Abstract:
:The ecological theory of adaptive radiation predicts that the evolution of phenotypic diversity within species is generated by divergent natural selection arising from different environments and competition between species. Genetic connectivity among populations is likely also to have an important role in both the origin and maintenance of adaptive genetic diversity. Our goal was to evaluate the potential roles of genetic connectivity and natural selection in the maintenance of adaptive phenotypic differences among morphs of Arctic charr, Salvelinus alpinus, in Iceland. At a large spatial scale, we tested the predictive power of geographic structure and phenotypic variation for patterns of neutral genetic variation among populations throughout Iceland. At a smaller scale, we evaluated the genetic differentiation between two morphs in Lake Thingvallavatn relative to historically explicit, coalescent-based null models of the evolutionary history of these lineages. At the large spatial scale, populations are highly differentiated, but weakly structured, both geographically and with respect to patterns of phenotypic variation. At the intralacustrine scale, we observe modest genetic differentiation between two morphs, but this level of differentiation is nonetheless consistent with strong reproductive isolation throughout the Holocene. Rather than a result of the homogenizing effect of gene flow in a system at migration-drift equilibrium, the modest level of genetic differentiation could equally be a result of slow neutral divergence by drift in large populations. We conclude that contemporary and recent patterns of restricted gene flow have been highly conducive to the evolution and maintenance of adaptive genetic variation in Icelandic Arctic charr.
journal_name
Heredity (Edinb)journal_title
Heredityauthors
Kapralova KH,Morrissey MB,Kristjánsson BK,Olafsdóttir GÁ,Snorrason SS,Ferguson MMdoi
10.1038/hdy.2010.161subject
Has Abstractpub_date
2011-03-01 00:00:00pages
472-87issue
3eissn
0018-067Xissn
1365-2540pii
hdy2010161journal_volume
106pub_type
杂志文章相关文献
HEREDITY文献大全abstract::Flowering time differences between metal-tolerant and nontolerant populations of the grass Anthoxanthum odoratum growing across a mine boundary have persisted for over 40 years. These flowering time differences result in a high degree of prezygotic genetic isolation (isolation index=0.43) between the tolerant mine pop...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/sj.hdy.6800835
更新日期:2006-07-01 00:00:00
abstract::A type of lower motor neuron (LMN) disease inherited as autosomal recessive in Romney sheep was characterized with normal appearance at birth, but with progressive weakness and tetraparesis after the first week of life. Here, we carried out genome-wide homozygosity mapping using Illumina Ovine SNP50 BeadChips on lambs...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/hdy.2012.23
更新日期:2012-09-01 00:00:00
abstract::Paternity analysis based on eight microsatellite loci was used to investigate pollen and seed dispersal patterns of the dioecious wind-pollinated tree, Araucaria angustifolia. The study sites were a 5.4 ha isolated forest fragment and a small tree group situated 1.7 km away, located in Paranalpha State, Brazil. In the...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/sj.hdy.6801019
更新日期:2007-12-01 00:00:00
abstract::Island colonisation by animal populations is often associated with dramatic shifts in body size. However, little is known about the rates at which these evolutionary shifts occur, under what precise selective pressures and the putative role played by adaptive plasticity on driving such changes. Isolation time played a...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/hdy.2014.65
更新日期:2015-10-01 00:00:00
abstract::Drosophila mauritiana larvae are tolerant to ethanol as a supplementary nutritional resource at low concentrations. Higher levels of ethanol (5 per cent) in the food adversely affect larval behaviour causing reduced rates of locomotion and feeding which are associated with low larva-to-adult survival. Two codominant a...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/hdy.1995.61
更新日期:1995-04-01 00:00:00
abstract::The theoretical impacts of anthropogenic habitat degradation on genetic resources have been well articulated. Here we use a simulation approach to assess the magnitude of expected genetic change, and review 31 studies of 23 neotropical tree species to assess whether empirical case studies conform to theory. Major diff...
