TAMFT-3A and TAMFT-3B2 homeologs are associated with wheat preharvest sprouting.

Autor: Vetch JM; Dep. of Plant Sciences and Plant Pathology, Montana State Univ., 119 Plant Biosciences, Bozeman, MT, 59717-3150, USA.; Current address: Dep. of Research Centers, Montana State Univ., Conrad, MT, 59425, USA., Tillett BJ; Dep. of Plant Sciences and Plant Pathology, Montana State Univ., 119 Plant Biosciences, Bozeman, MT, 59717-3150, USA., Bruckner P; Dep. of Plant Sciences and Plant Pathology, Montana State Univ., 119 Plant Biosciences, Bozeman, MT, 59717-3150, USA., Martin JM; Dep. of Plant Sciences and Plant Pathology, Montana State Univ., 119 Plant Biosciences, Bozeman, MT, 59717-3150, USA., Marlowe K; Current address: Dep. of Research Centers, Montana State Univ., Conrad, MT, 59425, USA., Hooker MA; USDA-ARS, Washington State Univ., Pullman, USA., See DR; Crop and Soil Sciences, Washington State Univ. College of Agricultural Human and Natural Resource Sciences, 291B, Johnson Hall, Pullman, WA, 99164, USA.; USDA-ARS Wheat Health, Genetics and Quality Research Unit, Pullman, WA, 99164, USA., Giroux MJ; Dep. of Plant Sciences and Plant Pathology, Montana State Univ., 119 Plant Biosciences, Bozeman, MT, 59717-3150, USA.
Jazyk: angličtina
Zdroj: The plant genome [Plant Genome] 2022 Dec; Vol. 15 (4), pp. e20250. Date of Electronic Publication: 2022 Aug 16.
DOI: 10.1002/tpg2.20250
Abstrakt: The phenomenon of preharvest sprouting (PHS), caused by rain after physiological maturity and prior to harvest, negatively affects wheat (Triticum aestivum L.) production and end use. Investigating the genetics that control PHS resistance may result in increased control of seed dormancy. Multiple genes involved in the development of seed dormancy are associated with PHS. In this study, the TaMFT (3A, 3B1, 3B2, 3D), TaMKK3-4A, and TaVP1-3B genes were assessed for association with PHS in a double-haploid line (DHL) hard red winter wheat population derived from a BC 1 cross between the cultivars Loma and Warhorse, where Loma was the recurrent and PHS susceptible parent. The 162 BC 1 DHL lines were grown over two field seasons and PHS susceptibility was assessed by measuring PHS resistance in physiologically mature heads. The PHS variation was associated with the TaMFT-A and the B2 homeolog with Loma carrying mutant forms of each gene. No sequence variation between Loma and Warhorse was detected in the exons of the TaMFT-B1 and D homeologs. No association between PHS resistance and TaMKK3-4A or TaVp1-3B variation was observed, though Loma and Warhorse vary for TaMKK3-4A and TaVp1-3B mutations reported to be PHS associated. Previous research has shown TaMFT-3A as having a large impact on PHS resistance. In the current study, the TaMFT-3A and TaMFT-3B2 alleles each explained 14% of observed PHS variation. Markers for both TaMFT-3A and TaMFT-3B2 should be used in selecting for increased wheat dormancy and PHS resistance.
(© 2022 The Authors. The Plant Genome published by Wiley Periodicals LLC on behalf of Crop Science Society of America.)
Databáze: MEDLINE
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