Abstract:
BACKGROUND:Dung beetles (subfamily Scarabaeinae) are popular model organisms in ecology and developmental biology, and for the last two decades they have experienced a systematics renaissance with the adoption of modern phylogenetic approaches. Within this period 16 key phylogenies and numerous additional studies with limited scope have been published, but higher-level relationships of this pivotal group of beetles remain contentious and current classifications contain many unnatural groupings. The present study provides a robust phylogenetic framework and a revised classification of dung beetles. RESULTS:We assembled the so far largest molecular dataset for dung beetles using sequences of 8 gene regions and 547 terminals including the outgroup taxa. This dataset was analyzed using Bayesian, maximum likelihood and parsimony approaches. In order to test the sensitivity of results to different analytical treatments, we evaluated alternative partitioning schemes based on secondary structure, domains and codon position. We assessed substitution models adequacy using Bayesian framework and used these results to exclude partitions where substitution models did not adequately depict the processes that generated the data. We show that exclusion of partitions that failed the model adequacy evaluation has a potential to improve phylogenetic inference, but efficient implementation of this approach on large datasets is problematic and awaits development of new computationally advanced software. In the class Insecta it is uncommon for the results of molecular phylogenetic analysis to lead to substantial changes in classification. However, the results presented here are congruent with recent morphological studies and support the largest change in dung beetle systematics for the last 50 years. Here we propose the revision of the concepts for the tribes Deltochilini (Canthonini), Dichotomiini and Coprini; additionally, we redefine the tribe Sisyphini. We provide and illustrate synapomorphies and diagnostic characters supporting the new concepts to facilitate diagnosability of the redefined tribes. As a result of the proposed changes a large number of genera previously assigned to these tribes are now left outside the redefined tribes and are treated as incertae sedis. CONCLUSIONS:The present study redefines dung beetles classification and gives new insight into their phylogeny. It has broad implications for the systematics as well as for various ecological and evolutionary analyses in dung beetles.
journal_name
BMC Evol Bioljournal_title
BMC evolutionary biologyauthors
Tarasov S,Dimitrov Ddoi
10.1186/s12862-016-0822-xsubject
Has Abstractpub_date
2016-11-29 00:00:00pages
257issue
1issn
1471-2148pii
10.1186/s12862-016-0822-xjournal_volume
16pub_type
杂志文章abstract:BACKGROUND:The genus Rattus is highly speciose and has a complex taxonomy that is not fully resolved. As shown previously there are two major groups within the genus, an Asian and an Australo-Papuan group. This study focuses on the Australo-Papuan group and particularly on the Australian rats. There are uncertainties r...
journal_title:BMC evolutionary biology
pub_type: 杂志文章
doi:10.1186/1471-2148-10-375
更新日期:2010-12-02 00:00:00
abstract:BACKGROUND:Sexual selection has initially been thought to occur exclusively at the precopulatory stage in terms of contests among males and female mate choice, but research over the last four decades revealed that it often continues after copulation through sperm competition and cryptic female choice. However, studying...
journal_title:BMC evolutionary biology
pub_type: 杂志文章
doi:10.1186/1471-2148-14-148
更新日期:2014-06-30 00:00:00
abstract:BACKGROUND:The self-fertile hermaphrodite worm C. elegans is an important model organism for biology, yet little is known about the origin and persistence of the self-fertilizing mode of reproduction in this lineage. Recent work has demonstrated an extraordinary degree of selfing combined with a high deleterious mutati...
journal_title:BMC evolutionary biology
pub_type: 杂志文章
doi:10.1186/1471-2148-8-125
更新日期:2008-04-30 00:00:00
abstract:BACKGROUND:Refugial populations in Quaternary glaciations are critical to understanding the evolutionary history and climatic interactions of many extant species. Compared with the well-studied areas of Europe and Northern America, refugia of species in eastern Asia remain largely unknown. Here, we investigated the phy...
