Abstract：
:Trichogramma wasps can be rendered asexual by infection with the maternally inherited symbiont Wolbachia. Previous studies indicate the Wolbachia strains infecting Trichogramma wasps are host-specific, inferred by failed horizontal transfer of Wolbachia to novel Trichogramma hosts. Additionally, Trichogramma can become dependent upon their Wolbachia infection for the production of female offspring, leaving them irreversibly asexual, further linking host and symbiont. We hypothesized Wolbachia strains infecting irreversibly asexual, resistant to horizontal transfer Trichogramma would show adaptation to a particular host genetic background. To test this, we mated Wolbachia-dependent females with males from a Wolbachia-naïve population to create heterozygous wasps. We measured sex ratios and fecundity, a proxy for Wolbachia fitness, produced by heterozygous wasps, and by their recombinant offspring. We find a heterozygote advantage, resulting in higher fitness for Wolbachia, as wasps will produce more offspring without any reduction in the proportion of females. While recombinant wasps did not differ in total fecundity after 10 days, recombinants produced fewer offspring early on, leading to an increased female-biased sex ratio for the whole brood. Despite the previously identified barriers to horizontal transfer of Wolbachia to and from Trichogramma pretiosum, there were no apparent barriers for Wolbachia to induce parthenogenesis in these non-native backgrounds. This is likely due to the route of infection being introgression rather than horizontal transfer, and possibly the co-evolution of Wolbachia with the mitochondria rather than the nuclear genome. These results help to elucidate the mechanisms by which Wolbachia adapt to hosts and the evolution of host-symbiont phenotypes.
journal_name
Heredity (Edinb)journal_title
Heredityauthors
Lindsey ARI,Stouthamer Rdoi
10.1038/hdy.2017.53subject
Has Abstractpub_date
2017-12-01 00:00:00pages
411-417issue
6eissn
0018-067Xissn
1365-2540pii
hdy201753journal_volume
119pub_type
杂志文章相关文献
HEREDITY文献大全abstract：:Podisma pedestris exists as both an XO and neoXY form in the Southern French Alps. These chromosome types are shown to be contiguously allopatric and hybrid populations have been located in several places. Hybridisation appears to be occurring freely, but the hybrid zones are quite narrow. In several places the two di...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.1975.108
更新日期：1975-12-01 00:00:00
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：:The importance of sexual selection in population divergence is of much interest, mainly because it is thought to cause reproductive isolation and hence could lead to speciation. Sexually selected traits have been hypothesized to diverge faster between populations than other traits, presumably because of differences in...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/sj.hdy.6800519
更新日期：2004-11-01 00:00:00
abstract：:Eukaryotic genomes frequently acquire new protein-coding genes which may significantly impact an organism's fitness. Novel genes can be created, for example, by duplication of large genomic regions or de novo, from previously non-coding DNA. Either way, creation of a novel transcript is an essential early step during ...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/s41437-020-0319-7
更新日期：2020-08-01 00:00:00
abstract：:Recent molecular evidence has shown that many MHC polymorphisms are not only shared between species but are in fact identical at the molecular level. Species that share these polymorphisms may be very distantly related and often diverged millions of generations ago. It is now known that this phenomenon is very unlikel...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.1992.39
更新日期：1992-03-01 00:00:00
abstract：:Whether or not evolution by natural selection is predictable depends on the existence of general patterns shaping the way mutations interact with the genetic background. This interaction, also known as epistasis, has been observed during adaptation (macroscopic epistasis) and in individual mutations (microscopic epist...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/s41437-018-0143-5
更新日期：2018-11-01 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：:Multicellular organisms probably originated as groups of cells formed in several ways, including cell proliferation from a group of founder cells and aggregation. Cooperation among cells benefits the group, but may be costly (altruistic) or beneficial (synergistic) to individual cooperating cells. In this paper, we st...
journal_title：Heredity
pub_type： 杂志文章,评审
doi：10.1046/j.1365-2540.2001.00808.x
更新日期：2001-01-01 00:00:00
abstract：:It has been proposed that the distribution patterns and coalescence ages found in Europeans for mitochondrial DNA (mtDNA) haplogroups V, H1 and H3 are the result of a post-glacial expansion from a Franco-Cantabrian refuge that recolonized central and northern areas. In contrast, in this refined mtDNA study of the Cant...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.2010.47
更新日期：2011-01-01 00:00:00
abstract：:The genetic differentiation of populations is usually studied by using the equilibrium theory of Wright's infinite island model. In practice, however, populations are not always in equilibrium, and the number of subpopulations is often very small. To get some insight into the dynamics of genetic differentiation of the...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.1986.109
更新日期：1986-10-01 00:00:00
abstract：:Wolbachia is an intracellular endosymbiont that induces a variety of reproductive alterations in diverse arthropods. The almond moth, Cadra cautella, is double infected with two Wolbachia variants, wCauA and wCauB, and expresses complete cytoplasmic incompatibility (CI). The individual contribution of wCauA and wCauB ...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/sj.hdy.6800737
更新日期：2005-11-01 00:00:00
abstract：:The neotropical fish, Hoplias malabaricus, is well known for its population-specific karyotypic diversity and the variation of its sex chromosomes. Seven karyomorphs (A to G) have been previously described with an XY, X(1)X(2)Y and XY(1)Y(2) sex chromosome system found in karyomorphs B, D and G, respectively. We compa...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.2010.18
更新日期：2010-12-01 00:00:00
abstract：:Theory presented in a previous paper has been used to provide a description of the responses expected from selection in two or more generations of a selfing series. Optimum two-stages and multi-stage selection programmes are described, for a limited set of circumstances, and compared with the single-stage designs desc...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.1990.89
更新日期：1990-10-01 00:00:00
abstract：:The central aim of evolutionary biology is to understand patterns of genetic variation between species and within populations. To quantify the genetic variation underlying intraspecific differences, estimating quantitative genetic parameters of traits is essential. In Pterygota, wing morphology is an important trait a...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/s41437-020-0318-8
更新日期：2020-08-01 00:00:00
abstract：:Comprehensive long-term studies of isolated populations provide valuable comparative data that may be used to evaluate different methods for quantifying the relationship between genetic diversity and fitness. Here, we report on data collected from large and well-characterized cohorts of the two numerically dominant sp...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/sj.hdy.6800409
更新日期：2004-04-01 00:00:00
abstract：:Stable hybrid zones in which ecologically divergent taxa give rise to a range of recombinants are natural laboratories in which the genetic basis of adaptation and reproductive isolation can be unraveled. One such hybrid zone is formed by the fire-bellied toads Bombina bombina and B. variegata (Anura: Discoglossidae)....
