Abstract：
:Two hundred and thirty-six mitochondrial DNA nucleotide sequences were used in combination with polymorphism at four nuclear microsatellite loci to assess the amount and distribution of genetic variation within and between African savannah elephants. They were sampled from 11 localities in eastern, western and southern Africa. In the total sample, 43 haplotypes were identified and an overall nucleotide diversity of 2.0% was observed. High levels of polymorphism were also observed at the microsatellite loci both at the level of number of alleles and gene diversity. Nine to 14 alleles per locus across populations and 44 alleles in the total sample were found. The gene diversity ranged from 0.51 to 0.72 in the localities studied. An analysis of molecular variance showed significant genetic differentiation between populations within regions and also between regions. The extent of subdivision between populations at the mtDNA control region was approximately twice as high as shown by the microsatellite loci (mtDNA F(ST) = 0.59; microsatellite R(ST) = 0.31). We discuss our results in the light of Pleistocene refugia and attribute the observed pattern to population divergence in allopatry accompanied by a recent population admixture following a recent population expansion.
journal_name
Heredity (Edinb)journal_title
Heredityauthors
Nyakaana S,Arctander P,Siegismund HRdoi
10.1038/sj.hdy.6800110keywords:
subject
Has Abstractpub_date
2002-08-01 00:00:00pages
90-8issue
2eissn
0018-067Xissn
1365-2540journal_volume
89pub_type
杂志文章相关文献
HEREDITY文献大全abstract：:Genomic selection has become a reality in plant breeding programs with the reduction in genotyping costs. Especially in maize breeding programs, it emerges as a promising tool for predicting hybrid performance. The dynamics of a commercial breeding program involve the evaluation of several traits simultaneously in a l...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/s41437-020-0321-0
更新日期：2020-08-01 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：:A technique for the examination of chromosomes in testicular material in Nucella lapillus is described. The diploid chromosome number varies between 26 and 36. Eight pairs of meatcentric chromosomes are always present and range in size from 9mu to 4mu. Additionally, 10 pairs of acrocentric chromosomes (4mu to 1mu) are...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.1975.26
更新日期：1975-04-01 00:00:00
abstract：:Recent studies in empirical population genetics have highlighted the importance of taking into account both neutral and adaptive genetic variation in characterizing microevolutionary dynamics. Here, we explore the genetic population structure and the footprints of selection in four populations of the warm-temperate co...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.2011.120
更新日期：2012-05-01 00:00:00
abstract：:Hieracium pilosella: (Asteraceae) was accidentally introduced to New Zealand about 100 years ago. Since then it has become an aggressive weed, and an unexpected degree of genetic and genome size variation has been detected; features that might result from interspecies hybridization. We investigated the possibility tha...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/sj.hdy.6800476
更新日期：2004-07-01 00:00:00
abstract：:When individuals interact, their phenotypes may be affected not only by their own genes but also by genes in their social partners. This phenomenon is known as Indirect Genetic Effects (IGEs). In aquaculture species and some plants, however, competition not only affects trait levels of individuals, but also inflates v...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/s41437-018-0068-z
更新日期：2018-12-01 00:00:00
abstract：:The 'Hill-Robertson (HR) effect' describes that linkage between sites under selection will reduce the overall effectiveness of selection in finite populations. Here we discuss the major concepts associated with the HR effect and present results of computer simulations focusing on the linkage effects generated by multi...
journal_title：Heredity
pub_type： 杂志文章,评审
doi：10.1038/sj.hdy.6801059
更新日期：2008-01-01 00:00:00
abstract：:We conducted controlled crosses in populations of the long-lived clonal shrub, Vaccinium angustifolium (lowbush blueberry) to estimate inbreeding depression and mutation parameters associated with somatic deleterious mutation. Inbreeding depression level was high, with many plants failing to set fruit after self-polli...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.2013.57
更新日期：2013-10-01 00:00:00
abstract：:Evolve and resequence (E&R) is a new approach to investigate the genomic responses to selection during experimental evolution. By using whole genome sequencing of pools of individuals (Pool-Seq), this method can identify selected variants in controlled and replicable experimental settings. Reviewing the current state ...
