Abstract:
:Genetic differentiation in thermal adaptation can result from a trade-off between the performance of organisms across different temperatures or from the accumulation of deleterious mutations. In this experiment, we assayed thermal sensitivity of 138 genetically distinct Mycosphaerella graminicola isolates sampled from five host populations in four locations under two temperature regimes (22 and 15 °C) and found significant differences in growth rate and response to temperature among populations. On average, genetic differentiation accounted for more than 50% of phenotypic variation in thermal adaptation while plasticity contributed less than a quarter of phenotypic variation. Populations originating from warm places performed better under the high-temperature regime and had a larger positive response to increasing temperature. Pairwise population differentiation (Q(ST) ) in temperature sensitivity, measured by taking the ratio of growth rates at 22 to 15 °C, was positively and significantly correlated to the pairwise difference in annual mean temperature at the collection sites. Because overall Q(ST) in temperature sensitivity was significantly higher than overall G(ST) in neutral restriction fragment length polymorphism loci, we believe that the primary mechanism underlying this thermal adaptation is antagonistic pleiotropy. Our results indicate that temperature sensitivity is a better indicator of thermal adaptation than growth rate at individual temperatures.
journal_name
Mol Ecoljournal_title
Molecular ecologyauthors
Zhan J,McDonald BAdoi
10.1111/j.1365-294X.2011.05023.xsubject
Has Abstractpub_date
2011-04-01 00:00:00pages
1689-701issue
8eissn
0962-1083issn
1365-294Xjournal_volume
20pub_type
杂志文章abstract::An electrophoretic survey of 81 populations of arctic Daphnia pulex from around the Svalbard archipelago revealed the presence of 49 unique allozyme clones (N = 3357). Two closely related clones accounted for 66% of the total sample, and were widespread across the archipelago. Restriction fragment length polymorphisms...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294x.1994.tb00128.x
更新日期:1994-10-01 00:00:00
abstract::Global warming has had numerous effects on populations of animals and plants, with many species in temperate regions experiencing environmental change at unprecedented rates. Populations with low potential for adaptive evolutionary change and plasticity will have little chance of persistence in the face of environment...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2007.03436.x
更新日期:2008-01-01 00:00:00
abstract::Sixty-four samples from 46 salmon populations totalling 2369 specimens were used for polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analysis of the mitochondrial ND1 region. The final analyses included 3095 specimens from 60 populations in Northern Europe. A subsample was analysed by RFL...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.1365-294x.2001.01168.x
更新日期:2001-01-01 00:00:00
abstract::Protists, the most diverse eukaryotes, are largely considered to be free-living bacterivores, but vast numbers of taxa are known to parasitize plants or animals. High-throughput sequencing (HTS) approaches now commonly replace cultivation-based approaches in studying soil protists, but insights into common biases asso...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.13238
更新日期:2015-09-01 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::Microbes have evolved ways of interference competition to gain advantage over their ecological competitors. The use of secreted killer toxins by yeast cells through acquiring double-stranded RNA viruses is one such prominent example. Although the killer behaviour has been well studied in laboratory yeast strains, our ...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.13310
更新日期:2015-08-01 00:00:00
abstract::Parents can have profound effects on offspring fitness. Little, however, is known about the mechanisms through which parental genetic variation influences offspring physiology in natural systems. White-throated sparrows (Zonotrichia albicollis, WTSP) exist in two genetic morphs, tan and white, controlled by a large po...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.15205
更新日期:2019-09-01 00:00:00
abstract::As part of a large project to determine rooting depth and resource uptake on the Edwards Plateau of central Texas, we developed a DNA-based technique that allows the below-ground parts of all plants to be identified to the level of genus and usually to species. Identification is achieved by comparing DNA sequences of ...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.1365-294x.2000.01034.x
更新日期:2000-10-01 00:00:00
abstract::Hybridization among conspecifics in native and introduced habitats has important implications for biological invasions in new ecosystems. Bighead (Hypophthalmichthys nobilis) and silver carp (H. molitrix) are genetically isolated and occur in sympatry within their native range. Following their introduction to North Am...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.13285
更新日期:2015-08-01 00:00:00
abstract::The climbing orchid Erythrorchis altissima is the largest mycoheterotroph in the world. Although previous in vitro work suggests that E. altissima has a unique symbiosis with wood-decaying fungi, little is known about how this giant orchid meets its carbon and nutrient demands exclusively via mycorrhizal fungi. In thi...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.14524
更新日期:2018-03-01 00:00:00
abstract::Speciation remains a central enigma in biology, and nowhere is this more apparent than in shallow tropical seas where biodiversity rivals that of tropical rainforests. Obvious barriers to gene flow are few and most marine species have a highly dispersive larval stage, which should greatly decrease opportunities for sp...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2011.05081.x
更新日期:2011-05-01 00:00:00
abstract::Habitat fragmentation is one of the major contributors to the loss of biodiversity worldwide. However, relatively little is known about its more immediate impacts on within-patch population processes such as social structure and mating systems, whose alteration may play an important role in extinction risk. We investi...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2005.02535.x
更新日期:2005-05-01 00:00:00
