Abstract：
BACKGROUND:Divergent selection can be a major driver of ecological speciation. In insects of medical importance, understanding the speciation process is both of academic interest and public health importance. In the West Nile virus vector Culex pipiens, intraspecific pipiens and molestus forms vary in ecological and physiological traits. Populations of each form appear to share recent common ancestry but patterns of genetic differentiation across the genome remain unknown. Here, we undertook an AFLP genome scan on samples collected from both sympatric and allopatric populations from Europe and the USA to quantify the extent of genomic differentiation between the two forms. RESULTS:The forms were clearly differentiated but each exhibited major population sub-structuring between continents. Divergence between pipiens and molestus forms from USA was higher than in both inter- and intra-continental comparisons with European samples. The proportion of outlier loci between pipiens and molestus (≈3 %) was low but consistent in both continents, and similar to those observed between sibling species of other mosquito species which exhibit contemporary gene flow. Only two of the outlier loci were shared between inter-form comparisons made within Europe and USA. CONCLUSION:This study supports the molestus and pipiens status as distinct evolutionary entities with low genomic divergence. The low number of shared divergent loci between continents suggests a relatively limited number of genomic regions determining key typological traits likely to be driving incipient speciation and/or adaptation of molestus to anthropogenic habitats.
journal_name
BMC Evol Bioljournal_title
BMC evolutionary biologyauthors
Gomes B,Wilding CS,Weetman D,Sousa CA,Novo MT,Savage HM,Almeida AP,Pinto J,Donnelly MJdoi
10.1186/s12862-015-0477-zsubject
Has Abstractpub_date
2015-09-16 00:00:00pages
197issn
1471-2148pii
10.1186/s12862-015-0477-zjournal_volume
15pub_type
杂志文章abstract：BACKGROUND:Maternally inherited endosymbionts like Wolbachia pipientis are in linkage disequilibrium with the mtDNA of their hosts. Therefore, they can induce selective sweeps, decreasing genetic diversity over many generations. This sex ratio distorter, that is involved in the origin of parthenogenesis and other repro...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/1471-2148-10-340
更新日期：2010-11-04 00:00:00
abstract：BACKGROUND:The coincidence of long distance dispersal (LDD) and biome shift is assumed to be the result of a multifaceted interplay between geographical distance and ecological suitability of source and sink areas. Here, we test the influence of these factors on the dispersal history of the flowering plant genus Erica ...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/s12862-019-1545-6
更新日期：2019-12-05 00:00:00
abstract：BACKGROUND:Symbioses between invertebrates and prokaryotes are biological systems of particular interest in order to study the evolution of mutualism. The symbioses between the entomopathogenic nematodes Steinernema and their bacterial symbiont Xenorhabdus are very tractable model systems. Previous studies demonstrated...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/1471-2148-6-68
更新日期：2006-09-05 00:00:00
abstract：BACKGROUND:Computer-assisted analyses have shown that all bacterial genomes contain a small percentage of open reading frames with a frameshift or in-frame stop codon We report here a comparative analysis of these interrupted coding sequences (ICDSs) in six isolates of M. tuberculosis, two of M. bovis and one of M. afr...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/1471-2148-8-78
更新日期：2008-03-06 00:00:00
abstract：BACKGROUND:Aphids are striking in their prodigious reproductive capacity and reliance on microbial endosymbionts, which provision their hosts with necessary amino acids and provide protection against parasites and heat stress. Perhaps as a result of this bacterial dependence, aphids have limited immune function that ma...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/1471-2148-10-251
更新日期：2010-08-17 00:00:00
abstract：BACKGROUND:Early evolutionary theories of aging predict that populations which experience low extrinsic mortality evolve a retarded onset of senescence. Experimental support for this theory in vertebrates is scarce, in part for the difficulty of quantifying extrinsic mortality and its condition- and density-dependent c...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/1471-2148-13-77
更新日期：2013-04-03 00:00:00
abstract：BACKGROUND:Selection pressure governs the relative mutability and the conservedness of a protein across the protein family. Biomolecules (DNA, RNA and proteins) continuously evolve under the effect of evolutionary pressure that arises as a consequence of the host parasite interaction. IPCS (Inositol phosphorylceramide ...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/1471-2148-14-142