journal_title:Heredity
pub_type: 杂志文章,评审
doi:10.1038/sj.hdy.6800725
更新日期:2005-10-01 00:00:00
abstract::Empirical evidence is mounting to suggesting that genetic correlations between life-history traits are environment specific. However, detailed knowledge about the loci underlying genetic correlations in different environments is scant. Here, we studied the influence of temperature (12 degrees C and 24 degrees C) on th...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/sj.hdy.6800929
更新日期:2007-04-01 00:00:00
abstract::North Africa is now recognized as a major area for the emergence and dispersal of anatomically modern humans from at least 315 kya. The Mediterranean Basin is thus particularly suited to study the role of climate versus human-mediated changes on the evolutionary history of species. The Algerian mouse (Mus spretus Lata...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/s41437-018-0089-7
更新日期:2019-02-01 00:00:00
abstract::To confirm whether sex-linked genes of the silkworm are dosage compensated or not, we investigated three RAPDs and one RFLP marker which have been mapped to the Z chromosome as candidate genes to test for dosage compensation. Northern blot analysis demonstrated that one of the RAPDs, T15.180a, is transcribed into seve...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1046/j.1365-2540.1998.00356.x
更新日期:1998-09-01 00:00:00
abstract::Knowing the variances and heritabilities (h(2)) of life history traits in populations living under natural conditions is necessary for a mechanistic understanding of respective evolutionary processes. I estimated heritabilities of several life history traits, including dispersal rate, body mass, age at first reproduct...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/sj.hdy.6801056
更新日期:2008-01-01 00:00:00
abstract::A high-resolution transcript linkage map of barley was created using a single doubled haploid (DH) mapping population, only 3'-end expressed sequence tags (ESTs) and only PCR-based assays. Cultivar 'Haruna Nijo' and an ancestral wild-form accession 'H602' were used as EST donors and crossing parents of the mapping pop...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/hdy.2009.57
更新日期:2009-08-01 00:00:00
abstract::Geographical patterns of gene flow and drift were analysed in the commensal cellar spider Pholcus phalangioides to get insight into the causes affecting genetic variation in this species strictly associated with man. Our sampling consisted of 23 subpopulations collected over five urban regions in central Europe (dista...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1046/j.1365-2540.2001.00815.x
更新日期:2001-01-01 00:00:00
abstract::SINE sequences are interspersed throughout virtually all eukaryotic genomes. In the family Salmonidae three families of SINEs have been identified. In this work we have attempted to characterize and locate by means of fluorescent in situ hybridization (FISH) one of these families (HpaI) in the genome of Atlantic salmo...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/sj.hdy.6886210
更新日期:1999-11-01 00:00:00
abstract::The highly diverse genes of the major histocompatibility complex (MHC) are important in the adaptive immune system and are expected to be under selection from pathogens. Thus, the MHC genes provide an exceptional opportunity to investigate patterns of selection within and across populations. In this study, we analyzed...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/hdy.2009.99
更新日期:2010-02-01 00:00:00
abstract::Distinguishing genetically differentiated populations within hybrid zones and determining the mechanisms by which introgression occurs are crucial for setting effective conservation policy. Extensive hybridization among grey wolves (Canis lupus), eastern wolves (C. lycaon) and coyotes (C. latrans) in eastern North Ame...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/hdy.2010.6
更新日期:2010-12-01 00:00:00
abstract::Cuticular colour in the mealworm beetle (Tenebrio molitor) is a quantitative trait, varying from tan to black. Population level variation in cuticular colour has been linked to pathogen resistance in this species and in several other insects: darker individuals are more resistant to pathogens. Given that cuticular col...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/sj.hdy.6800675
更新日期:2005-06-01 00:00:00
abstract::Genomic selection (GS) potentially offers an unparalleled advantage over traditional pedigree-based selection (TS) methods by reducing the time commitment required to carry out a single cycle of tree improvement. This quality is particularly appealing to tree breeders, where lengthy improvement cycles are the norm. We...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/hdy.2015.57
更新日期:2015-12-01 00:00:00
abstract::Galton's ancestral law states that the two parent contribute between them on average one-half of the total heritage of the offspring, the four grandparents one-quarter, and so on. He interpreted this law both as a representation of the separate contributions of each ancestor to the heritage of the offspring and as a m...