journal_title:BMC evolutionary biology
pub_type: 杂志文章
doi:10.1186/s12862-018-1269-z
更新日期:2018-10-11 00:00:00
abstract:BACKGROUND:Peninsulas often harvest high genetic diversity through repeated southward migrations of species during glacial maxima. Studies addressing within-species evolutionary responses to climate fluctuations in northeast Asia are limited compared to other regions of the world, and more so in the Korean Peninsula. I...
journal_title:BMC evolutionary biology
pub_type: 杂志文章
doi:10.1186/s12862-019-1347-x
更新日期:2019-01-14 00:00:00
abstract:BACKGROUND:Hybridization between incipient species is expected to become progressively limited as their genetic divergence increases and reproductive isolation proceeds. Amphibian radiations and their secondary contact zones are useful models to infer the timeframes of speciation, but empirical data from natural system...
journal_title:BMC evolutionary biology
pub_type: 杂志文章
doi:10.1186/s12862-015-0385-2
更新日期:2015-08-08 00:00:00
abstract:BACKGROUND:The population genetic structure of a parasite, and consequently its ability to adapt to a given host, is strongly linked to its own life history as well as the life history of its host. While the effects of parasite life history on their population genetic structure have received some attention, the effect ...
journal_title:BMC evolutionary biology
pub_type: 杂志文章
doi:10.1186/1471-2148-14-18
更新日期:2014-01-30 00:00:00
abstract:BACKGROUND:Species are considered the fundamental unit in many ecological and evolutionary analyses, yet accurate, complete, accessible taxonomic frameworks with which to identify them are often unavailable to researchers. In such cases DNA sequence-based species delimitation has been proposed as a means of estimating ...
journal_title:BMC evolutionary biology
pub_type: 杂志文章
doi:10.1186/1471-2148-12-196
更新日期:2012-10-02 00:00:00
abstract:BACKGROUND:Hymenoptera that mass-provision their offspring have evolved elaborate antimicrobial strategies to ward off fungal infestation of the highly nutritive larval food. Females of the Afro-European Philanthus triangulum and the South American Trachypus elongatus (Crabronidae, Philanthinae) embalm their prey, para...
journal_title:BMC evolutionary biology
pub_type: 杂志文章
doi:10.1186/s12862-015-0565-0
更新日期:2015-12-21 00:00:00
abstract:BACKGROUND:RNA editing is a post-transcriptional process that, in seed plants, involves a cytosine to uracil change in messenger RNA, causing the translated protein to differ from that predicted by the DNA sequence. RNA editing occurs extensively in plant mitochondria, but large differences in editing frequencies are f...
journal_title:BMC evolutionary biology
pub_type: 杂志文章
doi:10.1186/1471-2148-10-349
更新日期:2010-11-11 00:00:00
abstract:BACKGROUND:As global change and anthropogenic pressures continue to increase, conservation and management increasingly needs to consider species' potential to adapt to novel environmental conditions. Therefore, it is imperative to characterise the main selective forces acting on ecosystems, and how these may influence ...
journal_title:BMC evolutionary biology
pub_type: 杂志文章
doi:10.1186/s12862-020-01679-4
更新日期:2020-09-16 00:00:00
abstract:BACKGROUND:Population genetics theory predicts an important role of differences in the effective population size (N e ) among species on shaping the accumulation of functional mutations by regulating the selection efficiency. However, this correlation has never been tested in domesticated animals. RESULTS:Here, we syn...
journal_title:BMC evolutionary biology
pub_type: 杂志文章
doi:10.1186/s12862-018-1120-6
更新日期:2018-01-19 00:00:00
abstract:BACKGROUND:In addition to providing phylogenetic relationships, tree making procedures such as parsimony and maximum likelihood can make specific predictions of actual historical sequences. Resurrection of such sequences can be used to understand early events in evolution. In the case of RNA, the nature of parsimony is...
