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首页> 外文期刊>Genetic Resources and Crop Evolution >Morphological variation in black cherry (Prunus serotina Ehrh.) associated with environmental conditions in Mexico and the United States
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Morphological variation in black cherry (Prunus serotina Ehrh.) associated with environmental conditions in Mexico and the United States

机译：黑樱桃（Prunus Serotina Ehrh）的形态变异与墨西哥和美国环境条件相关的

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Black cherries are native to North America and make up a complex of five morphologically different subspecies growing in significantly different niches. This study used 474 presence points, 19 climate parameters and altitude to: (1) describe climatic preference of subspecies, (2) associate the most discriminant bioclimatic variables with variation of 17 quantitative morphological descriptors and (3) estimate the potential effect of climate change in the distribution areas of the complex. Altitude and seven climatic parameters played a considerable role in the differentiation of subspecies (subsp.). Climate variability indicated that subsp. eximia, hirsuta and serotina are distributed in more humid and cold environments, while subsp. virens prefers drier and warmer environments. Subspecies capuli exhibited the greatest environmental heterogeneity. Morphological differences included longer, wider leaves and thicker fruit pedicel in subsp. capuli and shorter, smaller leaves in ssp. virens. Even though morphological variation associated with climate was relatively low, the study did show possible effects of climatic variability on morphology and distribution of the P. serotina complex and provided reference information that may be useful for an integrated description of its genetic resources. Climate change could cause genetic erosion due to the loss of suitable habitats. Studies on population genetics can increase understanding of the P. serotina complex and favor efficient strategic guidelines for use and conservation of these resources.
机译：黑樱桃原产于北美，并构成了五大形态学不同的亚种，其在显着不同的利基。本研究使用了474个存在点，19个气候参数和高度至：（1）描述亚种的气候偏好，（2）将最判别的生物胆能变量与17个定量形态学描述符的变异相关，（3）估计气候变化的潜在效果在复杂的分布区域。海拔高度和七个气候参数在亚种（SUMMP）的差异中起着相当大的作用。气候变异性表明亚木。 Eximia，Hirsuta和Serotina分布在更潮湿和寒冷的环境中，而SUBSP。 Virens更喜欢干燥干燥和温暖的环境。亚种Capuli表现出最大的环境异质性。形态学差异包括较长，较宽的叶片和较厚的果实果皮。 Capuli和更短，较小的叶片在SSP中。 virens。尽管与气候相关的形态变化相对较低，但研究表明气候变异性对P.Serotina复合物的形态和分布的可能影响，并提供了可用于其遗传资源的综合描述的参考信息。由于损失了合适的栖息地，气候变化可能导致遗传侵蚀。人口遗传学研究可以增加对血清血清菌的理解，并有利于这些资源的使用和保护的有效战略指导。

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