Abstract:
:A considerable fraction of the world's biodiversity is of recent evolutionary origin and has evolved as a by-product of, and is maintained by, divergent adaptation in heterogeneous environments. Conservationists have paid attention to genetic homogenization caused by human-induced translocations (e.g. biological invasions and stocking), and to the importance of environmental heterogeneity for the ecological coexistence of species. However, far less attention has been paid to the consequences of loss of environmental heterogeneity to the genetic coexistence of sympatric species. Our review of empirical observations and our theoretical considerations on the causes and consequences of interspecific hybridization suggest that a loss of environmental heterogeneity causes a loss of biodiversity through increased genetic admixture, effectively reversing speciation. Loss of heterogeneity relaxes divergent selection and removes ecological barriers to gene flow between divergently adapted species, promoting interspecific introgressive hybridization. Since heterogeneity of natural environments is rapidly deteriorating in most biomes, the evolutionary ecology of speciation reversal ought to be fully integrated into conservation biology.
journal_name
Mol Ecoljournal_title
Molecular ecologyauthors
Seehausen O,Takimoto G,Roy D,Jokela Jdoi
10.1111/j.1365-294X.2007.03529.xsubject
Has Abstractpub_date
2008-01-01 00:00:00pages
30-44issue
1eissn
0962-1083issn
1365-294Xpii
MEC3529journal_volume
17pub_type
杂志文章abstract::The application of spatially explicit models of population dynamics to fisheries management and the design marine reserve network systems has been limited due to a lack of empirical estimates of larval dispersal. Here we compared assignment tests and parentage analysis for examining larval retention and connectivity u...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2009.04109.x
更新日期:2009-04-01 00:00:00
abstract::Habitat fragmentation may disrupt original patterns of gene flow and lead to drift-induced differentiation among local population units. Top predators such as the jaguar may be particularly susceptible to this effect, given their low population densities, leading to small effective sizes in local fragments. On the oth...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2010.04856.x
更新日期:2010-11-01 00:00:00
abstract::Sequence and restriction site analyses of the paternally inherited chloroplast rbcL gene and maternally inherited mitochondrial nad1 fragments from the same set of populations and individuals were used to investigate cytoplasmic composition and population establishment of Pinus densata, a diploid pine that originated ...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.1365-294x.2003.01962.x
更新日期:2003-11-01 00:00:00
abstract::Understanding the spatial scale at which selection acts upon adaptive genetic variation in natural populations is fundamental to our understanding of evolutionary ecology, and has important ramifications for conservation. The environmental factors to which individuals of a population are exposed can vary at fine spati...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.13759
更新日期:2016-09-01 00:00:00
abstract::The Veronica alpina complex comprises eight species of alpine habitats over a wide range of mountain systems in the Northern Hemisphere. The occurrence of sympatric species in the European and North American mountain systems allowed us not only to investigate the effect of the ice ages on intraspecific phylogeographic...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2006.02980.x
更新日期:2006-10-01 00:00:00
abstract::Many studies propose that Quaternary climatic cycles contracted and/or expanded the ranges of species and biomes. Strong expansion-contraction dynamics of biomes presume concerted demographic changes of associated fauna. The analysis of temporal concordance of demographic changes can be used to test the influence of Q...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.14239
更新日期:2017-09-01 00:00:00
abstract::Defence against pathogenic infection can take two forms: resistance and tolerance. Resistance is the ability of the host to limit a pathogen burden, whereas tolerance is the ability to limit the negative consequences of infection at a given level of infection intensity. Evolutionarily, a tolerance strategy that is ind...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.14017
更新日期:2017-03-01 00:00:00
abstract::Rhizosphere microbes affect plant performance, including plant resistance against insect herbivores; yet, a direct comparison of the relative influence of rhizosphere microbes versus plant genetics on herbivory levels and on metabolites related to defence is lacking. In the crucifer Boechera stricta, we tested the eff...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.14989
