Abstract:
:The expansion–contraction (EC) model predicts demographic and range contraction of temperate species during Pleistocene glaciations as a consequence of climate-related habitat changes, and provides a paradigm for explaining the high intraspecific diversity found in refugia in terms of long-term demographic stability. However, recent evidence has revealed a weak predictive power of this model for terrestrial species in insular and coastal settings. We investigated the Pleistocene EC dynamics and their evolutionary consequences on temperate species using the Maltese archipelago and its endemic lizard Podarcis filfolensis as a model system. The evolutionary and demographic history of P. filfolensis as inferred from mitochondrial and nuclear sequences data does not conform to the EC model predictions, supporting (i) demographic and spatial stability or expansion, rather than contraction, of the northern and southern lineages during the last glacial period; and (ii) a major role for allopatric differentiation primed by sea-level dynamics, rather than prolonged demographic stability, in the formation of the observed genetic diversity. When combined with evidence from other Mediterranean refugia, this study shows how the incorporation of Pleistocene sea-level variations in the EC model accounts for a reverse demographic and range response of insular and coastal temperate biotas relative to continental ones. Furthermore, this cross-archipelago pattern in which allopatric diversity is formed and shaped by EC cycles resembles that seen between isolated populations within mainland refugia and suggests that the EC model, originally developed to explain population fluctuations into and out-of refugia, may be appropriate for describing the demographic and evolutionary dynamics driving the high genetic diversity observed in these areas.
journal_name
Mol Ecoljournal_title
Molecular ecologyauthors
Salvi D,Schembri PJ,Sciberras A,Harris DJdoi
10.1111/mec.12668subject
Has Abstractpub_date
2014-03-01 00:00:00pages
1167-87issue
5eissn
0962-1083issn
1365-294Xjournal_volume
23pub_type
杂志文章abstract::Increasing physical damage on coral reefs from predation, storms and anthropogenic disturbances highlights the need to understand the impact of injury on the coral immune system. In this study, we examined the regulation of the coral immune response over 10 days following physical trauma artificially inflicted on in s...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.13257
更新日期:2015-07-01 00:00:00
abstract::In this issue of Molecular Ecology, Morick et al. (2011) present an interesting study of acquisition and transmission of Bartonella by Xenopsylla ramesis fleas (Fig. 1) which infest naturally wild desert rodents from the Negev desert. A major issue with vector-borne diseases and vector-borne infection is to know wheth...
journal_title:Molecular ecology
pub_type: 评论,杂志文章
doi:10.1111/j.1365-294x.2011.05141.x
更新日期:2011-07-01 00:00:00
abstract::Habitat fragmentation is a major force affecting demography and genetic structure of wild populations, especially in agricultural landscapes. The land snail Cepaea nemoralis (L.) was selected to investigate the impact of habitat fragmentation on the spatial genetic structure of an organism with limited dispersal abili...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2004.02357.x
更新日期:2004-12-01 00:00:00
abstract::In a broad survey of Drosophila melanogaster population samples, levels of abdominal pigmentation were found to be highly variable and geographically differentiated. A strong positive correlation was found between dark pigmentation and high altitude, suggesting adaptation to specific environments. DNA sequence polymor...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2007.03324.x
更新日期:2007-07-01 00:00:00
abstract::We examined the consequences of barriers, stream architecture and putative dispersal capability on levels of genetic differentiation among populations of the freshwater fish Craterocephalus stercusmuscarum. Seven polymorphic allozyme loci and sequences of a 498-bp fragment of the ATPase 6 mitochondrial DNA (mtDNA) gen...
