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Utilice este identificador para citar o enlazar este documento: https://ria.asturias.es/RIA/handle/123456789/2173


Título: Use of Highly Discriminating Morphological Characters and Isozymes in the Study of Spanish Chestnut Cultivars
Autores: Pereira-Lorenzo, Santiago
Díaz-Hernández, María B.
Ramos-Cabrer, Ana M.
Palabras Claves: Castanea sativa
Classification
Genetic diversity
Morphology
Multivariate analysis
Fecha Edición: Nov-2006
Editor: American Society for Horticultural Science (ASHS)
Cita Bibliográfica: Pereira-Lorenzo, Santiago; Díaz-Hernández, María Belén; Ramos Cabrer, Ana María. Use of Highly Discriminating Morphological Characters and Isozymes in the Study of Spanish Chestnut Cultivars. Journal of the American Society for Horticultural Science. 2006; 131 (6): 770-779.
Resumen: Morphological characters (six traits) and isozymes (four systems, five loci) were used to discriminate between Spanish chestnut cultivars (Castanea sativa Mill.) from the Iberian Peninsula. A total of 701 accessions (representing 168 local cultivars) were analyzed from collections made between 1989 and 2003 in the main chestnut growing areas: 31 were from Andalucía (12 cultivars), 293 from Asturias (65 cultivars), 25 from Castilla-León (nine cultivars), four from Extremadura (two cultivars) and 348 from Galicia (80 cultivars). Data were synthesized using multivariate analysis, principal component analysis, and cluster analysis. A total of 152 Spanish cultivars were verified: 58 cultivars of major importance and 94 of minor importance, of which 18 had high intracultivar variation. Thirty-seven cultivars were clustered into 14 synonymous groups. Six of these were from Galicia, one from Castilla-León (El Bierzo), four from Asturias, one from Asturias and Castilla-León (El Bierzo), and two from Asturias, Castilla-León (El Bierzo), and Galicia. The chestnut cultivars from Galicia and Asturias were undifferentiated in genetic terms, indicating that they are not genetically isolated. Overall, chestnut cultivars from southern Spain showed the least variation. Many (58%) of Spanish cultivars produced more than 100 nuts/kg; removing this low market-value character will be a high priority. The data obtained will be of use in chestnut breeding programs in Spain and elsewhere.
URI: https://ria.asturias.es/RIA/handle/123456789/2173
ISSN: 0003-1062
Aparece en las Colecciones:Agroalimentación y Ganadería
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