更新日期:2019-04-01 00:00:00
abstract::Environmental DNA (eDNA) metabarcoding is becoming a key tool for biodiversity monitoring over large geographical or taxonomic scales and for elusive taxa such as soil organisms. Increasing sample sizes and interest in remote or extreme areas often require the preservation of soil samples and thus deviations from opti...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.15674
更新日期:2020-10-08 00:00:00
abstract::Genetic divergence among populations arises through natural selection or drift and is counteracted by connectivity and gene flow. In sympatric populations, isolating mechanisms are thus needed to limit the homogenizing effects of gene flow to allow for adaptation and speciation. Chromosomal inversions act as an import...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.15010
更新日期:2019-03-01 00:00:00
abstract::Spatial and environmental heterogeneity are major factors in structuring species distributions in alpine landscapes. These landscapes have also been affected by glacial advances and retreats, causing alpine taxa to undergo range shifts and demographic changes. These nonequilibrium population dynamics have the potentia...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2012.05696.x
更新日期:2012-09-01 00:00:00
abstract::Arion vulgaris (syn. A. lusitanicus) is the most destructive pest slug in Europe. The species has been regarded a classic case of an ongoing biological invasion with negative economic and ecological impact in many European countries, but this status has recently been contested. In this study, we assessed mitochondrial...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.13860
更新日期:2016-11-01 00:00:00
abstract::Crater lakes provide a natural laboratory to study speciation of cichlid fishes by ecological divergence. Up to now, there has been a dearth of transcriptomic and genomic information that would aid in understanding the molecular basis of the phenotypic differentiation between young species. We used next-generation seq...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2009.04488.x
更新日期:2010-03-01 00:00:00
abstract::Cichlid fish are well known for their high speciation rates, which are usually accompanied by spectacular and rapid diversification in eco-morphological and secondary sexual traits. This is best illustrated by the famous repeated explosive radiations in the African Great Lakes Tanganyika, Malawi and Victoria, each lak...
journal_title:Molecular ecology
pub_type: 评论,杂志文章
doi:10.1111/mec.13598
更新日期:2016-04-01 00:00:00
abstract::Although microbial ecology of the gut is now a major focus of interest, little is known about the molecular determinants of microbial adaptation in the gut. Experimental evolution coupled with whole-genome sequencing can provide insights of the adaptive process. In vitro experiments have revealed some conserved patter...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.13851
更新日期:2017-04-01 00:00:00
abstract::Most emerging pathogens of humans can infect multiple host species (Woolhouse & Gowtage-Sequeria, 2005). This simple fact has motivated multiple large-scale, comparative analyses of the drivers of pathogen sharing and zoonotic pathogen richness among hosts as well as the factors determining the zoonotic potential of p...
journal_title:Molecular ecology
pub_type: 评论,新闻
doi:10.1111/mec.15573
更新日期:2020-09-01 00:00:00
abstract::Dispersal plays a prominent role in most conceptual models of community assembly. However, direct measurement of dispersal across a whole community is difficult at ecologically relevant spatial scales. For cryptic organisms, such as fungi and bacteria, the scale and importance of dispersal limitation has become a majo...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2012.05666.x
更新日期:2012-08-01 00:00:00
abstract::Phenotypic plasticity has been hypothesized to play a central role in the evolution of phenotypic diversity across species (West-Eberhard ). Through 'genetic assimilation', phenotypes that are initially environmentally induced within species become genetically fixed over evolutionary time. While genetic assimilation h...
journal_title:Molecular ecology
pub_type: 评论,新闻
doi:10.1111/mec.13926
更新日期:2016-12-01 00:00:00
abstract::Aside from its selective role in filtering inter-individual variation during evolution by natural selection, the environment also plays an instructive role in producing variation during development. External environmental cues can influence developmental rates and/or trajectories and lead to the production of distinct...