journal_title:Molecular ecology
pub_type: 历史文章,杂志文章
doi:10.1046/j.1365-294x.2000.01054.x
更新日期:2000-11-01 00:00:00
abstract::Random amplified polymorphic DNA (RAPD) markers are sensitive to changes in reaction conditions and may express polymorphisms of nongenetic origin. Taxa with variable chromosome numbers are particularly challenging cases, as differences in DNA content may also influence marker reproducibility. We addressed these probl...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.1365-294x.2003.02037.x
更新日期:2004-01-01 00:00:00
abstract::The factors that control the assembly and composition of endophyte communities across plant hosts remains poorly understood. This is especially true for endophyte communities inhabiting inner tree bark, one of the least studied components of the plant microbiome. Here, we test the hypothesis that bark of different tre...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.15237
更新日期:2019-12-01 00:00:00
abstract::The declining health of coral reefs worldwide is likely to intensify in response to continued anthropogenic disturbance from coastal development, pollution, and climate change. In response to these stresses, reef-building corals may exhibit bleaching, which marks the breakdown in symbiosis between coral and zooxanthel...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2008.03879.x
更新日期:2008-09-01 00:00:00
abstract::Altruism in social insects has evolved between closely related full-siblings. It is therefore of considerable interest why some groups have secondarily evolved low within-colony relatedness, which in turn affects the relatedness incentives of within-colony cooperation and conflict. The highest queen mating frequencies...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2010.04945.x
更新日期:2011-01-01 00:00:00
abstract::Species are impacted by climate change at both ecological and evolutionary time scales. Studies in northern continents have provided abundant evidence of dramatic shifts in distributions of species subsequent to the last glacial maximum (LGM), particularly at high latitudes. However, little is known about the history ...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2010.04734.x
更新日期:2010-08-01 00:00:00
abstract::Accurate detection of offspring resulting from hybridization between individuals of distinct populations has a range of applications in conservation and population genetics. We assessed the hybrid identification efficiency of two methods (implemented in the STRUCTURE and NEWHYBRIDS programs) which are tailored to iden...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2005.02773.x
更新日期:2006-01-01 00:00:00
abstract::Medicago citrina is an endangered western Mediterranean endemic that grows only on small islets of the Balearic archipelago and off the eastern Spanish coast. Only 10 isolated subpopulations are currently known (four from Ibiza, three from Cabrera, two from Columbretes and one from an offshore islet in northern Alican...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2004.02289.x
更新日期:2004-09-01 00:00:00
abstract::Plasmid pSI30 was constructed to increase the sensitivity of detection of a genetically engineered micro-organism (GEM) and its recombinant DNA in environmental samples. This broad host-range, mobilizable plasmid contained chlorocatechol (clc) degradative genes, antibiotic resistance genes (ampicillin and kanamycin) a...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294x.1992.tb00169.x
更新日期:1992-10-01 00:00:00
abstract::Diversification and speciation of terrestrial organisms are anticipated in oceanic islands such as Macaronesia, a group of Atlantic islands that have remained unconnected to continental landmasses. Hitherto, the diversification of marine organisms in oceanic islands, especially those with low vagility, has received li...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.15052
更新日期:2019-04-01 00:00:00
abstract::Understanding how phenotypic variation is generated and maintained, and the evolutionary forces that shape these processes is the main goal of evolutionary biology. Great progress has been made in uncovering the genetic basis of morphological diversity, yet little is known about both the genetics and developmental bas...