更新日期：2014-06-21 00:00:00
abstract：BACKGROUND:The detection and avoidance of "long-branch effects" in phylogenetic inference represents a longstanding challenge for molecular phylogenetic investigations. A consequence of parallelism and convergence, long-branch effects arise in phylogenetic inference when there is unequal molecular divergence among line...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/s12862-015-0364-7
更新日期：2015-05-14 00:00:00
abstract：BACKGROUND:Teleost radiation in the oceans required specific physiological adaptations in eggs and early embryos to survive in the hyper-osmotic seawater. Investigating the evolution of aquaporins (AQPs) in these vertebrates should help to elucidate how mechanisms for water homeostasis evolved. The marine teleost gilth...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/1471-2148-8-259
更新日期：2008-09-23 00:00:00
abstract：BACKGROUND:Understanding the evolutionary history of morphologically cryptic species complexes is difficult, and made even more challenging when geographic distributions have been modified by human-mediated dispersal. This situation is common in the Mediterranean Basin where, aside from the environmental heterogeneity ...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/s12862-014-0195-y
更新日期：2014-10-09 00:00:00
abstract：BACKGROUND:The composition and expression of vertebrate gene families is shaped by species specific gene loss in combination with a number of gene and genome duplication events (R1, R2 in all vertebrates, R3 in teleosts) and depends on the ecological and evolutionary context. In this study we analyzed the evolutionary ...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/1471-2148-10-117
更新日期：2010-04-29 00:00:00
abstract：BACKGROUND:Evolutionary transitions from terrestrial to aquatic life history cause drastic changes in sensory systems. Indeed, the drastic changes in vision have been reported in many aquatic amniotes, convergently. Recently, the opsin genes of the full-aquatic sea snakes have been reported. However, those of the amphi...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/s12862-020-01725-1
更新日期：2020-11-26 00:00:00
abstract：BACKGROUND:Hoplolaimina plant-parasitic nematodes (PPN) are a lineage of animals with many documented cases of horizontal gene transfer (HGT). In a recent study, we reported on three likely HGT candidate genes in the soybean cyst nematode Heterodera glycines, all of which encode secreted candidate effectors with putati...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/s12862-016-0651-y
更新日期：2016-04-12 00:00:00
abstract：BACKGROUND:Animals have a greater diversity of signalling pathways than their unicellular relatives, consistent with the evolution and expansion of these pathways occurring in parallel with the origin of animal multicellularity. However, the genomes of sponges and ctenophores - non-bilaterian basal animals - typically ...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/s12862-019-1418-z
更新日期：2019-04-25 00:00:00
abstract：BACKGROUND:Through its ability to open pores in cell membranes, perforin-1 plays a key role in the immune system. Consistent with this role, the gene encoding perforin shows hallmarks of complex evolutionary events, including amplification and pseudogenization, in multiple species. A large proportion of these events oc...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/s12862-020-01698-1
更新日期：2020-10-19 00:00:00
abstract：BACKGROUND:Polymorphisms of single amino acid repeats (SARPs) are a potential source of genetic variation for rapidly evolving morphological traits. Here, we characterize variation in and test for an association between SARPs and head shape, a trait under strong sexual selection, in the stalk-eyed fly, Teleopsis dalman...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/1471-2148-10-227
更新日期：2010-07-27 00:00:00
abstract：BACKGROUND:Hepatitis B virus (HBV) is an important infectious agent that causes widespread concern because billions of people are infected by at least 8 different HBV genotypes worldwide. However, reconstruction of the phylogenetic relationship between HBV genotypes is difficult. Specifically, the phylogenetic relation...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/1471-2148-13-120
更新日期：2013-06-11 00:00:00
abstract：BACKGROUND:Sperm storage plays a key role in the reproductive success of many sexually-reproducing organisms, and the capacity of long-term sperm storage varies across species. While there are theoretical explanations for why such variation exists, to date there are no controlled empirical tests of the reproductive con...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/s12862-020-01704-6
更新日期：2020-11-30 00:00:00
