Abstract:
:Telomeres are dynamic DNA-protein structures that form protective caps at the ends of eukaryotic chromosomes. Although initial telomere length is partly genetically determined, subsequent accelerated telomere shortening has been linked to elevated levels of oxidative stress. Recent studies show that short telomere length alone is insufficient to induce cellular senescence; advanced attrition of these repetitive DNA sequences does, however, reflect ageing processes. Furthermore, telomeres vary widely in length between individuals of the same age, suggesting that individuals differ in their exposure or response to telomere-shortening stress factors. Here, we show that residual telomere length predicts fitness components in two phylogenetically distant bird species: longevity in sand martins, Riparia riparia, and lifetime reproductive success in dunlins, Calidris alpina. Our results therefore imply that individuals with longer than expected telomeres for their age are of higher quality.
journal_name
Mol Ecoljournal_title
Molecular ecologyauthors
Pauliny A,Wagner RH,Augustin J,Szép T,Blomqvist Ddoi
10.1111/j.1365-294X.2006.02862.xsubject
Has Abstractpub_date
2006-05-01 00:00:00pages
1681-7issue
6eissn
0962-1083issn
1365-294Xpii
MEC2862journal_volume
15pub_type
杂志文章abstract::The desert locust (Schistocerca gregaria) undergoes crowding-induced phase transformation from solitary form to gregarious form. The transformations involves changes in behaviour, colour, development, morphometry, fecundity and endocrine physiology. Recession populations of the desert locust exist primarily in the sol...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.1365-294x.2001.01212.x
更新日期:2001-03-01 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::Variation of DNA methylation is thought to play an important role for rapid adjustments of plant populations to dynamic environmental conditions, thus compensating for the relatively slow response time of genetic adaptations. However, genetic and epigenetic variation of wild plant populations has not yet been directly...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.12835
更新日期:2014-07-01 00:00:00
abstract::Major histocompatibility complex (MHC) genes, coding molecules which play an important role in immune response, are the most polymorphic genes known in vertebrates. However, MHC polymorphism in some species is limited. MHC monomorphism at several MHC class I and II loci was previously reported for two neighbouring nor...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2005.02751.x
更新日期:2005-12-01 00:00:00
abstract::Pollen DNA metabarcoding-marker-based genetic identification of potentially mixed-species pollen samples-has applications across a variety of fields. While basic species-level pollen identification using standard DNA barcode markers is established, the extent to which metabarcoding (a) correctly assigns species identi...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.14840
更新日期:2019-01-01 00:00:00
abstract::A whole-genome duplication (WGD) doubles the entire genomic content of a species and is thought to have catalysed adaptive radiation in some polyploid-origin lineages. However, little is known about general consequences of a WGD because gene duplicates (i.e., paralogs) are commonly filtered in genomic studies; such fi...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.14201
更新日期:2017-09-01 00:00:00
abstract::Direct comparison of genetic patterns between museum specimens and contemporary collections can be a powerful approach for detecting recent demographic changes. Using microsatellite markers, we examined historical and contemporary genetic variation from an apparently declining bumble bee species, Bombus pensylvanicus,...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2009.04160.x
更新日期:2009-05-01 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::The social dynamics surrounding courtship, mating and parental care are complex enough when just a single male and female are involved, but for species that employ multiple strategies for achieving fertilization success, the network of interactions among rivals, allies and suitors can be utterly complicated. Such is t...
journal_title:Molecular ecology
pub_type: 新闻
doi:10.1111/mec.15183
更新日期:2019-08-01 00:00:00
abstract::The populations of the bivalve clam Macoma balthica in the low-salinity Northern Baltic Sea represent an admixture of two strongly diverged genomic origins, the Pacific Macoma balthica balthica (approx. 60% genomic contribution) and Atlantic Macoma balthica rubra (40%). Using allozyme and mtDNA characters, we describe...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2007.03688.x
更新日期:2008-03-01 00:00:00
abstract::Spatial population structure has important ecological and evolutionary consequences. Little is known about the population structure of snowshoe hares (Lepus americanus), despite their ecological importance in North American boreal forests. We used seven variable microsatellite DNA loci to determine the spatial genetic...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.1365-294x.2002.01566.x
更新日期:2002-09-01 00:00:00
abstract::We define a genetic similarity rule that predicts how genetic variation in a dominant plant affects the structure of an arthropod community. This rule applies to hybridizing cottonwood species where plant genetic variation determines plant-animal interactions and structures a dependent community of leaf-modifying arth...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2005.02749.x
更新日期:2006-04-01 00:00:00
abstract::We reanalysed published data to evaluate whether climate and habitat are barriers to dispersal in one of the most mobile and widely distributed mammals, the grey wolf (Canis lupus). Distance-based redundancy analysis (dbRDA) was used to examine the amount of variation in genetic distances that could be explained by an...
