Abstract:
:Biological invasions comprise accidental evolutionary experiments, whose genetic compositions underlie relative success, spread and persistence in new habitats. However, little is known about whether, or how, their population genetic patterns change temporally and/or spatially across the invasion's history. Theory predicts that most would undergo founder effect, exhibit low genetic divergence across the new range and gain variation over time via new arriving propagules. To test these predictions, we analyse population genetic diversity and divergence patterns of the Eurasian round goby Neogobius melanostomus across the two decades of its North American invasion in the Laurentian Great Lakes, comparing results from 13 nuclear DNA microsatellite loci and mitochondrial DNA cytochrome b sequences. We test whether 'genetic stasis', 'genetic replacement' and/or 'genetic supplement' scenarios have occurred at the invasion's core and expansion sites, in comparison with its primary native source population in the Dnieper River, Black Sea. Results reveal pronounced genetic divergence across the exotic range, with population areas remaining genetically distinct and statistically consistent across two decades, supporting 'genetic stasis' and 'founder takes most'. The original genotypes continue to predominate, whose high population growth likely outpaced the relative success of later arrivals. The original invasion core has stayed the most similar to the native source. Secondary expansion sites indicate slight allelic composition convergence towards the core population over time, attributable to some early 'genetic supplementation'. The geographic and temporal coverage of this investigation offers a rare opportunity to discern population dynamics over time and space in context of invasion genetic theory vs. reality.
journal_name
Mol Ecoljournal_title
Molecular ecologyauthors
Snyder MR,Stepien CAdoi
10.1111/mec.13997subject
Has Abstractpub_date
2017-02-01 00:00:00pages
1075-1090issue
4eissn
0962-1083issn
1365-294Xjournal_volume
26pub_type
杂志文章abstract::Agroforestry ecosystems may be an important resource for conservation and sustainable use of tropical trees, but little is known of the genetic diversity they contain. Inga edulis, a widespread indigenous fruit tree in South America, is used as a model to assess the maintenance of genetic diversity in five planted vs....
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2005.02431.x
更新日期:2005-02-01 00:00:00
abstract::Temporal changes at 16 allozyme loci in the Diplodus sargus population of Banyuls-sur-Mer (Mediterranean Sea, France) were monitored. Temporal genetic variation within a single population was examined over two temporal scales: (i) among three year-classes sampled at the same age, and (ii) within a single year-class sa...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.1365-294x.2002.01521.x
更新日期:2002-08-01 00:00:00
abstract::The random amplified polymorphic DNA (RAPD) technique was employed in the haplo-diploid dioecious species Gracilaria gracilis to identify sex-linked PCR markers. Sixty-nine decamer oligonucleotide primers were tested on two bulks of DNA, one from five haploid males and the other from five haploid females. One of these...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.1365-294x.1999.00721.x
更新日期:1999-09-01 00:00:00
abstract::Genomic diversity is the evolutionary foundation for adaptation to environmental change and thus is essential to consider in conservation planning. Island species are ideal for investigating the evolutionary drivers of genomic diversity, in part because of the potential for biological replicates. Here, we use genome d...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.15266
更新日期:2019-11-01 00:00:00
abstract::Male nuptial colour hues are important for the maintenance of reproductive isolation among cichlid fish species, and environmental changes that lead to narrower light spectra can lead to hybridization. However, cichlid species can naturally co-occur in narrow light spectrum habitats, such as turbid shallow lakes and t...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2006.03173.x
更新日期:2007-02-01 00:00:00
abstract::Fossil, archaeological, and morphometric data suggest that indigenous red foxes in North America were derived from vicariance in two disjunct refugia during the last glaciation: one in Beringia and one in the contiguous USA. To test this hypothesis, we conducted a phylogeographical analysis of the North American red f...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2009.04222.x
更新日期:2009-06-01 00:00:00
abstract::A new polymerase chain reaction-based screening method for microsatellites is presented. Using this method, we isolated 12 microsatellite loci from Drosophila buzzatii, two of which were X-linked. We applied the other 10 microsatellite loci to the analysis of genetic variation in five natural populations of D. buzzati...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.1365-294x.2002.01428.x
更新日期:2002-02-01 00:00:00
abstract::Reproductive skew - the extent to which reproduction is unevenly shared between individuals in a social group - varies greatly between and within animal species. In this study, we investigated how queens share parentage in polygynous (multiple queen) colonies of the Mediterranean ant Pheidole pallidula. We used highly...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.1365-294x.2003.02036.x
更新日期:2004-01-01 00:00:00
abstract::Several species of swallowtail butterflies (genus Papilio) are Batesian mimics that express multiple mimetic female forms, while the males are monomorphic and nonmimetic. The evolution of such sex-limited mimicry may involve sexual dimorphism arising first and mimicry subsequently. Such a stepwise scenario through a n...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.14012
更新日期:2017-03-01 00:00:00
abstract::The koala, Phascolarctos cinereus, is a geographically widespread species endemic to Australia, with three currently recognized subspecies: P.c. adustus, P.c. cinereus, and P.c. victor. Intraspecific variation in the mitochondrial DNA (mtDNA) control region was examined in over 200 animals from 16 representative popul...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.1365-294x.1999.00656.x
更新日期:1999-06-01 00:00:00
abstract::Marine metapopulations often exhibit subtle population structure that can be difficult to detect. Given recent advances in high-throughput sequencing, an emerging question is whether various genotyping approaches, in concert with improved sampling designs, will substantially improve our understanding of genetic struct...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.15405
更新日期:2020-06-01 00:00:00
abstract::Although many sharks begin their life confined in nursery habitats, it is unknown how rapidly they disperse away from their natal area once they leave the nursery. We examine this issue in immature lemon sharks (Negaprion brevirostris) from the time they leave the nursery (approximately age 3) at a subtropical island ...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2009.04289.x
更新日期:2009-08-01 00:00:00
