西班牙安达卢西亚韦尔瓦省(huelva)欧亚野生葡萄种群核遗址的清查

C. Ocete, R. A. García, G. Lovicu, Álvaro Rodríguez-Miranda, J. Melón, M. Cantos, J. L. Fernández, M. Lara, F. Canales, J. Llompart, E. Rodríguez, C. Weiland, R. Rubio
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引用次数: 5

摘要

本文以2015-2017年西班牙西南部韦尔瓦省(Huelva) 21个野生葡萄种群为研究对象。描述了各居群沿河岸林的分布位置、该雌雄异株亚种的花型和花粉粒形态。对5种微发酵条件进行了分析,结果表明,葡萄酒的颜色强度在14.6 ~ 17.6之间,pH值在3.26 ~ 3.27之间,适合地中海气候条件下的红葡萄酒。同时还列出了“Condado de Huelva”注册名称原产地标志的配套植被和栽培品种清单。利用25个SSR位点对23个品种的遗传多样性进行了分析,结果表明,该品种的遗传多样性略高于伊比利亚品种。然而,观察到的杂合度明显低于韦尔瓦省野生种群的预期杂合度。这些野生葡萄群体的近交抑制表现为正F值。因此,保护这一独特的种质资源应该是维护该基因库遗传多样性过程的一部分,特别是考虑到西班牙没有特定的法律保护数字。
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An inventory of the relic eurasian wild grapevine populational nuclei in huelva province (andalusia, Spain)
This paper is focused on 21 relic wild grapevine populations within Huelva province (SW Europe, Spain) prospected between 2015-2017. Position of each population along river-bank forests, types of flower of this dioecious subspecies and morphology of the pollen grains were described. Analyses of five microvinifications were carried out, which indicate that the color intensity of the wines is between 14.6 and 17.6 and the pH between 3.26-3.27, which are suitable values for red wines under Mediterranean climatology. A list of the accompanying vegetation and the cultivated varieties in the "Condado de Huelva" Registered Appellation Origin Mark were also included. Moreover, the genetic diversity of 23 vines was characterized using 25 nuclear SSR loci, the results showed a slightly higher diversity than the one found in Iberian cultivars. However, the observed heterozygosity was significantly lower than the expected one for wild populations in the Huelva province. The inbreeding depression in these wild grape populations is suggested by the positive F values. Therefore, the conservation of this unique germplasm collection should be part of the process of maintaining the genetic diversity in this gene pool, especially, taking into account that no particular legal figure of preservation exists in Spain.
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