Revisiting the taxonomy of the Rattini tribe: a phylogeny-based delimitation of species boundaries.
Revisiting the taxonomy of the Rattini tribe: a phylogeny-based delimitation of species boundaries.
复制标题
DOI：
10.1186/1471-2148-10-184
复制
发表时间：
2010-06-18
影响因子：
3.4
通讯作者：
Michaux J
中科院分区：
文献类型：
--
作者：
Pagès M;Chaval Y;Herbreteau V;Waengsothorn S;Cosson JF;Hugot JP;Morand S;Michaux J
啮齿类动物被认为是至少60种人畜共患疾病的宿主，可能对人类健康构成严重威胁。在全球环境变化和人与动物流动性增加的背景下，病原体与潜在动物宿主和病媒之间的接触发生了变化，加大了疾病出现的风险。为了了解它们对疾病传播的影响，需要在特定水平上准确识别每种啮齿动物。在Muridae中，Rattini部落包括167种居住在东南亚的物种，这是生物多样性和新出现和重新出现的疾病的热点。该地区面临着影响生境、生物多样性和健康的日益增长的经济发展。大鼠物种已被证明是病原体的重要宿主，但仍然难以在特定水平上使用形态学标准识别。dna条形码方法似乎是鼠种鉴定的准确工具，但由于需要可靠地鉴定参考标本，其使用受到阻碍。在这项研究中，我们探索并强调了拉蒂尼部落目前分类学的局限性。我们使用DNA序列信息本身作为主要信息源来建立群体隶属关系和估计假定的物种边界。我们对122个大鼠样本的两个线粒体基因和一个核基因进行了测序，进行了系统发育重建。Pons及其同事（2006）的方法在没有事先预期的情况下确定了定义假定物种的祖先节点的位置，然后将其应用于我们的数据集。为了给每一个被认为是假定物种的集群一个合适的名字，我们回顾了文献中的信息，并根据古代DNA标准从博物馆的全型标本中获得了序列。使用最近开发的方法，这项研究成功地完善了最困难的哺乳动物群体之一的分类。大部分预计在该区域内的物种被检索到，但也指出了新的假定的物种界限，特别是在Berylmys和Rattus属内，这是未来分类学研究的方向。我们的研究为更好地调查东南亚啮齿动物传播的疾病奠定了基础，并说明了进化研究与健康和医学科学的相关性。
Rodents are recognized as hosts for at least 60 zoonotic diseases and may represent a serious threat for human health. In the context of global environmental changes and increasing mobility of humans and animals, contacts between pathogens and potential animal hosts and vectors are modified, amplifying the risk of disease emergence. An accurate identification of each rodent at a specific level is needed in order to understand their implications in the transmission of diseases. Among the Muridae, the Rattini tribe encompasses 167 species inhabiting South East Asia, a hotspot of both biodiversity and emerging and re-emerging diseases. The region faces growing economical development that affects habitats, biodiversity and health. Rat species have been demonstrated as significant hosts of pathogens but are still difficult to recognize at a specific level using morphological criteria. DNA-barcoding methods appear as accurate tools for rat species identification but their use is hampered by the need of reliable identification of reference specimens. In this study, we explore and highlight the limits of the current taxonomy of the Rattini tribe. We used the DNA sequence information itself as the primary information source to establish group membership and estimate putative species boundaries. We sequenced two mitochondrial and one nuclear genes from 122 rat samples to perform phylogenetic reconstructions. The method of Pons and colleagues (2006) that determines, with no prior expectations, the locations of ancestral nodes defining putative species was then applied to our dataset. To give an appropriate name to each cluster recognized as a putative species, we reviewed information from the literature and obtained sequences from a museum holotype specimen following the ancient DNA criteria. Using a recently developed methodology, this study succeeds in refining the taxonomy of one of the most difficult groups of mammals. Most of the species expected within the area were retrieved but new putative species limits were also indicated, in particular within Berylmys and Rattus genera, where future taxonomic studies should be directed. Our study lays the foundations to better investigate rodent-born diseases in South East Asia and illustrates the relevance of evolutionary studies for health and medical sciences.
登录
查看更多内容
影响因子：
9.8
作者：
Fontaneto, Diego;Herniou, Elisabeth A;Boschetti, Chiara;Caprioli, Manuela;Melone, Giulio;Ricci, Claudia;Barraclough, Timothy G
通讯作者：
Barraclough, Timothy G
影响因子：
3.9
作者：
IRWIN, DM;KOCHER, TD;WILSON, AC
通讯作者：
WILSON, AC
影响因子：
6.5
作者：
Asher, RJ;Hofreiter, M
通讯作者：
Hofreiter, M
DOI：
10.1196/annals.1428.064
发表时间：
2008-01-01
期刊：
ANIMAL BIODIVERSITY AND EMERGING DISEASES: PREDICTION AND PREVENTION
影响因子：
--
作者：
Henttonen, Heikki;Buchy, Philippe;Hugot, Jean-Pierre
通讯作者：
Hugot, Jean-Pierre
DOI：
10.4269/ajtmh.2003.69.519
发表时间：
2003-11-01
影响因子：
3.3
作者：
Coleman, RE;Monkanna, T;Lerdthusnee, K
通讯作者：
Lerdthusnee, K