journal_title：Heredity
pub_type： 杂志文章,评审
doi：10.1038/hdy.2014.86
更新日期：2015-05-01 00:00:00
abstract：:Advances in the use of molecular markers to elucidate the inheritance of quantitative traits enable the integration of genetic information on physiological traits into crop growth models. The objective of this study was to assess the ability of a crop growth model with QTL-based estimates of physiological input parame...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1046/j.1365-2540.2000.00790.x
更新日期：2000-12-01 00:00:00
abstract：:Sperm competition is a potent evolutionary force shaping the reproductive biology of most animal species. Here, we estimated the heritability of sperm competition success in the promiscuous bulb mite Rhizoglyphus robini. Sperm competition success was measured with the sterile male technique as the proportion of eggs f...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/sj.hdy.6800649
更新日期：2005-06-01 00:00:00
abstract：:The estimation of heritabilities and genetic correlations is based on the assumption that the trait distributions are normal. When the distributions are not normal it is advisable to transform the data to produce normality. However, it is possible that no suitable transformation can be found. The purpose of the presen...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1046/j.1365-2540.2001.00844.x
更新日期：2001-04-01 00:00:00
abstract：:We present a study of fine-scale spatial genetic structure (SGS) and assess the impact of seed and pollen dispersal on the pattern of genetic diversity in the predominantly selfing Hordeum spontaneum. The study included (1) direct measurement of dispersal in a controlled environment, and (2) analyses of SGS and estima...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.2009.168
更新日期：2010-10-01 00:00:00
abstract：:Evolution of the rDNA spacer, ITS 2, is examined by comparing 17 DNA sequences of the ticks, Ixodes scapularis and I. pacificus. The distribution of fixed interspecific differences and the relative frequency of base changes vs. insertions/deletions (indels) matches the distribution and relative frequency for intraspec...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.1995.139
更新日期：1995-09-01 00:00:00
abstract：:Advances in sequencing technologies have revolutionized wildlife conservation genetics. Analysis of genomic data sets can provide high-resolution estimates of genetic structure, genetic diversity, gene flow, and evolutionary history. These data can be used to characterize conservation units and to effectively manage t...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/s41437-020-0315-y
更新日期：2020-09-01 00:00:00
abstract：:Variations observed in parasite virulence and host resistance may be the outcome of coevolutionary processes. Recent theoretical developments have led to a 'geographic mosaic theory' of coevolution according to which there are some localities where reciprocal selection occurs (hot spots) and others where it is strongl...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/sj.hdy.6800182
更新日期：2003-01-01 00:00:00
abstract：:Changes in chromosome number have a critical role in the evolution and formation of plant species. Triploids, which carry three complete sets of chromosomes, in particular produce offspring with different chromosome numbers, including diploid and tetraploid progeny, as well as a swarm of aneuploid progeny, which carry...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.2009.81
更新日期：2009-12-01 00:00:00
abstract：:Correlated multiple testing is widely performed in genetic research, particularly in multilocus analyses of complex diseases. Failure to control appropriately for the effect of multiple testing will either result in a flood of false-positive claims or in true hits being overlooked. Cheverud proposed the idea of adjust...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/sj.hdy.6800717
更新日期：2005-09-01 00:00:00
abstract：:Propagation, dispersal, and establishment are fundamental population processes, and are critical stages in the life cycle of an organism. In symbiotic organisms such as lichens, consisting of a fungus and a population of photobionts, reproduction is a complex process. Although many lichens are able to reproduce both s...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/sj.hdy.6800505
更新日期：2004-10-01 00:00:00
abstract：:Competition experiments between several Drosophila pseudoobscura strains that were previously subjected to periodic bottlenecks of different sizes and D. willistoni have been carried out. Contrary to previous results with these two species, where stable coexistence was detected, populations of D. pseudoobscura displac...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.1993.8
更新日期：1993-01-01 00:00:00
abstract：:Farmed fish are typically genetically different from wild conspecifics. Escapees from fish farms may contribute one-way gene flow from farm to wild gene pools, which can depress population productivity, dilute local adaptations and disrupt coadapted gene complexes. Here, we reanalyse data from two experiments (McGinni...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.2015.29
更新日期：2015-08-01 00:00:00
abstract：:Experiments were carried out to correlate the cytological localization of DNA polymerase alpha with the presence of its specific mRNA in human lymphocytes studied at different times after phytohaemagglutinin stimulation. Our data indicated that in resting cells it is not possible to detect DNA polymerase alpha protein...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.1996.123
更新日期：1996-08-01 00:00:00
abstract：:Increasing attention has been paid to the maternally inherited microbes that are capable of manipulating the reproduction of their hosts for their own benefit. Although several studies have revealed that the host genotype can affect the intensity of the manipulation, the underlying genetic basis is poorly understood. ...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.2009.14
更新日期：2009-05-01 00:00:00
abstract：:Plant breeders are supported by a range of tools that assist them to make decisions about the conduct or design of plant breeding programs. Simulations are a strategic tool that enables the breeder to integrate the multiple components of a breeding program into a number of proposed scenarios that are compared by a ran...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/s41437-018-0156-0
更新日期：2019-05-01 00:00:00
abstract：:The Hieracium and Pilosella (Lactuceae, Asteraceae) genera of closely related hawkweeds contain species with two different modes of gametophytic apomixis (asexual seed formation). Both genera contain polyploid species, and in wild populations, sexual and apomictic species co-exist. Apomixis is known to co-exist with s...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.2014.61
更新日期：2015-01-01 00:00:00
abstract：:Chromosome polymorphism in Drosophila buzzatii is under selection but the genes responsible for the effect of the inversions of fitness are unknown. On the other hand, there is evidence for selection on several allozyme loci but the presence of paracentric inversions on the second chromosome, where most of the polymor...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.1995.27
更新日期：1995-02-01 00:00:00
abstract：:We dissected the relationship between genetic differentiation (Q(ST)) for a trait and its underlying genes (G(STq), differentiation for a quantitative locus) in an evolutionary context, with the aim of identifying the conditions in which these two measurements are decoupled. We used two parameters (θ(B) and θ(W)) scal...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.2011.81
更新日期：2012-04-01 00:00:00
abstract：:Dispersal in most plants is mediated by the movement of seeds and pollen, which move genes across the landscape differently. Grevillea macleayana is a rare, fire-dependent Australian shrub with large seeds lacking adaptations for dispersal; yet it produces inflorescences adapted to pollination by highly mobile vertebr...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/sj.hdy.6800308
更新日期：2003-11-01 00:00:00
abstract：:Although allelic variants at a locus usually are expressed either dominantly or co-dominantly, there are many cases when a gene is dominantly expressed in some individuals and co-dominantly in others. We present a maximum-likelihood procedure for allele frequency estimation in such situations of "incomplete" co-domina...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.1990.114
更新日期：1990-12-01 00:00:00
abstract：:Local patterns of genetic variation were analysed in the land snail Helix aspersa for 32 populations sampled within a patchy agricultural landscape: the polders of the Bay of Mont-Saint-Michel (France). This investigation examined the allele frequencies at four enzymatic markers and five microsatellite loci through th...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/sj.hdy.6800256
更新日期：2003-06-01 00:00:00
