Database of European chestnut cultivars and definition of a core collection using simple sequence repeats |
| |
Authors: | Santiago Pereira-Lorenzo Ana María Ramos-Cabrer Teresa Barreneche Claudia Mattioni Fiorella Villani María Belén Díaz-Hernández Luís Miguel Martín Ángela Martín |
| |
Affiliation: | 1.Departamento de Producción Vegetal y Proyectos de Ingeniería, Escola Politécnica Superior, Campus de Lugo,Universidade de Santiago de Compostela,Lugo,Spain;2.UMR 1332 B.P. INRA,Univ. Bordeaux,Villenave d’Ornon,France;3.Consiglio Nazionale delle Ricerche,Istituto di Biologia Agroambientale e Forestale,Porano,Italy;4.Escuela Técnica Superior de Ingenieros Agrónomos y de Montes, Edificio Gregor Mendel (C-5), Campus de Rabanales,Universidad de Córdoba,Córdoba,Spain;5.Departamento de Ingeniería del Medio Agronómico y Forestal, Centro Universitario de Plasencia,Universidad de Extremadura,Plasencia,Spain |
| |
Abstract: | We have evaluated 271 accessions corresponding to 118 European cultivars, 96 from Spain, 16 from Italy, four from France and two from Portugal with the following objectives: (1) to provide a European database based on reference simple sequence repeats (SSRs) and (2) to define a core collection. A set of 24 highly polymorphic SSRs were used for the genetic analysis. Two main clusters were identified using a model-based Bayesian procedure, which correspond to Spanish and Italian cultivar clusters, with the latter showing a higher genetic diversity. An additional genetic substructure was observed among five different groups of cultivars. A core collection with a minimum of 37 cultivars was selected. We provided a database including 132 European accessions with unique genotypes evaluated with 24 SSRs as a reference for distinction, registering and traceability. Finally, we found that a core collection based on 14% of the total accessions conserves all allelic diversity. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|