journal_title:Molecular ecology
pub_type: 杂志文章,评审
doi:10.1111/j.1365-294X.2011.05016.x
更新日期:2011-04-01 00:00:00
abstract::A half century ago the State of Hawaii began a remarkable, if unintentional, experiment on the population genetics of introduced species, by releasing 2431 Bluestriped Snappers (Lutjanus kasmira) from the Marquesas Islands in 1958 and 728 conspecifics from the Society Islands in 1961. By 1992 L. kasmira had spread acr...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2010.04535.x
更新日期:2010-03-01 00:00:00
abstract::In a study of genetic polymorphism in the gypsy moth Lymantria dispar we observed the aberrant inheritance of a random amplified polymorphic DNA (RAPD) fragment designated H11-589. This fragment was present in amplification products of F1 progeny of different crosses although it was not amplified from either parental ...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.1365-294x.1999.00714.x
更新日期:1999-09-01 00:00:00
abstract::Large-scale anthropogenic changes in the environment are reshaping global biodiversity and the evolutionary trajectory of many species. Evolutionary mechanisms that allow organisms to thrive in this rapidly changing environment are just beginning to be investigated (Hoffmann & Sgrò 2011; Colautti & Barrett 2013). Weed...
journal_title:Molecular ecology
pub_type: 评论,杂志文章
doi:10.1111/mec.12717
更新日期:2014-05-01 00:00:00
abstract::Understanding the processes that shape patterns of genetic structure across space is a central aim of landscape genetics. However, it remains unclear how geographical features and environmental variables shape gene flow, particularly for marine species in large complex seascapes. Here, we evaluated the genomic composi...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.13471
更新日期:2015-12-01 00:00:00
abstract::Social insect colonies possess a range of defences which protect them against highly virulent parasites and colony collapse. The host-parasite interaction between honey bees (Apis mellifera) and the mite Varroa destructor is unusual, as honey bee colonies are relatively poorly defended against this parasite. The inter...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.15080
更新日期:2019-06-01 00:00:00
abstract::We used comparative landscape genetics to examine the relative roles of historical events, intrinsic traits and landscape factors in determining the distribution of genetic diversity of river fishes across the North American Great Plains. Spatial patterns of diversity were overlaid on a patch-based graphical model and...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.12970
更新日期:2014-12-01 00:00:00
abstract::At high altitude, the reduced availability of thermal energy and oxygen poses major challenges to organisms. Different species or populations have evolved similar solutions to these challenges, such as blood flow regulation in animals (Bouverot, 1985). Previous studies investigating such convergent adaptations have pr...
journal_title:Molecular ecology
pub_type: 评论,新闻
doi:10.1111/mec.15093
更新日期:2019-05-01 00:00:00
abstract::The black surfperch Embiotoca jacksoni and the striped surfperch E. lateralis (Embiotocidae, Perciformes) are livebearing temperate reef fishes that live sympatrically over a large portion of their distribution range, where they exhibit strong ecological competition. In order to assess whether mating strategies reflec...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2009.04123.x
更新日期:2009-04-01 00:00:00
abstract::Variance in reproductive success is a major determinant of the degree of genetic drift in a population. While many plants and animals exhibit high variance in their number of progeny, far less is known about these distributions for microorganisms. Here, we used a strain barcoding approach to quantify variability in of...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.15200
更新日期:2019-09-01 00:00:00
abstract::Geographical isolation, habitat variation and trophic specialization have contributed to a large extent to the astonishing diversity of cichlid fishes in the Great East African lakes. Because parasite communities often vary across space and environments, parasites can accompany and potentially enhance cichlid species ...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.13833
更新日期:2016-11-01 00:00:00
abstract::Studies that span entire species ranges can provide insight into the relative roles of historical contingency and contemporary factors that influence population structure and can reveal patterns of genetic variation that might otherwise go undetected. American shad is a wide ranging anadromous clupeid fish that exhibi...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.12197
更新日期:2013-03-01 00:00:00