Your browser doesn't support javascript.
loading
Analysis of recombinant inbred line populations derived from wheat landraces to identify new genes for wheat stem sawfly resistance.
Varella, Andrea C; Weaver, David K; Blake, Nancy K; Hofland, Megan L; Heo, Hwa-Young; Cook, Jason P; Lamb, Peggy F; Jordan, Katherine W; Akhunov, Eduard; Chao, Shiaoman; Talbert, Luther E.
Afiliación
  • Varella AC; Department of Plant Sciences and Plant Pathology, Montana State University, Bozeman, MT, 59717, USA.
  • Weaver DK; Department of Land Resources and Environmental Sciences, Montana State University, Bozeman, MT, 59717, USA.
  • Blake NK; Department of Plant Sciences and Plant Pathology, Montana State University, Bozeman, MT, 59717, USA.
  • Hofland ML; Department of Land Resources and Environmental Sciences, Montana State University, Bozeman, MT, 59717, USA.
  • Heo HY; Department of Plant Sciences and Plant Pathology, Montana State University, Bozeman, MT, 59717, USA.
  • Cook JP; Department of Plant Sciences and Plant Pathology, Montana State University, Bozeman, MT, 59717, USA.
  • Lamb PF; Department of Research Centers, Montana State University, Bozeman, MT, 59717, USA.
  • Jordan KW; Department of Plant Pathology, Kansas State University, Manhattan, KS, 66506, USA.
  • Akhunov E; Department of Plant Pathology, Kansas State University, Manhattan, KS, 66506, USA.
  • Chao S; Cereal Crops Research Unit, USDA-ARS, Fargo, ND, 58102, USA.
  • Talbert LE; Department of Plant Sciences and Plant Pathology, Montana State University, Bozeman, MT, 59717, USA. ltalbert@montana.edu.
Theor Appl Genet ; 132(8): 2195-2207, 2019 Aug.
Article en En | MEDLINE | ID: mdl-31049630
Wheat landrace accessions were chosen from areas of the world with historical European wheat stem sawfly (Cephus pygmaeus L.) selection pressure to develop six recombinant inbred line (RIL) populations. Molecular maps were constructed, and resistance due to antibiosis and antixenosis was assessed at sites in Montana naturally infested by Cephus cinctus Norton, the wheat stem sawfly (WSS). Novel QTLs were identified along with QTL previously identified in elite germplasm. A newly identified QTL on chromosome 1B provided a new source for pith-filled solid stems. An allele for resistance on chromosome 4A unrelated to solid stems was identified in four of the six RIL populations. A landrace from Turkey, PI 166471, contained alleles at three QTLs causing high levels of larval mortality. None of the QTLs were related to stem solidness, but their combined effect provided resistance similar to that observed in a solid-stemmed check cultivar. These results show the utility of genetic populations derived from geographically targeted landrace accessions to identify new alleles for insect resistance. New PCR-based molecular markers were developed for introgression of novel alleles for WSS resistance into elite lines. Comparison of results with previous analysis of elite cultivars addresses changes in allele frequencies during the wheat breeding process.
Asunto(s)
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Enfermedades de las Plantas / Recombinación Genética / Triticum / Tallos de la Planta / Resistencia a la Enfermedad / Himenópteros / Endogamia Tipo de estudio: Prognostic_studies Límite: Animals Idioma: En Revista: Theor Appl Genet Año: 2019 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Alemania
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Enfermedades de las Plantas / Recombinación Genética / Triticum / Tallos de la Planta / Resistencia a la Enfermedad / Himenópteros / Endogamia Tipo de estudio: Prognostic_studies Límite: Animals Idioma: En Revista: Theor Appl Genet Año: 2019 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Alemania