abstract::The host-associated microbiome is increasingly recognized as a critical player in health and immunity. Recent studies have shown that disruption of commensal microbial communities can contribute to disease pathogenesis and severity. Santa Catalina Island foxes (Urocyon littoralis catalinae) present a compelling system...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.15325
更新日期:2020-04-01 00:00:00
abstract::Bumble bees represent a taxon with an intermediate level of eusociality within Hymenoptera. The clear division of reproduction between a single founding queen and the largely sterile workers is characteristic for highly eusocial species, whereas the morphological similarity between the bumble bee queen and the workers...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.13215
更新日期:2015-06-01 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 present a mitochondrial DNA (mtDNA) haplotype phylogeny for Amazonian Anolis lizards, including geographical sampling within four species distributed across the Amazon basin (A. fuscoauratus, A. nitens, A. ortonii and A. punctatus). Approximately 1500 bp of mtDNA encoding ND2, COI and four transfer RNAs (tRNAs) are...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.0962-1083.2001.01393.x
更新日期:2001-11-01 00:00:00
abstract::As natural selection must act on underlying genetic variation, discovering the number and location of loci under the influence of selection is imperative towards understanding adaptive divergence in evolving populations. Studies employing genome scans have hypothesized that the action of divergent selection should red...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2004.02396.x
更新日期:2005-02-01 00:00:00
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::We report the phylogeographic pattern of the Patagonian and Subantarctic plant Hypochaeris incana endemic to southeastern South America. We applied amplified fragment length polymorphism (AFLP) and chloroplast DNA (cpDNA) analysis to 28 and 32 populations, respectively, throughout its distributional range and assessed...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2009.04298.x
更新日期:2009-09-01 00:00:00
abstract::Widely distributed taxa provide an opportunity to compare biogeographic responses to climatic fluctuations on multiple continents and to investigate speciation. We conducted the most geographically and genomically comprehensive study to date of the red fox (Vulpes vulpes), the world's most widely distributed wild terr...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.12898
更新日期:2014-10-01 00:00:00
abstract::Gene transcription variation is known to contribute to disease susceptibility and adaptation, but we currently know very little about how contemporary natural selection shapes transcript abundance. Here, we propose a novel analytical framework to quantify the strength and form of ongoing natural selection at the trans...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.15743
更新日期:2020-11-20 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::In the last few years microsatellites have become one of the most popular molecular markers used with applications in many different fields. High polymorphism and the relative ease of scoring represent the two major features that make microsatellites of large interest for many genetic studies. The major drawback of mi...
journal_title:Molecular ecology
pub_type: 杂志文章,评审
doi:10.1046/j.0962-1083.2001.01418.x
更新日期:2002-01-01 00:00:00
abstract::As modern genomic tools are developed for ecologically compelling models, field manipulation experiments will become important for establishing the role of functional genomic variation in physiological acclimation and evolutionary adaptation along environmental clines. High-altitude habitats expose individuals to hypo...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2008.03942.x
更新日期:2008-10-01 00:00:00
abstract::Aphis gossypii is an aphid species that is found throughout the world and is extremely polyphagous. It is considered a major pest of cotton and cucurbit species. In Europe, A. gossypii is assumed to reproduce exclusively by apomictic parthenogenesis. The present study investigates the genetic diversity of A. gossypii ...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.1365-294x.1999.00782.x
更新日期:1999-11-01 00:00:00
abstract::Species may often exhibit geographic variation in population genetic structure due to contemporary and historical variation in population size and gene flow. Here, we test the predictions that populations on the margins of a species' distribution contain less genetic variation and are more differentiated than populati...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2007.03241.x
更新日期:2007-04-01 00:00:00
abstract::Divergent life history strategies occur in steelhead or rainbow trout Oncorhynchus mykiss, and many populations produce both migrant (anadromous fish that move to the ocean after rearing) and resident (do not migrate and remain in fresh water) individuals. Mechanisms leading to each type are only partially understood;...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.12713
更新日期:2014-04-01 00:00:00
abstract::Interbreeding species often produce low-fitness hybrids due to genetic incompatibilities between parental genomes. Whether these incompatibilities reflect fixed allelic differences between hybridizing species, or, alternatively, standing variants that segregate within them, remains unknown for many natural systems. Ye...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.15246
更新日期:2019-10-01 00:00:00
abstract::Most emerging pathogens can infect multiple species, underlining the importance of understanding the ecological and evolutionary factors that allow some hosts to harbour greater infection prevalence and share pathogens with other species. However, our understanding of pathogen jumps is based primarily around viruses, ...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.15422
更新日期:2020-04-01 00:00:00
abstract::Genetic variation is of key importance for a species' evolutionary potential, and its estimation is a major component of conservation studies. New DNA sequencing technologies have enabled the analysis of large portions of the genome in nonmodel species, promising highly accurate estimates of such population genetic pa...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.12636
更新日期:2014-02-01 00:00:00