斯努克的进化历史:植物学,生物地理学和Centropomusomus属的多样化
Gabryele Malcher1, Thamires Oliveira1, Paulo Ronaldo Ferreira1
1Laboratório de Genética e Conservação, Instituto de Estudos Costeiros (IECOS), Universidade Federal do Pará, Bragança, Pará, Brazil.
PloS one
|October 9, 2025
概括
这项研究揭示了 (Centropomus spp.) 进化史,识别出四个主要群体起源于米奥生. 最近的普世-普世事件塑造了当前的多样性,受到巴拿马峡形成的影响.
科学领域:
- 鱼类学 鱼类学 鱼类学
- 进化生物学 进化生物学
- 分子遗传学分子遗传学
背景情况:
- 斯诺克斯 (Centropomus spp.) 是一个有趣的植物. 在美国沿海地区包括13种形态相似的物种.
- 了解它们的进化关系和分歧时间对于分类学至关重要.
研究的目的:
- 用多位点方法评估Centropomus属内的进化关系.
- 估计所有鱼类的分歧时间.
主要方法:
- 在斯努克物种的地理分布上分析了105个标本.
- 复位系遗传学分析以重建进化历史.
主要成果:
- 在Centropomus属内确定了四个主要的物种群,起源于米奥生 (约20万年前).
- 大多数多样化事件都发生在世-普世过渡时期.
- 在C. parallelus/C.中揭示了三个类型. 墨西哥人综合体,其中C. mexicanus可能是墨西哥湾的特有物种.
- 在C. parallelus中证实了两种谱系,并在C. viridis中确定了两种新谱系.
- 巴拿马半岛的形成,海平面的波动和息地适应是关键的进化驱动因素.
结论:
- 斯努克的进化历史与息地有关,河流环境中的祖先形式.
- 综合采样对于理解中心类动物进化和分类学修订至关重要.
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