,J R, AU - Martin,J M, AU - Sherman,J D, AU - Heo,H-Y, AU - Blake,N K, AU - Lanning,S P, AU - Eckhoff,J L A, AU - Chao,S, AU - Akhunov,E, AU - Talbert,L E, Y1 - 2015/06/03/ PY - 2014/12/20/received PY - 2015/05/22/accepted PY - 2015/6/4/entrez PY - 2015/6/4/pubmed PY - 2015/12/22/medline SP - 1799 EP - 811 JF - TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik JO - Theor Appl Genet VL - 128 IS - 9 N2 - The impact of the D genome and QTL in the A and B genomes on agronomic performance of hexaploid wheat and tetraploid durum was determined using novel recombinant inbred line populations derived from interploid crosses. Genetic differences between common hexaploid (6X) bread wheat (Triticum aestivum, 2n = 6x = 42, genome, AABBDD) and tetraploid (4X) durum wheat (T. turgidum subsp. durum, 2n = 4x = 28, genome, AABB) may exist due to effects of the D genome and allelic differences at loci in the A and B genomes. Previous work allowed identification of a 6X by 4X cross combination that resulted in a large number of fertile recombinant progeny at both ploidy levels. In this study, interspecific recombinant inbred line populations at both 4X and 6X ploidy with 88 and 117 individuals, respectively, were developed from a cross between Choteau spring wheat (6X) and Mountrail durum wheat (4X). The presence of the D genome in the 6X population resulted in increased yield, tiller number, kernel weight, and kernel size, as well as a decrease in stem solidness, test weight and seed per spike. Similar results were found with a second RIL population containing 152 lines from 18 additional 6X by 4X crosses. Several QTL for agronomic and quality traits were identified in both the 4X and 6X populations. Although negatively impacted by the lack of the D genome, kernel weight in Mountrail (4X) was higher than Choteau (6X) due to positive alleles from Mountrail on chromosomes 3B and 7A. These and other favorable alleles may be useful for introgression between ploidy levels. SN - 1432-2242 UR - https://www.unboundmedicine.com/medline/citation/26037088/Impact_of_the_D_genome_and_quantitative_trait_loci_on_quantitative_traits_in_a_spring_durum_by_spring_bread_wheat_cross_ L2 - https://dx.doi.org/10.1007/s00122-015-2548-3 DB - PRIME DP - Unbound Medicine ER -