journal_title:BMC evolutionary biology
pub_type: 杂志文章
doi:10.1186/1471-2148-11-218
更新日期:2011-07-22 00:00:00
abstract:BACKGROUND:Phylactolaemata is commonly regarded the earliest branch within Bryozoa and thus the sister group to the other bryozoan taxa, Cyclostomata and Gymnolaemata. Therefore, the taxon is important for the reconstruction of the bryozoan morphological ground pattern. In this study the myoanatomy of Pectinatella magn...
journal_title:BMC evolutionary biology
pub_type: 杂志文章
doi:10.1186/s12862-017-1068-y
更新日期:2017-11-07 00:00:00
abstract:BACKGROUND:Genome degradation of host-restricted mutualistic endosymbionts has been attributed to inactivating mutations and genetic drift while genes coding for host-relevant functions are conserved by purifying selection. Unlike their free-living relatives, the metabolism of mutualistic endosymbionts and endosymbiont...
journal_title:BMC evolutionary biology
pub_type: 杂志文章
doi:10.1186/s12862-017-0947-6
更新日期:2017-04-14 00:00:00
abstract:BACKGROUND:Socially cued anticipatory plasticity (SCAP) has been proposed as a widespread mechanism of adaptive life-history shifts in semelparous species with extreme male mating investment. Such mating systems evolved several times independently in spiders and male reproductive success should critically depend on tim...
journal_title:BMC evolutionary biology
pub_type: 杂志文章
doi:10.1186/s12862-016-0736-7
更新日期:2016-08-26 00:00:00
abstract:BACKGROUND:Plant genomes contain a high proportion of duplicated genes as a result of numerous whole, segmental and local duplications. These duplications lead up to the formation of gene families, which are the usual material for many evolutionary studies. However, all characterized genomes include single-copy (unique...
journal_title:BMC evolutionary biology
pub_type: 杂志文章
doi:10.1186/1471-2148-8-280
更新日期:2008-10-10 00:00:00
abstract:BACKGROUND:Molecular studies have revealed that many putative 'species' are actually complexes of multiple morphologically conservative, but genetically divergent 'cryptic species'. In extreme cases processes such as non-adaptive diversification (speciation without divergent selection) could mask the existence of ancie...
journal_title:BMC evolutionary biology
pub_type: 杂志文章
doi:10.1186/1471-2148-10-386
更新日期:2010-12-15 00:00:00
abstract:BACKGROUND:Males of many species adjust their reproductive tactics with regard to their condition and status. For example, large males may develop weapons and fight for access to females, whereas small or undernourished males do not express costly weapons or ornaments and sneak copulations. Different condition-dependen...
journal_title:BMC evolutionary biology
pub_type: 杂志文章
doi:10.1186/1471-2148-7-114
更新日期:2007-07-10 00:00:00
abstract:BACKGROUND:Prions are transmissible, propagating alternative states of proteins, and are usually made from the fibrillar, beta-sheet-rich assemblies termed amyloid. Prions in the budding yeast Saccharomyces cerevisiae propagate heritable phenotypes, uncover hidden genetic variation, function in large-scale gene regulat...
journal_title:BMC evolutionary biology
pub_type: 杂志文章
doi:10.1186/s12862-016-0594-3
更新日期:2016-01-25 00:00:00
abstract:BACKGROUND:Adenosine deaminase enzymes of the ADAR family are conserved in metazoans. They convert adenine into inosine in dsRNAs and thus alter both structural properties and the coding potential of their substrates. Acting on exogenous dsRNAs, ADAR1 exerts a pro- or anti-viral role in vertebrates and Drosophila. RES...
journal_title:BMC evolutionary biology
pub_type: 杂志文章
doi:10.1186/s12862-019-1472-6
更新日期:2019-07-23 00:00:00
abstract:BACKGROUND:Horizontal gene transfer plays an important role in evolution because it sometimes allows recipient lineages to adapt to new ecological niches. High genes transfer frequencies were inferred for prokaryotic and early eukaryotic evolution. Does horizontal gene transfer also impact phylogenetic reconstruction o...
