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大兴安岭南麓东北马鹿种群遗传多样性分析
Authors
刘鑫鑫
张明海
李峥
郭金昊
Publication date
1 August 2023
Publisher
Editorial Department of Chinese Journal of Wildlife
Doi
Cite
Abstract
由于人类活动干扰及自然环境变化,东北马鹿(Cervus elaphus xanthopygus)的生存面临诸多问题。为掌握东北马鹿遗传多样性现状,进而为马鹿种群的健康状况提供评估依据,利用线粒体Cyt b基因和微卫星2种分子标记对内蒙古大兴安岭南麓高格斯台罕乌拉国家级自然保护区内的东北马鹿进行种群遗传多样性评估。结果表明:246份新鲜马鹿粪便隶属于182只个体;微卫星标记表明平均期望杂合度为(0.729±0.016),平均观测杂合度为(0.768±0.029),线粒体标记表明单倍型多样性为(0.347±0.035),核苷酸多样性为(0.248±0.025)%,种群存在较高比例的稀有单倍型(33.33%)。该地区马鹿种群遗传多样性处于中等偏低水平,未来可能存在单倍型丢失的风险。因此,为避免出现遗传多样性下降的风险,建议该地区加强对马鹿种群的管理与保护,并促进与邻近区域马鹿个体的基因交流
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