کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2833944 1164275 2013 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Incorporating indels as phylogenetic characters: Impact for interfamilial relationships within Arctoidea (Mammalia: Carnivora)
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک بوم شناسی، تکامل، رفتار و سامانه شناسی
پیش نمایش صفحه اول مقاله
Incorporating indels as phylogenetic characters: Impact for interfamilial relationships within Arctoidea (Mammalia: Carnivora)
چکیده انگلیسی

Insertion and deletion events (indels) provide a suite of markers with enormous potential for molecular phylogenetics. Using many more indel characters than those in previous studies, we here for the first time address the impact of indel inclusion on the phylogenetic inferences of Arctoidea (Mammalia: Carnivora). Based on 6843 indel characters from 22 nuclear intron loci of 16 species of Arctoidea, our analyses demonstrate that when the indels were not taken into consideration, the monophyly of Ursidae and Pinnipedia tree and the monophyly of Pinnipedia and Musteloidea tree were both recovered, whereas inclusion of indels by using three different indel coding schemes give identical phylogenetic tree topologies supporting the monophyly of Ursidae and Pinnipedia. Our work brings new perspectives on the previously controversial placements among Arctoidea families, and provides another example demonstrating the importance of identifying and incorporating indels in the phylogenetic analyses of introns. In addition, comparison of indel incorporation methods revealed that the three indel coding methods are all advantageous over treating indels as missing data, given that incorporating indels produces consistent results across methods. This is the first report of the impact of different indel coding schemes on phylogenetic reconstruction at the family level in Carnivora, which indicates that indels should be taken into account in the future phylogenetic analyses.

Figure optionsDownload as PowerPoint slideHighlights
► We first report the impact of indels on the phylogeny of Arctoidea.
► Inclusion of indels give identical phylogenetic tree topologies supporting the monophyly of Ursidae and Pinnipedia.
► Three indel coding methods are all advantageous over treating indels as missing data.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Molecular Phylogenetics and Evolution - Volume 66, Issue 3, March 2013, Pages 748–756
نویسندگان
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