Beaks promote rapid morphological diversification along distinct evolutionary trajectories in labrid fishes (Eupercaria: Labridae)
Beaks promote rapid morphological diversification along distinct evolutionary trajectories in labrid fishes (Eupercaria: Labridae)
复制标题
喙促进拉科鱼类沿着不同的进化轨迹快速形态多样化（Eupercaria：Labridae）
DOI：
10.1093/evolut/qpad115
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发表时间：
2023
期刊：
影响因子：
3.3
通讯作者：
Connallon, ed., Tim
中科院分区：
文献类型：
--
作者：
Evans, Kory M.;Larouche, Olivier;Gartner, Samantha M.;Faucher, Rose E.;Dee, Sylvia G.;Westneat, Mark W.;Stayton, ed., Tristan;Connallon, ed., Tim
一些濑鱼（Eupercaria：Labridae）的上下颚拥有牙齿，这些牙齿已经合并成一个坚固耐用的喙，它们用来吃硬珊瑚骨骼，硬壳猎物和藻类，使许多这些物种在各自的海洋栖息地发挥重要的生态系统工程师的作用。虽然喙的生态影响是很好的理解，问题仍然是它的进化历史和这种创新对下游形态进化模式的影响。在这里，我们分析了三维颅骨形状数据的系统发育比较框架，并使用古气候建模重建205个物种的唇喙的演变。我们发现，濑鱼进化喙独立三次，一次在odacines和两次在太平洋和大西洋的鹦嘴鱼。我们发现，在thescarus+绿尾+海马（SCH）的鹦嘴鱼分支的形状演变的速度增加可能驱动的下颌关节的演变。古气候模拟表明，在中新世中期，鹦嘴鱼的SCH分支迅速形态多样化。我们假设，拥有一个喙在SCH分支加上有利的环境条件允许这些物种迅速形态多样化。
The upper and lower jaws of some wrasses (Eupercaria: Labridae) possess teeth that have been coalesced into a strong durable beak that they use to graze on hard coral skeletons, hard-shelled prey, and algae, allowing many of these species to function as important ecosystem engineers in their respective marine habitats. While the ecological impact of the beak is well understood, questions remain about its evolutionary history and the effects of this innovation on the downstream patterns of morphological evolution. Here we analyze 3D cranial shape data in a phylogenetic comparative framework and use paleoclimate modeling to reconstruct the evolution of the labrid beak across 205 species. We find that wrasses evolved beaks three times independently, once within odacines and twice within parrotfishes in the Pacific and Atlantic Oceans. We find an increase in the rate of shape evolution in theScarus+Chlorurus+Hipposcarus(SCH) clade of parrotfishes likely driven by the evolution of the intramandibular joint. Paleoclimate modeling shows that the SCH clade of parrotfishes rapidly morphologically diversified during the middle Miocene. We hypothesize that possession of a beak in the SCH clade coupled with favorable environmental conditions allowed these species to rapidly morphologically diversify.