关于Chisosa (Araneae,Pholcidae) 的注释,包括来自墨西哥的一种新物种的描述
Bernhard A Huber1, Guanliang Meng2, Alejandro Valdez-Mondragn3
1Zoological Research Museum Alexander Koenig; LIB; Bonn; Germany. b.huber@leibniz-lib.de.
Zootaxa
|March 13, 2024
概括
这项研究修订了蜘蛛属Chisosa,描述了一种新物种,并重新检查了现有的物种. 分子和形态学数据表明Chisosa与Physocyclus密切相关,挑战了以前的分类.
科学领域:
- 类动物学 类动物学 类动物学
- 纳税学是一种分类学.
- 进化生物学 进化生物学
背景情况:
- 蜘蛛属Chisosa,包括来自北美和加勒比地区的三种罕见物种,以前被放置在Ninetinae亚家族中.
- 最近的分子数据表明,Chisosa属于Arteminae亚家族,与北美属Physocyclus密切相关.
研究的目的:
- 描述一个来自墨西哥的新物种Chisosa (C. calapa sp. 这是新的一年.
- 重新评估Chisosa的形态学和遗传学位置,包括C. diluta和C. caquetio.
- 调查C. caquetio内的潜在物种极限和Serratochorus.的遗传关系.
主要方法:
- 详细的形态分析,包括超结构,Chisosa物种.
- 使用遗传距离 (CO1 K2P) 的分子遗传学分析.
- 与相关的属,Physocyclus和Serratochorus进行了比较分析.
主要成果:
- 一个新的物种,Chisosa calapa,是从墨西哥描述的.
- 以前支持Chisosa单的形态特征被发现是plesiomorphic,与Physocyclus共享.
- 基于尺寸缩小和短腿,发现Chisosa单种植物的形态学支持较弱.
- 在C. caquetio标本中观察到显著的遗传差异 (>14%CO1K2P),表明潜在的神秘物种.
- 多米尼加的珀属Serratochorus被认为是基因学上接近Chisosa的.
结论:
- 奇索萨在Arteminae中的位置,与Physocyclus密切相关,由分子和形态学数据支持.
- 奇索萨的单植物需要进一步调查,目前的证据很弱.
- 塞拉托科鲁斯属可能代表着一个值得进一步研究的相关血统.
- 在C. caquetio内的遗传多样性需要进一步的分类学研究来澄清物种界限.
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