journal_title:BMC evolutionary biology
pub_type: 杂志文章
doi:10.1186/1471-2148-7-45
更新日期:2007-03-21 00:00:00
abstract:BACKGROUND:Molecular clock dates, which place the origin of animal phyla deep in the Precambrian, have been used to reject the hypothesis of a rapid evolutionary radiation of animal phyla supported by the fossil record. One possible explanation of the discrepancy is the potential for fast substitution rates early in th...
journal_title:BMC evolutionary biology
pub_type: 杂志文章
doi:10.1186/1471-2148-7-95
更新日期:2007-06-26 00:00:00
abstract:BACKGROUND:The White Spot Syndrome Virus (WSSV) is an important pathogen that infects a variety of decapod species and causes a highly contagious disease in penaeid shrimps. Mass mortalities caused by WSSV have pronounced commercial impact on shrimp aquaculture. Until now WSSV is the only known member of the virus fami...
journal_title:BMC evolutionary biology
pub_type: 杂志文章
doi:10.1186/s12862-015-0380-7
更新日期:2015-07-19 00:00:00
abstract:BACKGROUND:Survival in microrefugia represents an important paradigm in phylogeography for explaining rapid postglacial re-colonization by species in temperate regions. Microrefugia may allow populations to persist in areas where the climatic conditions on the surface have become unfavourable. Caves generally contain s...
journal_title:BMC evolutionary biology
pub_type: 杂志文章
doi:10.1186/1471-2148-14-9
更新日期:2014-01-16 00:00:00
abstract:BACKGROUND:Conflicts of interest between the sexes are increasingly recognized as an engine driving the (co-)evolution of reproductive traits. The reproductive behaviour of Drosophila montana suggests the occurrence of sexual conflict over the duration of copulation. During the last stages of copulation, females vigoro...
journal_title:BMC evolutionary biology
pub_type: 杂志文章
doi:10.1186/1471-2148-9-132
更新日期:2009-06-12 00:00:00
abstract:BACKGROUND:Runt-related transcription factor 2 (RUNX2) is a transcription factor essential for skeletal development. Variation within the RUNX2 polyglutamine / polyalanine (QA) repeat is correlated with facial length within orders of placental mammals and is suggested to be a major driver of craniofacial diversity. How...
journal_title:BMC evolutionary biology
pub_type: 杂志文章
doi:10.1186/s12862-017-0955-6
更新日期:2017-05-04 00:00:00
abstract:BACKGROUND:Dispersal is often associated with a suite of phenotypic traits that might reduce dispersal costs, but can be energetically costly themselves outside dispersal. Hence, dispersing and philopatric individuals might differ throughout their life cycle in their management of energy production. Because higher ener...
journal_title:BMC evolutionary biology
pub_type: 杂志文章
doi:10.1186/s12862-016-0697-x
更新日期:2016-06-14 00:00:00
abstract:BACKGROUND:The evolution and origin of cave organisms is a recurring issue in evolutionary studies, but analyses are often hindered by the inaccessibility of caves, morphological convergence, and complex colonization processes. Here we investigated the evolutionary history of Nesticella cave spiders, which are mainly d...
journal_title:BMC evolutionary biology
pub_type: 杂志文章
doi:10.1186/1471-2148-13-183
更新日期:2013-09-04 00:00:00
abstract:BACKGROUND:Phylogenies often contain both well-supported and poorly supported nodes. Determining how much additional data might be required to eventually recover most or all nodes with high support is an important pragmatic goal, and simulations have been used to examine this question. Most simulations have been based ...
journal_title:BMC evolutionary biology
pub_type: 杂志文章
doi:10.1186/1471-2148-9-56
更新日期:2009-03-12 00:00:00