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树的头盔形状和植物地理学Membracis mexicana

Marisol De-la-Mora¹, Daniel Pinero²

¹Escuela Nacional de Estudios Superiores Campus Juriquilla, Universidad Nacional Autónoma de México, Boulevard Villas del Mesón 3001, Querétaro 76230, Mexico.

|August 25, 2023

概括

墨西哥的表型和遗传变异揭示了与墨西哥生物地理省份的地理血统相关的独特头盔形态.

科学领域:

昆虫形态学和植物地理学
动物学和进化生物学的动物学和进化生物学.
生物地理和人口遗传学

背景情况:

墨西哥 (Hemiptera: Membracidae) 在墨西哥生物地理省份表现出现型变化.
以前的研究发现了不同的形式,但缺乏关于表型分布和遗传变异的清晰度.
了解这些变异对于物种分布和进化研究至关重要.

研究的目的:

量化墨西哥的表型和遗传变异.
确定生物地理区域对变异分布的影响.
为了澄清头盔形态和遗传血统之间的关系.

主要方法:

几何形态测量应用在307张照片上,使用19个地标来分析头盔形态.
使用从205个个体中测序的五个分子标记物的植物地理分析.
形态数据,遗传系和生物地理省份之间的相关性分析.

主要成果:

确定了三种不同的头盔形态:大/宽带小斑点,小/窄带大斑点,小/窄带小斑点.
发现了两个主要的遗传系:一个在墨西哥东南部,另一个在墨西哥西部.
西方血统与两个形态型相关 (大/宽和小/狭窄,有大斑点),而东南血统与小/狭窄,有小斑点形态型相关.

结论:

生物地理区域显著地影响了Membracis mexicana表型和遗传变异的分布.
头盔形态是基因谱系和物种内的地理分布的可靠指标.
这项研究阐明了墨西哥Membracis mexicana的物种内变异和植物地理模式.

关键词:

类动物 (membracidae) 是一个类动物.墨西哥墨西哥墨西哥墨西哥生物地理省份生物地理省份植物地理学植物地理学树上跳跃者树上跳跃者

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