进化创新加速了河豚及其近亲的形态多样化。

IF 3.1 2区 环境科学与生态学 Q2 ECOLOGY Evolution Pub Date : 2024-09-11 DOI:10.1093/evolut/qpae127
Emily M Troyer,Kory M Evans,Christopher Goatley,Matt Friedman,Giorgio Carnevale,Benjamin Nicholas,Matthew Kolmann,Katherine E Bemis,Dahiana Arcila
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引用次数: 0

摘要

进化创新在塑造地球生命多样性方面发挥了重要作用。然而,人们对这些创新是如何产生的,以及它们对形态多样化模式的下游影响仍然知之甚少。在这里,我们研究了进化创新对四齿鱼(河豚、箱鱼、海洋太阳鱼及其同类)性状多样化的影响。该目栖息地广泛,形态各异,包括多个科的牙齿融合成喙,因此是研究形态多样化的理想模型系统。利用 176 个现生和化石物种的三维几何形态计量数据,我们研究了头骨整合和新栖息地关联对创新进化的影响。强大的整合可能是快速性状进化和促进创新结构(如四齿喙)进化的必要条件。我们的研究结果表明,喙是在整个头骨高度保守的整合模式下产生的,这表明整合并没有限制四齿兽可用表型的范围。此外,我们还发现,鸟喙使四齿兽类能够多样化,进入新的生态位,而不受栖息地的限制。我们的研究结果表明,与进化创新相关的一般规则可能比以前认为的更加微妙。
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Evolutionary innovation accelerates morphological diversification in pufferfishes and their relatives.
Evolutionary innovations have played an important role in shaping the diversity of life on Earth. However, how these innovations arise, and their downstream effects on patterns of morphological diversification remain poorly understood. Here, we examine the impact of evolutionary innovation on trait diversification in tetraodontiform fishes (pufferfishes, boxfishes, ocean sunfishes, and allies). This order provides an ideal model system for studying morphological diversification owing to their range of habitats and divergent morphologies, including the fusion of the teeth into a beak in several families. Using three-dimensional geometric morphometric data for 176 extant and fossil species, we examine the effect of skull integration and novel habitat association on the evolution of innovation. Strong integration may be a requirement for rapid trait evolution and facilitating the evolution of innovative structures, like the tetraodontiform beak. Our results show that the beak arose in the presence of highly conserved patterns of integration across the skull, suggesting that integration did not limit the range of available phenotypes to tetraodontiforms. Furthermore, we find that beaks have allowed tetraodontiforms to diversify into novel ecological niches, irrespective of habitat. Our results suggest that general rules pertaining to evolutionary innovation may be more nuanced than previously thought.
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来源期刊
Evolution
Evolution 环境科学-进化生物学
CiteScore
5.00
自引率
9.10%
发文量
0
审稿时长
3-6 weeks
期刊介绍: Evolution, published for the Society for the Study of Evolution, is the premier publication devoted to the study of organic evolution and the integration of the various fields of science concerned with evolution. The journal presents significant and original results that extend our understanding of evolutionary phenomena and processes.
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