کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2833927 1164274 2013 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A comparative analysis of complete mitochondrial genomes among Hexapoda
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک بوم شناسی، تکامل، رفتار و سامانه شناسی
پیش نمایش صفحه اول مقاله
A comparative analysis of complete mitochondrial genomes among Hexapoda
چکیده انگلیسی


• Overview of current available mitochondrial genome features of Hexapoda is provided.
• The most broad taxon sampling of hexapods has been used to infer hexapod evolution.
• The phylogenetic analyses show the limits of hexapod mt-genome based phylogenies.
• Long-branched problematic orders and/or species are discussed.
• The general conflicts within the mt-genome data are highlighted.

With respect to bauplan radiation, species and taxa richness, hexapods have an unassailable lead. But still, the phylogenetic relationships among the orders and infraorders remain a matter of discussion. The rapidly increasing mitochondrial genome sequences from diverse insect species provide the opportunity to explore miscellaneous evolutionary questions in the superclass Hexapoda. A combined primary sequence analyses of the complete available data set has not yet been performed. Until now phylogenetic analyses of subsets of selected taxa resulted to strong supported topologies showing in some instances discrepancies between morphological and nuclear data. This circumstance started the discussion about the limits of complete mitochondrial genomes for inferring deep hexapod relationships. By using the hitherto densest taxon sampling of Hexapoda our analyses resulted in discrepancies to the current phylogenetic hypotheses based on morphological and nuclear data, e.g. monophyly of hexapods and some hexapods orders, e.g. Diptera, Hemiptera and Orthoptera. Nonetheless, compared to previously published studies that strongly support systematically erroneous groups using a sparse taxon sampling, our analyses had no support for theses discrepancies. Consequently, we highly recommend interpreting mt-genome based phylogenies with incomplete representation of major orders/taxa particularly for hexapods with cautions although the inferred relationships are highly supported.

Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Molecular Phylogenetics and Evolution - Volume 69, Issue 2, November 2013, Pages 393–403
نویسندگان
, ,