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Quantitative trait locus analysis for flowering-related traits using two F2 populations derived from crosses between Japanese common wheat cultivars and synthetic hexaploids.
Genes Genet Syst. 2015; 90(2):89-98.GG

Abstract

Flowering time is an important trait for Japanese wheat breeding. Aegilops tauschii, the D-genome donor of hexaploid wheat, is a useful resource to enlarge the D-genome diversity of common wheat. Previously, we identified flowering-related QTLs in F2 populations of synthetic hexaploid wheat lines between the tetraploid wheat cultivar Langdon and Ae. tauschii accessions. Here, to evaluate the usefulness of the early-flowering alleles from Ae. tauschii for Japanese wheat breeding, QTL analyses were conducted in two F2 populations derived from crosses between Japanese wheat cultivars and early-flowering lines of synthetic hexaploid wheat. Only two chromosomal regions controlling flowering-related traits were identified, on chromosomes 2DS and 5AL in the mapping populations, and no previously identified QTLs were found in the synthetic hexaploid lines. The strong effect of the 2DS QTL, putatively corresponding to Ppd-D1, was considered to hide any significant expression of other QTLs with small effects on flowering-related traits. When F2 individuals carrying Ae. tauschii-homozygous alleles around the 2DS QTL region were selected, the Ae. tauschii-derived alleles of the previously identified flowering QTLs partly showed an early-flowering phenotype compared with the Japanese wheat-derived alleles. Thus, some early-flowering alleles from Ae. tauschii may be useful for production of early-flowering Japanese wheat cultivars.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Nguyen AT
Graduate School of Agricultural Science, Kobe University.
Nishijima R
No affiliation info available
Kajimura T
No affiliation info available
Murai K
No affiliation info available
Takumi S
No affiliation info available

MeSH

Chromosome MappingChromosomes, PlantCrosses, GeneticFlowersGene ExpressionGenome, PlantHybridization, GeneticLod ScorePolyploidyQuantitative Trait LociTriticum

Pub Type(s)

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

Language

eng

PubMed ID

26399768

Citation

Nguyen, Anh T., et al. "Quantitative Trait Locus Analysis for Flowering-related Traits Using Two F2 Populations Derived From Crosses Between Japanese Common Wheat Cultivars and Synthetic Hexaploids." Genes & Genetic Systems, vol. 90, no. 2, 2015, pp. 89-98.
Nguyen AT, Nishijima R, Kajimura T, et al. Quantitative trait locus analysis for flowering-related traits using two F2 populations derived from crosses between Japanese common wheat cultivars and synthetic hexaploids. Genes Genet Syst. 2015;90(2):89-98.
Nguyen, A. T., Nishijima, R., Kajimura, T., Murai, K., & Takumi, S. (2015). Quantitative trait locus analysis for flowering-related traits using two F2 populations derived from crosses between Japanese common wheat cultivars and synthetic hexaploids. Genes & Genetic Systems, 90(2), 89-98. https://doi.org/10.1266/ggs.90.89
Nguyen AT, et al. Quantitative Trait Locus Analysis for Flowering-related Traits Using Two F2 Populations Derived From Crosses Between Japanese Common Wheat Cultivars and Synthetic Hexaploids. Genes Genet Syst. 2015;90(2):89-98. PubMed PMID: 26399768.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Quantitative trait locus analysis for flowering-related traits using two F2 populations derived from crosses between Japanese common wheat cultivars and synthetic hexaploids. AU - Nguyen,Anh T, AU - Nishijima,Ryo, AU - Kajimura,Tomonori, AU - Murai,Koji, AU - Takumi,Shigeo, PY - 2015/9/25/entrez PY - 2015/9/25/pubmed PY - 2016/6/25/medline SP - 89 EP - 98 JF - Genes & genetic systems JO - Genes Genet Syst VL - 90 IS - 2 N2 - Flowering time is an important trait for Japanese wheat breeding. Aegilops tauschii, the D-genome donor of hexaploid wheat, is a useful resource to enlarge the D-genome diversity of common wheat. Previously, we identified flowering-related QTLs in F2 populations of synthetic hexaploid wheat lines between the tetraploid wheat cultivar Langdon and Ae. tauschii accessions. Here, to evaluate the usefulness of the early-flowering alleles from Ae. tauschii for Japanese wheat breeding, QTL analyses were conducted in two F2 populations derived from crosses between Japanese wheat cultivars and early-flowering lines of synthetic hexaploid wheat. Only two chromosomal regions controlling flowering-related traits were identified, on chromosomes 2DS and 5AL in the mapping populations, and no previously identified QTLs were found in the synthetic hexaploid lines. The strong effect of the 2DS QTL, putatively corresponding to Ppd-D1, was considered to hide any significant expression of other QTLs with small effects on flowering-related traits. When F2 individuals carrying Ae. tauschii-homozygous alleles around the 2DS QTL region were selected, the Ae. tauschii-derived alleles of the previously identified flowering QTLs partly showed an early-flowering phenotype compared with the Japanese wheat-derived alleles. Thus, some early-flowering alleles from Ae. tauschii may be useful for production of early-flowering Japanese wheat cultivars. SN - 1880-5779 UR - https://www.unboundmedicine.com/medline/citation/26399768/Quantitative_trait_locus_analysis_for_flowering_related_traits_using_two_F2_populations_derived_from_crosses_between_Japanese_common_wheat_cultivars_and_synthetic_hexaploids_ DB - PRIME DP - Unbound Medicine ER -