期刊
TREE GENETICS & GENOMES
卷 11, 期 6, 页码 -出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s11295-015-0934-2
关键词
Castanea sativa; Homonymous variety; Relationship; Traditional variety; Synonymnames; Varietal name
资金
- CastaneaREG (Evaluation, analyse et gestion de la Biodiversite au sein de lespece Castanea sativa [chataignier europeen] dans les regions de l'Espace Atlantique)
- Ministerio de Ciencia e Innovacion, Conservacion de los recursos geneticos de interes agroalimentario (Caracterizacion de la Coleccion de variedades gallegas de Castanea sativa para usos multiples) [RF2006-00024]
- European Agricultural Fund for Rural Development (EAFRD) in collaboration with the Protected Geographic Indication Castana de Galicia (Changing the Varietal Structure of Chestnut Orchards) [EAFRD 2010/2]
Traditional varieties are the basis of most chestnut production in Europe. Until recently, cultivation practices were transmitted orally, and trees in orchards were grafted using local varieties. Traditional methods are being replaced by controlled plant certification and nursery propagation. Starting materials must consequently be confirmed to be representative of desired cultivated varieties. Such an objective requires knowledge of the varietal structure of traditional orchards. This information may be acquired through the development of varietal inventories with names of cultivated varieties and their geographic dispersion followed by genotypic and phenotypic characterization of accessions representing target varieties. In this study, accessions of traditional varieties cultivated in orchards of Galicia (northwestern Iberian Peninsula) were genotyped with 10 nuclear microsatellites to identify different cultivated clones. Multilocus genotypes were obtained from 26 traditional varieties. The high number of closely related genotypes that were uncovered can be attributed to prolonged cultivation and hybridization between individuals constituting one or several landraces developed over centuries. These results were used to examine the adequacy of the conducted sampling for defining clones, assigning names and synonyms, and for acquiring information on various other aspects. Finally, terms useful for the study of traditional chestnut varieties were defined, and several tips for identifying traditional varieties were suggested. From the genetic point of view, a sweet chestnut traditional variety could be monoclonal, polyclonal, or a multiline variety; however, a commercial chestnut clone is monoclonal but it must also meet DUS conditions imposed on commercial varieties.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据