Characterization of a landrace collection for Tomatiga de Ramellet (Solanum lycopersicum L.) from the Balearic Islands
Characterization of a landrace collection for Tomatiga de Ramellet (Solanum lycopersicum L.) from the Balearic Islands
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DOI：
10.1007/s10722-014-0096-3
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发表时间：
2014-08-01
影响因子：
2
通讯作者：
Cifre, J.
中科院分区：
文献类型：
--
作者：
Bota, J.;Conesa, M. A.;Cifre, J.
TomA tiga de Ramellet （Ramellet）是一种传统的长期储存番茄，来自地中海的马略卡岛、梅诺卡岛、伊维萨岛和福门特拉岛（巴利阿里群岛）。为了研究本地品种的表型和货架期变异，我们研究了142个以小穗品种为特征的材料和29个以其他品种为特征的材料。这171份材料构成了巴利阿里群岛大学（UIB）的新种质。结果表明，该品种在大多数农艺、形态和品质性状上具有广泛的差异，在果实形状、大小、果实组成和贮藏方面与其他地方品种明显不同。所有被评估的Ramellet材料都有成熟突变双匕首a (alcoba double dagger a, alc)，表明该突变在控制贮藏期中起重要作用。评价结果还显示，不同Ramellet品种贮藏时间的差异很大，表明果实大小和成分等其他性状可能在果实保存中起作用。观察到的小蠊种群内的变异与遗传变异的种群或地方种群一致。这一种质资源的建立将有助于防止这一地方物种的遗传侵蚀，并为今后的研究和育种提供资源。
TomA tiga de Ramellet (Ramellet) is a traditional long-storage tomato from the Mediterranean Islands of Mallorca, Menorca, Eivissa (Ibiza), and Formentera (Balearic Islands). To investigate the observed phenotypic and shelf life variability within local varieties, we studied 142 accessions characterized as Ramellet varieties, and 29 accessions representing other local varieties. The 171 accessions constitute a new germplasm collection at the University of Balearic Islands (UIB). The evaluation of the collection demonstrated wide variability in most agronomic, morphological and quality traits of Ramellet accessions and clearly differentiates them from other local varieties with respect to fruit shape, size, fruit composition, and fruit storage. All accessions of Ramellet evaluated have the ripening mutation alcoba double dagger a (alc), suggesting an important role for this variant in controlling shelf life. Results of evaluation also showed wide variability between the Ramellet accessions for storage time, suggesting that other traits like fruit size and composition may play a role in fruit conservation. Observed variation within the Ramellet accessions is consistent with a genetically variable population or landrace group. The establishment of this collection will help prevent genetic erosion of this local landrace group and constitute a resource for future investigation and breeding.