Phylogenetic and adaptive evolution of treeshrews (Scandentia)

IF 2.8 2区生物学 Q1 ZOOLOGY

Frontiers in Zoology Pub Date : 2026-09-19 DOI:10.1186/s12983-026-00633-2

Tongtong Gu,Handan Zhang,Rongxiang Mu,Huhui Qi,Zixin Lin,Wanlong Zhu

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引用次数: 0

Abstract

Abstract Background Treeshrews (Scandentia) are a phylogenetically distinctive order of small mammals distributed in South and Southeast Asia and southwestern China. Their position within Euarchonta, heterogeneous histories of island and mainland diversification, and emerging genomic resources make them informative for studying mammalian evolution. Results This review systematically synthesizes the latest progress in the phylogeny, biogeography, genetic diversity, and molecular mechanisms underlying adaptive evolution in treeshrews. We provide a comprehensive overview of their evolutionary history spanning interordinal relationships, intraordinal diversification, and intraspecific differentiation, as well as the genetic basis of specialized sensory, immune, and metabolic traits. Conclusions Key priorities for future research include comprehensive taxon sampling, chromosome-level genome assemblies and population resequencing, integrative taxonomic revision, explicit testing of alternative biogeographic models, and experimental validation of candidate adaptive genes. Integrating genomic, morphological, ecological, and functional evidence will help resolve species boundaries, reconstruct the temporal and spatial history of Scandentia, and clarify the molecular basis of adaptive evolution.

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树鼩（scandia）的系统发育与适应进化

树鼩（scandia）是分布在南亚、东南亚和中国西南部的一种具有系统发育特征的小型哺乳动物目。它们在原子亚纲中的地位、岛屿和大陆多样化的异质性历史以及新兴的基因组资源使它们为研究哺乳动物进化提供了信息。结果系统地综述了树鼩在系统发育、生物地理、遗传多样性和适应进化分子机制等方面的最新进展。我们提供了一个全面的概述他们的进化史跨越跨序关系，序内多样化，种内分化，以及特殊的感觉，免疫和代谢性状的遗传基础。未来研究的重点包括全面的分类单元采样、染色体水平的基因组组装和群体重测序、综合分类修订、替代生物地理模型的明确测试以及候选适应基因的实验验证。整合基因组、形态、生态和功能证据将有助于解决物种边界问题，重建Scandentia的时空历史，并阐明适应进化的分子基础。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Frontiers in Zoology ZOOLOGY-

CiteScore

4.90

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Frontiers in Zoology is an open access, peer-reviewed online journal publishing high quality research articles and reviews on all aspects of animal life. As a biological discipline, zoology has one of the longest histories. Today it occasionally appears as though, due to the rapid expansion of life sciences, zoology has been replaced by more or less independent sub-disciplines amongst which exchange is often sparse. However, the recent advance of molecular methodology into "classical" fields of biology, and the development of theories that can explain phenomena on different levels of organisation, has led to a re-integration of zoological disciplines promoting a broader than usual approach to zoological questions. Zoology has re-emerged as an integrative discipline encompassing the most diverse aspects of animal life, from the level of the gene to the level of the ecosystem. Frontiers in Zoology is the first open access journal focusing on zoology as a whole. It aims to represent and re-unite the various disciplines that look at animal life from different perspectives and at providing the basis for a comprehensive understanding of zoological phenomena on all levels of analysis. Frontiers in Zoology provides a unique opportunity to publish high quality research and reviews on zoological issues that will be internationally accessible to any reader at no cost. The journal was initiated and is supported by the Deutsche Zoologische Gesellschaft, one of the largest national zoological societies with more than a century-long tradition in promoting high-level zoological research.