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/sj.hdy.6800291
更新日期：2003-08-01 00:00:00
abstract：:How does genetic diversity within populations of plants develop during primary succession on alpine glacier forelands? Theory predicts that pioneer populations are characterized by low genetic diversity due to founder effects and that genetic diversity increases within populations as they mature and recurrent gene flo...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.2008.8
更新日期：2008-05-01 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：:Genetic diversity is a fundamental requirement for evolution and adaptation. Nonetheless, the forces that maintain patterns of genetic variation in wild populations are not completely understood. Neutral theory posits that genetic diversity will increase with a larger effective population size and the decreasing effec...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.2015.76
更新日期：2016-01-01 00:00:00
abstract：:Six populations of Trimerotropis pallidipennis located along an altitudinal gradient in the Antinaco-Los Colorados valley (La Rioja, Argentina), were cytologically analysed. The male karyotype consists of 23 chromosomes (22 + XO) with three long pairs submetacentric, the X-chromosome metacentric and the remaining ones...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.1989.14
更新日期：1989-02-01 00:00:00
abstract：:Heterozygotes are assumed to mate with a frequency that is any general function, f(v), of their population frequency, v. Models are analysed in which the selection that determines the function f(v) acts either on one sex alone or on both sexes equally. The central equilibrium point v* = 1/2 always exists; it is stable...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.1981.59
更新日期：1981-08-01 00:00:00
abstract：:To address the multiple challenges to food security posed by global climate change, population growth and rising incomes, plant breeders are developing new crop varieties that can enhance both agricultural productivity and environmental sustainability. Current breeding practices, however, are unable to keep pace with ...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.2015.113
更新日期：2016-04-01 00:00:00
abstract：:Spatial patterns of genetic variation can reveal otherwise cryptic evolutionary and landscape processes. In northwestern Costa Rica, an approximately concordant genetic discontinuity occurs among populations of several plant species. We conducted phylogeographic analyses of an epiphytic orchid, Brassavola nodosa, to t...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/s41437-019-0218-y
更新日期：2019-11-01 00:00:00
abstract：:Studies of organisms on 'terrestrial islands' can improve our understanding of two unresolved issues in evolutionary genetics: the likely long-term effects of habitat fragmentation and the genetic underpinnings of continental species radiations in island-like terrestrial habitats. We have addressed both issues for fou...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.2008.65
更新日期：2008-09-01 00:00:00
abstract：:Genetic analyses of population structure can be placed in explicit environmental contexts if appropriate environmental data are available. Here, we use high-coverage and high-resolution oceanographic and genetic sequence data to assess population structure patterns and their potential environmental influences for hump...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.2011.21
更新日期：2011-10-01 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：:How do morphological differences between species evolve at the genetic level? This study investigates the genetic basis of recent divergence in male wing size between species of the model parasitoid wasp Nasonia. The forewings of flightless Nasonia vitripennis males are 2.3 times smaller than males of their flighted s...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.2009.146
更新日期：2010-03-01 00:00:00
abstract：:The hypothesis that traits closely associated with fitness will generally possess lower heritabilities than traits more loosely connected with fitness is tested using 1120 narrow sense heritability estimates for wild, outbred animal populations, collected from the published record. Our results indicate that life histo...
journal_title：Heredity
pub_type： 杂志文章,评审
doi：10.1038/hdy.1987.113
更新日期：1987-10-01 00:00:00
abstract：:The phytophagous insects that damage crops are often polyphagous, feeding on several types of crop and on weeds. The refuges constituted by noncrop host plants may be useful in managing the evolution in pest species of resistance to the Bacillus thuringiensis toxins produced by transgenic crops. However, the benefits ...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/sj.hdy.6800186
更新日期：2003-02-01 00:00:00
abstract：:Restriction endonuclease variation in the 12 kb region surrounding the Adh locus was measured in seven Australian and six Chinese populations of Drosophila melanogaster. There is a higher level of nucleotide-substitution variation in the Australian populations than in the Chinese, which is possibly a reflection of the...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.1992.1
更新日期：1992-01-01 00:00:00