abstract：BACKGROUND:The availability of multiple complete genome sequences from diverse taxa prompts the development of new phylogenetic approaches, which attempt to incorporate information derived from comparative analysis of complete gene sets or large subsets thereof. Such attempts are particularly relevant because of the ma...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/1471-2148-1-8
更新日期：2001-10-20 00:00:00
abstract：BACKGROUND:Sphingomyelinase D is the main toxin present in the venom of Loxosceles spiders. Several isoforms present in these venoms can be structurally classified in two groups. Class I Sphingomyelinase D contains a single disulphide bridge and variable loop. Class II Sphingomyelinase D presents an additional intracha...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/s12862-015-0561-4
更新日期：2015-12-21 00:00:00
abstract：BACKGROUND:Cyanobacteria are one of the oldest and morphologically most diverse prokaryotic phyla on our planet. The early development of an oxygen-containing atmosphere approximately 2.45-2.22 billion years ago is attributed to the photosynthetic activity of cyanobacteria. Furthermore, they are one of the few prokaryo...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/1471-2148-11-45
更新日期：2011-02-14 00:00:00
abstract：BACKGROUND:Prior to the sequencing of the human genome it was typically assumed that, tandem duplication aside, gene order is for the most part random. Numerous observers, however, highlighted instances in which a ligand was linked to one of its cognate receptors, with some authors suggesting that this may be a general...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/1471-2148-5-62
更新日期：2005-11-08 00:00:00
abstract：BACKGROUND:The maternal zygotic transition marks the time at which transcription from the zygotic genome is initiated and a subset of maternal RNAs are progressively degraded in the developing embryo. A number of early zygotic genes have been identified in Drosophila melanogaster and comparisons to sequenced mosquito g...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/1471-2148-10-206
更新日期：2010-07-08 00:00:00
abstract：BACKGROUND:Tracking newly emergent virulent populations in agroecosystems provides an opportunity to increase our understanding of the co-evolution dynamics of pathogens and their hosts. On the one hand host plants exert selective pressure on pathogen populations, thus dividing them into subpopulations of different vir...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/s12862-018-1122-4
更新日期：2018-01-19 00:00:00
abstract：BACKGROUND:The origin and stability of cooperation is a hot topic in social and behavioural sciences. A complicated conundrum exists as defectors have an advantage over cooperators, whenever cooperation is costly so consequently, not cooperating pays off. In addition, the discovery that humans and some animal populatio...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/1471-2148-10-336
更新日期：2010-11-02 00:00:00
abstract：BACKGROUND:Ependymins were originally defined as fish-specific secreted glycoproteins involved in central nervous system plasticity and memory formation. Subsequent research revealed that these proteins represent a fish-specific lineage of a larger ependymin-related protein family (EPDRs). EPDRs have now been identifie...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/s12862-018-1306-y
更新日期：2018-12-04 00:00:00
abstract：BACKGROUND:A prerequisite for a duplication to spread through and persist in a given population is retaining expression of both gene copies. Yet changing a gene's dosage is frequently detrimental to fitness. Consequently, dosage-sensitive genes are less likely to duplicate. However, in cases where the level of gene pro...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/1471-2148-9-193
更新日期：2009-08-07 00:00:00
abstract：BACKGROUND:Phylogeography and historical demography of the cyprinid fish Diptychus maculatus (subfamily Schizothoracinae) are evaluated across three river systems in the Northern Qinghai-Tibetan Plateau (QTP) and Tien Shan range: the Indus River, Tarim River and Ili River. RESULTS:Results from both mtDNA (16S rRNA, Cy...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/s12862-016-0756-3
更新日期：2016-09-09 00:00:00
abstract：BACKGROUND:Phoronids undergo a remarkable metamorphosis, in which some parts of the larval body are consumed by the juvenile and the body plan completely changes. According to the only previous hypothesis concerning the evolution of the phoronid body plan, a hypothetical ancestor of phoronids inhabited a U-shaped burro...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/s12862-015-0504-0
更新日期：2015-10-21 00:00:00
abstract：BACKGROUND:The entomopathogenic nematode Steinernema carpocapsae has been used worldwide as a biocontrol agent for insect pests, making it an interesting model for understanding parasite-host interactions. Two models propose that these interactions are co-evolutionary processes in such a way that equilibrium is never r...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/s12862-017-0935-x
更新日期：2017-04-26 00:00:00
