Molecular ecology studies of species radiations: current research gaps, opportunities and challenges.

Details

Serval ID
serval:BIB_795ED44FB832
Type
Article: article from journal or magazin.
Publication sub-type
Review (review): journal as complete as possible of one specific subject, written based on exhaustive analyses from published work.
Collection
Publications
Title
Molecular ecology studies of species radiations: current research gaps, opportunities and challenges.
Journal
Molecular ecology
Author(s)
de la Harpe M., Paris M., Karger D.N., Rolland J., Kessler M., Salamin N., Lexer C.
ISSN
1365-294X (Electronic)
ISSN-L
0962-1083
Publication state
Published
Issued date
05/2017
Peer-reviewed
Oui
Volume
26
Number
10
Pages
2608-2622
Language
english
Notes
Publication types: Journal Article ; Review
Publication Status: ppublish
Abstract
Understanding the drivers and limits of species radiations is a crucial goal of evolutionary genetics and molecular ecology, yet research on this topic has been hampered by the notorious difficulty of connecting micro- and macroevolutionary approaches to studying the drivers of diversification. To chart the current research gaps, opportunities and challenges of molecular ecology approaches to studying radiations, we examine the literature in the journal Molecular Ecology and revisit recent high-profile examples of evolutionary genomic research on radiations. We find that available studies of radiations are highly unevenly distributed among taxa, with many ecologically important and species-rich organismal groups remaining severely understudied, including arthropods, plants and fungi. Most studies employed molecular methods suitable over either short or long evolutionary time scales, such as microsatellites or restriction site-associated DNA sequencing (RAD-seq) in the former case and conventional amplicon sequencing of organellar DNA in the latter. The potential of molecular ecology studies to address and resolve patterns and processes around the species level in radiating groups of taxa is currently limited primarily by sample size and a dearth of information on radiating nuclear genomes as opposed to organellar ones. Based on our literature survey and personal experience, we suggest possible ways forward in the coming years. We touch on the potential and current limitations of whole-genome sequencing (WGS) in studies of radiations. We suggest that WGS and targeted ('capture') resequencing emerge as the methods of choice for scaling up the sampling of populations, species and genomes, including currently understudied organismal groups and the genes or regulatory elements expected to matter most to species radiations.

Keywords
Biological Evolution, Ecology/trends, Genomics, Phylogeny, Sequence Analysis, DNA, diversification, genotyping by sequencing, radiation, speciation, target capture, whole-genome sequencing
Pubmed
Web of science
Open Access
Yes
Create date
28/03/2017 18:18
Last modification date
08/05/2019 20:42
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