abstract::Greater prairie-chickens (Tympanuchus cupido pinnatus) were once found throughout the tallgrass prairie of midwestern North America but over the last century these prairies have been lost or fragmented by human land use. As a consequence, many current populations of prairie-chickens have become isolated and small. Thi...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.1365-294x.2003.02013.x
更新日期:2003-12-01 00:00:00
abstract::Antrodiaetus riversi is a dispersal-limited, habitat-specialized mygalomorph spider species endemic to mesic woodlands of northern and central California. Here, we build upon prior phylogeographic research using a much larger geographic sample and include additional nuclear genes, providing more detailed biogeographic...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.12130
更新日期:2013-01-01 00:00:00
abstract::Due to difficulties in identifying important within-species biodiversity for effective species management and conservation, the use of multiple complementary sources of information is required to identify and assess the designation of conservation units based on the degree of variation among populations within a speci...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2010.04596.x
更新日期:2010-05-01 00:00:00
abstract::Transgenic plants expressing resistance to herbivorous insects may represent a safe and sustainable pest control alternative if they do not interfere with the natural enemies of target pests. Here we examined interactions between oryzacystatin I (OCI), a proteinase inhibitor from rice genetically engineered into potat...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.1365-294x.2003.01918.x
更新日期:2003-09-01 00:00:00
abstract::We investigated the relationship between genomic and phenotypic evolution among replicate populations of Escherichia coli evolved for 1000 generations in four different environments. By resequencing evolved genomes, we identified parallel changes in genes encoding transcription regulators within and between environmen...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.12312
更新日期:2013-06-01 00:00:00
abstract::As part of a Global Biodiversity Hotspot, the conservation of Sri Lanka's endemic biodiversity warrants special attention. With 51 species (50 of them endemic) occurring in the island, the biodiversity of freshwater crabs is unusually high for such a small area (65,600 km(2)). Freshwater crabs have successfully coloni...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2009.04439.x
更新日期:2010-01-01 00:00:00
abstract::It has been long assumed that abiotic factors (i.e., geography and climate) dominate the ecological and evolutionary processes underlying the distribution of species, lineages and genes at broad spatial scales and, as a result, the study of interspecific interactions has largely been overlooked in biogeography researc...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.15548
更新日期:2020-12-01 00:00:00
abstract::Genetic differentiation may exist among sympatric populations of a species due to long-term associations with alternative hosts (i.e. host-associated differentiation). While host-associated differentiation has been documented in several phytophagus insects, there are far fewer cases known in animal parasites. The bed ...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.13086
更新日期:2015-03-01 00:00:00
abstract::Plant mating systems are known to influence population genetic structure because pollen and seed dispersal are often spatially restricted. However, the reciprocal outcomes of population structure on the dynamics of polymorphic mating systems have received little attention. In gynodioecious sea beet (Beta vulgaris ssp....
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2010.04586.x
更新日期:2010-04-01 00:00:00
abstract::Palaeoclimatic events and biogeographical processes since the mid-Tertiary are believed to have strongly influenced the evolution and distribution of the terrestrial vertebrate fauna of southeastern Australia. We examined the phylogeography of the temperate-adapted members of the Egernia whitii species group, a group ...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2005.02463.x
更新日期:2005-04-01 00:00:00
abstract::Despite no obvious barriers to gene flow in the marine realm, environmental variation and ecological specializations can lead to genetic differentiation in highly mobile predators. Here, we investigated the genetic structure of the harbour porpoise over the entire species distribution range in western Palearctic water...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.12817
更新日期:2014-07-01 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::White clover is polymorphic for cyanogenesis (HCN production after tissue damage), and this herbivore defence polymorphism has served as a classic model for studying adaptive variation. The cyanogenic phenotype requires two interacting biochemical components; the presence/absence of each component is controlled by a s...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2012.05486.x
更新日期:2012-05-01 00:00:00
abstract::The ecological and genetic factors determining the extent of introgression between species in secondary contact zones remain poorly understood. Here, we investigate the relative importance of isolating barriers and the demographic expansion of invasive Mytilus galloprovincialis on the magnitude and the direction of in...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.13340
更新日期:2015-09-01 00:00:00
abstract::We studied the phylogenetic relationships among the three stone pine species, Pinus cembra, P. sibirica, and P. pumila, using chloroplast microsatellites and mitochondrial nad1 intron 2 sequences. The three chloroplast microsatellite loci combined into a total of 18 haplotypes. Fourteen haplotypes were detected in 15 ...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.1365-294x.2001.01285.x
更新日期:2001-06-01 00:00:00
abstract::Unlike other migratory hummingbirds in North America, the broad-tailed hummingbird (Selasphorus platycercus) exhibits both long-distance migratory behaviour in the USA and sedentary behaviour in Mexico and Guatemala. We examined the evolution of migration linked to its northward expansion using a multiperspective appr...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.12614
更新日期:2014-02-01 00:00:00
abstract::Badgers are facultatively social, forming large groups at high density. Group-living appears to have high reproductive costs for females, and may lead to increased levels of inbreeding. The extent of female competition for reproduction has been estimated from field data, but knowledge of male reproductive success and ...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2004.02401.x
更新日期:2005-01-01 00:00:00
abstract::Island ecosystems provide an opportunity to examine a range of evolutionary and ecological processes. The Chatham Islands are an isolated archipelago situated approximately 800 km east of New Zealand. Geological evidence indicates that the Chatham Islands re-emerged within the last 1-4 million years, following a prolo...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2008.03832.x
更新日期:2008-07-01 00:00:00