journal_title:Heredity
pub_type: 传,历史文章,杂志文章
doi:10.1046/j.1365-2540.1998.00418.x
更新日期:1998-11-01 00:00:00
abstract::In early 1992, the European bumblebee, Bombus terrestris, was first seen in Tasmania and currently has spread to most of the island. Here, we report on the genetic structure, using micro-satellites, of the invading population from samples collected in the years 1998-2000, a few years after the first sighting of the sp...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/sj.hdy.6801017
更新日期:2007-10-01 00:00:00
abstract::The activity of transposable elements can be induced by environmental and population factors and in particular by stresses in various organisms. A consequence of the increase in transposable element mobility is the creation of new genetic variability that can be useful in the face of stressful conditions. In this revi...
journal_title:Heredity
pub_type: 杂志文章,评审
doi:10.1046/j.1365-2540.2000.00751.x
更新日期:2000-08-01 00:00:00
abstract::F-statistics were employed to analyse quantitative and allozyme variation among 19 native populations of maritime pine (Pinus pinaster Ait.). Fourteen polymorphic allozyme loci were used to provide an empirical basis for constructing a null hypothesis to test natural selection as a determinant of quantitative evolutio...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/sj.hdy.6800114
更新日期:2002-09-01 00:00:00
abstract::Host-plant resistance is an effective method for controlling soybean aphid (Aphis glycines Matsumura), the most damaging insect pest of soybean (Glycine max (L.) Merr.) in North America. Recently, resistant soybean lines have been discovered and at least four aphid resistance genes (Rag1, Rag2, Rag3 and rag4) have bee...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/hdy.2013.10
更新日期:2013-07-01 00:00:00
abstract::Habitat fragmentation is a major cause of biodiversity loss, responsible for an alteration of intraspecific patterns of neutral genetic diversity and structure. Although neutral genetic variation can be informative for demographic inferences, it may be a poor predictor of adaptive genetic diversity and thus of the con...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/s41437-020-00366-w
更新日期:2021-01-01 00:00:00
abstract::A model involving a specific pairing of homologous double-stranded nucleic acid molecules is applied to some parts of genetic recombination. The most original features of this application of the model relate to the initiation process, a part of which can be described by a highly compact and symmetrical structure. The ...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/hdy.1977.39
更新日期:1977-08-01 00:00:00
abstract::We investigated genetic diversity among and within natural populations of Asian common wild rice, Oryza rufipogon, from three different classes of data: quantitative traits, allozymes, and restriction fragment length polymorphisms (RFLPs). The seven populations examined showed polymorphism to varying degrees. The amou...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/sj.hdy.6800435
更新日期:2004-05-01 00:00:00
abstract::Prevention of malaria transmission throughout much of Africa is dependent on bednets that are impregnated with pyrethroid insecticides. Anopheles arabiensis is the major malaria vector in Chad and efforts to control this vector are threatened by the emergence of pyrethroid resistance. WHO bioassays revealed that An. a...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/hdy.2012.112
更新日期:2013-04-01 00:00:00
abstract::The mechanisms by which paternal inheritance of mitochondrial DNA (mtDNA) (paternal leakage) and, subsequently, recombination of mtDNA are prevented vary in a species-specific manner with one mechanism in common: paternally derived mtDNA is assumed to be vastly outnumbered by maternal mtDNA in the zygote. To date, thi...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/hdy.2008.74
更新日期:2008-11-01 00:00:00
abstract::"Parent-offspring conflict" is a theoretical concept proposing that siblings are selected to be slightly more greedy with each other than parents are selected to tolerate. This paper extends a class of previous models of parent-offspring conflict by introducing a new and more realistic dimension to the analysis: the a...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/hdy.1985.65
更新日期:1985-08-01 00:00:00
abstract::Parasitic wasps (parasitoids) use volatiles from the plants infested by phytophagous insects to locate host herbivores, but their behavioural response to such semiochemicals is highly variable. Bi-directional selection on Cotesia glomerata (Hymenoptera: Braconidae) was conducted to investigate the importance of geneti...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/sj.hdy.6800340
更新日期:2003-10-01 00:00:00
abstract::The transport of desert soil into the atmosphere during desert sandstorms can affect the Earth's climate and environmental health. Asian desert sandstorms occur almost every year during the Spring, as the atmosphere in the Northern hemisphere warms. It is conceivable that these Asian desert sandstorms may transport mi...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/hdy.2014.102
更新日期:2015-05-01 00:00:00