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首页> 外文期刊>Genetic Resources and Crop Evolution >Homonymy, synonymy and hybrid misassignments in butternut (Juglans cinerea) and Japanese walnut (Juglans ailantifolia) nut cultivars
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Homonymy, synonymy and hybrid misassignments in butternut (Juglans cinerea) and Japanese walnut (Juglans ailantifolia) nut cultivars

机译：胡桃（Juglans cinerea）和日本胡桃（Juglans ailantifolia）坚果品种的同义，同义词和混合错误分配

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摘要

Butternut (Juglans cinerea), a tree native to North America and Japanese walnut (J. ailantifolia), native to Japan, form the basis for a small but growing specialty nut crop industry in the eastern United States and Canada. Over the last century, Canadian and American nut tree growers, academic plant breeders and nursery owners have clonally propagated cultivars and freely exchanged scion wood, creating the possibility of misidentification. To detect homonymy, synonymy and hybrid misassignments, we used 12 highly polymorphic microsatellites to genotype most of the butternut and Japanese walnut cultivars grown in the United States and Canada. Bayesian clustering and identity analyses revealed high levels of homonymies (genetically different cultivars with the same name) and synonymies (genetically identical cultivars with different names). Over 41% of the butternut cultivars and 45% of the Japanese walnut cultivars tested had homonymies, and a majority of the cultivars in both species also had synonymies. Further, 43 entries (~15%) identified by the contributors as either J. cinerea or J. ailantifolia were interspecific hybrids. Given our results we recommend that any comparative studies on the cultivars of either species or their hybrids include reference genetic fingerprints as a part of the study.
机译：胡桃木（Juglans cinerea）是北美原产的树，日本胡桃（J. ailantifolia）是日本原产的树，构成了美国东部和加拿大规模虽小但正在发展的特种坚果作物产业的基础。上个世纪，加拿大和美国的坚果树种植者，学术植物育种者和苗圃所有者无性繁殖了品种，并自由交换了接穗木，造成了误认的可能性。为了检测同音异义，同义异义和杂交错配，我们使用了12个高度多态的微卫星对在美国和加拿大种植的大多数胡桃和日本胡桃进行基因分型。贝叶斯聚类和同一性分析显示高水平的同音异义词（在遗传上名称相同的不同品种）和同义词（遗传在名称上相同的相同品种）。超过41％的胡桃品种和45％的日本核桃品种具有同名异物，并且两个物种中的大多数品种也具有同义物。此外，由贡献者鉴定为灰质葡萄球菌或蓝叶葡萄球菌的43个条目（约15％）是种间杂种。根据我们的研究结果，我们建议对任何物种或其杂种品种的比较研究都应将参考遗传指纹作为研究的一部分。

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