journal_title:Molecular ecology
pub_type: 评论,新闻
doi:10.1111/mec.14099
更新日期:2017-05-01 00:00:00
abstract::Modern analytical methods for population genetics and phylogenetics are expected to provide more accurate results when data from multiple genome-wide loci are analysed. We present the results of an initial application of parallel tagged sequencing (PTS) on a next-generation platform to sequence thousands of barcoded P...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.12049
更新日期:2013-01-01 00:00:00
abstract::Mitochondrial DNA sequence data were obtained for eight species of flightless Galapaganus endemic weevils and one winged close relative in order to study their colonization history and modes of diversification in the Galápagos Archipelago. Contrary to most other insular radiations, the phylogeny estimates we recovered...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2007.03642.x
更新日期:2008-02-01 00:00:00
abstract::Differential gene flow, reductions in diversity following linked selection and/or features of the genome can structure patterns of genomic differentiation during the process of speciation. Possible sources of reproductive isolation are well studied between coastal and inland subspecies groups of Swainson's thrushes, w...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.13150
更新日期:2015-04-01 00:00:00
abstract::Adaptive ecological differentiation among sympatric populations is promoted by environmental heterogeneity, strong local selection and restricted gene flow. High gene flow, on the other hand, is expected to homogenize genetic variation among populations and therefore prevent local adaptation. Understanding how local a...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.12181
更新日期:2013-03-01 00:00:00
abstract::Although the importance of host plant chemistry in plant-insect interactions is widely accepted, the genetic basis of adaptation to host plants is not well understood. Here, we investigate transcriptional changes associated with a host plant shift in Drosophila mettleri. While D. mettleri is distributed mainly through...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.13388
更新日期:2015-10-01 00:00:00
abstract::Copy number variants (CNVs) are a major component of genotypic and phenotypic variation in genomes. To date, our knowledge of genotypic variation and evolution has largely been acquired by means of single nucleotide polymorphism (SNPs) analyses. Until recently, the adaptive role of structural variants (SVs) and partic...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.15565
更新日期:2020-12-01 00:00:00
abstract::Episodes of trans-Arctic faunal exchange and isolation between the north Pacific and Atlantic ocean basins have been implicated as important historic geological events contributing to extant patterns of genetic diversity and structure in Holarctic faunas. We made a further test of the significance of such biogeographi...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294x.1994.tb00057.x
更新日期:1994-06-01 00:00:00
abstract::Colonization is likely to be more successful for species with an ability to self-fertilize and thus to establish new populations as single individuals. As a result, self-compatibility should be common among colonizing species. This idea, labelled 'Baker's law', has been influential in discussions of sexual-system and ...
journal_title:Molecular ecology
pub_type: 杂志文章,评审
doi:10.1111/mec.13087
更新日期:2015-05-01 00:00:00
abstract::Domestic species such as cattle (Bos taurus taurus and B. t. indicus) represent attractive biological models to characterize the genetic basis of short-term evolutionary response to climate pressure induced by their post-domestication history. Here, using newly generated dense SNP genotyping data, we assessed the stru...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.15004
更新日期:2019-03-01 00:00:00
abstract::We present a de novo assembly of a eukaryote transcriptome using 454 pyrosequencing data. The Glanville fritillary butterfly (Melitaea cinxia; Lepidoptera: Nymphalidae) is a prominent species in population biology but had no previous genomic data. Sequencing runs using two normalized complementary DNA collections from...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2008.03666.x
更新日期:2008-04-01 00:00:00
abstract::Theoretical and empirical studies have shown that species radiations are facilitated when a trait under divergent natural selection is also involved in sexual selection. It is yet unclear how quick and effective radiations are where assortative mating is unrelated to the ecological environment and primarily results fr...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.15695
更新日期:2020-12-01 00:00:00
abstract::Aquifers, springs and other groundwater-dependent ecosystems are threatened by urban land use, which causes water quality deterioration through nutrient loading, sewage infiltration, groundwater extraction and, along coasts, seawater intrusion. The presence of certain microbes in groundwater can indicate that an aquif...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.15713
更新日期:2020-10-28 00:00:00
abstract::Philopatry and dispersal result in selection of habitat locations that may differ in resources and social environment and thus should influence fitness components like survival and reproduction. We examined short-distance movements of young and adult females from natal or previous nesting sites within a colony of Colu...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2011.05219.x
更新日期:2012-02-01 00:00:00
abstract::Deep-sea coral communities are key components of the Gulf of Mexico ecosystem and were adversely affected by the Deepwater Horizon (DWH) oil spill. Coral colonies exposed to oil and dispersant exhibited mortality, damage and physiological signatures of stress. Understanding how corals respond to oil and dispersant exp...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.14847
更新日期:2018-10-01 00:00:00
abstract::Both models and case studies suggest that chromosomal inversions can facilitate adaptation and speciation in the presence of gene flow by suppressing recombination between locally adapted alleles. Until recently, however, it has been laborious and time-consuming to identify and genotype inversions in natural populatio...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.15428
更新日期:2020-07-01 00:00:00