蝴蝶蓝:密歇根州中西部濒临灭绝的卡纳蓝蝶栖息地野生羽扇豆的种群遗传评估

IF 1 4区 生物学 Q3 PLANT SCIENCES Botany Pub Date : 2023-04-14 DOI:10.1139/cjb-2022-0107
C. Partridge, Priscilla A. Nyamai, A. Hoskins, Syndell R. Parks
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引用次数: 1

摘要

生境退化会对自然生态系统中的本地物种产生重大影响。在橡树和橡树松林的生态系统中,联邦濒危物种卡纳蓝蝶(Lycaeides melissa samuelis)与其寄主植物野生羽扇豆(Lupinus perennis L.)之间存在复杂的种间相互作用。招募野生羽扇豆对维持蝴蝶种群至关重要;然而,栖息地破碎化会阻碍这种补充。招募减少会导致孤立种群的遗传多样性降低,限制其对环境变化的适应潜力。本研究旨在了解密歇根州中部和西部野生羽扇豆群体的遗传多样性和群体结构。我们在大多数取样的种群中发现了显著的种群结构,只有两个站点彼此之间没有显著差异。在我们的研究区域内没有站点显示出统计上显著的近交水平。在我们的研究区域内还存在至少两个野生羽扇豆遗传集群,尽管这些群体之间存在显著的重叠,表明集群之间的遗传分化可能有限。
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Butterfly Blues: Population Genetic Assessment of Wild Lupine (Lupinus perennis L.) in Endangered Karner Blue Butterfly Habitat around Central-West Michigan
Habitat degradation can have significant effects on native species inhabiting natural ecosystems. Within oak barrens and oak-pine barrens ecosystems, there is a complex interspecies interaction between the federally endangered Karner blue butterfly (Lycaeides melissa samuelis) and its obligate host plant, wild lupine (Lupinus perennis L.). Recruitment of wild lupine is critical for maintaining butterfly populations; however, this recruitment can be impeded by habitat fragmentation. Reduced recruitment can result in low genetic diversity in isolated populations, limiting its adaptive potential to respond to environmental change. This study was aimed at understanding the genetic diversity and population structure of wild lupine populations throughout central and west Michigan. We identified significant population structure across most of the populations sampled, with only two sites not significantly different from each other. No sites within our study area displayed statistically significant levels of inbreeding. There are also at least two genetic clusters of wild lupine present within our study region, although there is significant overlap among these groups, indicating that genetic differentiation among clusters may be limited.
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来源期刊
Botany
Botany 生物-植物科学
CiteScore
2.20
自引率
9.10%
发文量
48
期刊介绍: Botany features comprehensive research articles and notes in all segments of plant sciences, including cell and molecular biology, ecology, mycology and plant-microbe interactions, phycology, physiology and biochemistry, structure and development, genetics, systematics, and phytogeography. It also publishes methods, commentary, and review articles on topics of current interest, contributed by internationally recognized scientists.
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