journal_title:Molecular ecology
pub_type: 杂志文章,meta分析
doi:10.1111/j.1365-294X.2004.02244.x
更新日期:2004-08-01 00:00:00
abstract::In Europe, the last 20 years have seen a spectacular increase in accidental introductions of marine species, but it has recently been suggested that both the actual number of invaders and their impacts have been seriously underestimated because of the prevalence of sibling species in marine habitats. The red alga Poly...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.1365-294x.2001.01240.x
更新日期:2001-04-01 00:00:00
abstract::Biological invasions generally start from low initial population sizes, leading to reduced genetic variation in nuclear and especially mitochondrial DNA. Consequently, genetic approaches for the study of invasion history and population structure are difficult. An extreme example is the Mediterranean fruit fly, Ceratit...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.1365-294x.1998.00351.x
更新日期:1998-05-01 00:00:00
abstract::The harbour porpoise, Phocoena phocoena, experiences high levels of nonnatural mortality owing to interactions with commercial fisheries throughout its range. To accurately evaluate the significance of this bycatch, information on population structure is required. We have examined the population structure of this spec...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.1365-294x.1999.00758.x
更新日期:1999-12-01 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::Studying hybridization has the potential to elucidate challenging questions in evolutionary biology such as the nature of adaptive genetic variation and reproductive isolation. A growing body of work highlights that the merging of divergent genomes goes beyond the reshuffling of standing variation from related species...
journal_title:Molecular ecology
pub_type: 评论,新闻
doi:10.1111/mec.14247
更新日期:2017-09-01 00:00:00
abstract::Landscape genomics promises to provide novel insights into how neutral and adaptive processes shape genome-wide variation within and among populations. However, there has been little emphasis on examining whether individual-based phenotype-genotype relationships derived from approaches such as genome-wide association ...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.13473
更新日期:2016-01-01 00:00:00
abstract::Phylogeographical investigations of arctic organisms provide spatial and temporal frameworks for interpreting the role of climate change on biotic diversity in high-latitude ecosystems. Phylogenetic analyses were conducted on 473 base pairs of the mitochondrial control region in 192 arctic hares (Lepus arcticus, Lepus...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2005.02625.x
更新日期:2005-09-01 00:00:00
abstract::Classification, phylogeography and the testing of evolutionary hypotheses rely on correct estimation of species phylogeny. Early molecular phylogenies often relied on mtDNA alone, which acts as a single linkage group with one history. Over the last decade, the use of multiple nuclear sequences has often revealed confl...
journal_title:Molecular ecology
pub_type: 杂志文章,评审
doi:10.1111/mec.14096
更新日期:2017-06-01 00:00:00
abstract::The primary goal of captive breeding programmes for endangered species is to prevent extinction, a component of which includes the preservation of genetic diversity and avoidance of inbreeding. This is typically accomplished by minimizing mean kinship in the population, thereby maintaining equal representation of the ...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.12482
更新日期:2013-11-01 00:00:00
abstract::Between plagues, the solitarious desert locust (Schistocerca gregaria) is generally thought to exist as small populations, which are particularly prone to extinction events in arid regions of Africa and Asia. Given the high genetic structuring observed in one geographical area (the Eritrean coast) by former authors, a...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.12687
更新日期:2014-04-01 00:00:00
abstract::Whether alpine plant species survived Pleistocene glaciations in situ on high alpine nunatak mountains is still under debate. To test this hypothesis, Senecio halleri, a high alpine and endemic species with a narrow distribution range in the European Alps, was chosen as a model organism. Polymerase chain reaction-rest...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2007.03273.x
更新日期:2007-06-01 00:00:00
abstract::We investigated range-wide phylogeographic variation in three European ash species (Fraxinus sp., Oleaceae). Chloroplast DNA (cpDNA) microsatellites were typed in the thermophilous Fraxinus angustifolia and Fraxinus ornus and the observed haplotypes and the geographic distribution of diversity were compared to cpDNA d...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2006.02897.x
更新日期:2006-07-01 00:00:00
abstract::We used behavioural observations and mitochondrial DNA (mtDNA) sequence analysis to examine demographic and genetic structure within and among home-range groups of desert bighorn sheep (Ovis canadensis) ewes in the Peninsular Ranges of southern California, USA. We identified substantial genetic variation in the first ...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.1365-294x.1999.00536.x
更新日期:1999-01-01 00:00:00
abstract::MtDNA sequencing was used to investigate the genetic population structure of Litoria pearsoniana, a wet forest-restricted hylid frog, endemic to southeast Queensland and northeast New South Wales, Australia. L. pearsoniana is regarded as endangered under Queensland legislation. Significant genetic divergence among pop...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.1365-294x.1998.00329.x
更新日期:1998-02-01 00:00:00
abstract::Effects of habitat fragmentation on genetic diversity vary among species. This may be attributed to the interacting effects of species traits and landscape structure. While widely distributed and abundant species are often considered less susceptible to fragmentation, this may be different if they are small sized and ...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2010.04877.x
更新日期:2010-11-01 00:00:00
abstract::We investigated the potential for gene flow and genetic assimilation via hybridization between common and rare species of the terrestrial orchid genus Liparis, focusing specifically on sympatric and allopatric populations of the common Liparis kumokiri and the rare Liparis makinoana. We utilized analyses of genetic di...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2005.02738.x
更新日期:2005-12-01 00:00:00
abstract::Nonrandom mating can structure populations and has important implications for population-level processes. Investigating how and why mating deviates from random is important for understanding evolutionary processes as well as informing conservation and management. Prior to the implementation of parentage analyses, unde...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.13290
更新日期:2015-08-01 00:00:00