Abstract：
:There are only few studies of dominance effects in non-inbred aquaculture species, since commonly used mating designs often have low power to separate dominance, maternal and common environmental effects. Here, a factorial design with reciprocal cross, common rearing of eggs and subsequent lifecycle stages and pedigree assignment using DNA microsatellites was used to separate these effects and estimate dominance (d2) and maternal (m2) ratios in Nile tilapia for six commercial traits. The study included observations on 2524 offspring from 155 full-sib families. Substantial contributions of dominance were observed (P < 0.05) for body depth (BD) and body weight at harvest (BWH) with estimates of d2 = 0.27 (s.e. 0.09) and 0.23 (s.e. 0.09), respectively in the current breeding population. In addition the study found maternal variance (P < 0.05) for BD, BWH, body thickness and fillet weight explaining ~10% of the observed phenotypic variance. For fillet yield (FY) and body length (BL), no evidence was found for either maternal or dominance variance. For traits exhibiting maternal variance, including this effect in evaluations caused substantial re-ranking of selection candidates, but the impact of including dominance effects was notably less. Breeding schemes may benefit from utilising maternal variance in increasing accuracy of evaluations, reducing bias, and developing new lines, but the utilisation of the dominance variance may require further refinement of parameter estimates.
journal_name
Heredity (Edinb)journal_title
Heredityauthors
Joshi R,Woolliams JA,Meuwissen T,Gjøen HMdoi
10.1038/s41437-017-0046-xsubject
Has Abstractpub_date
2018-05-01 00:00:00pages
452-462issue
5eissn
0018-067Xissn
1365-2540pii
10.1038/s41437-017-0046-xjournal_volume
120pub_type
杂志文章相关文献
HEREDITY文献大全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：:The theory, construction and optimization of a model of chromosome pairing in triploid hybrids are re-examined and the model reconstructed. A new approach to optimization is described that removes a bias in the estimation of x, the measure of relative affinity, by weighting the observed and calculated meiotic figure f...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.1992.16
更新日期：1992-02-01 00:00:00
abstract：:Echinoderms represent a researchable subset of a dynamic larval evolutionary cosmos. Evolution of echinoderm larvae has taken place over widely varying time scales from the origins of larvae of living classes in the early Palaeozoic, approximately 500 million years ago, to recent, rapid and large-scale changes that ha...
journal_title：Heredity
pub_type： 杂志文章,评审
doi：10.1038/sj.hdy.6800866
更新日期：2006-09-01 00:00:00
abstract：:Twenty-eight spontaneous alterations modifying the hybridization banding pattern of six families of transposable elements (297, Foldback, copia, jockey, P and hobo) have been fixed in a set of mutation-accumulation lines of Drosophila melanogaster. Their effect on fitness has been studied by competition with the origi...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1046/j.1365-2540.1999.00590.x
更新日期：1999-12-01 00:00:00
abstract：:Lung cancer is the leading cause of cancer deaths in both men and women in the US. While most sporadic lung cancer cases are related to environmental factors such as smoking, genetic susceptibility may also play an important role and a number of lung cancer associated single-nucleotide polymorphisms (SNPs) have been i...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/s41437-018-0063-4
更新日期：2018-12-01 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：:Understanding how geographical and environmental features affect genetic variation at both the population and individual levels is crucial in biology, especially in the case of pathogens. However, distinguishing between these factors and the effects of historical range expansion on spatial genetic structure remains ch...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.2012.55
更新日期：2013-01-01 00:00:00
abstract：:The expression of three putative QTL for upper thermal tolerance (UTT) was examined in two strains of outbred rainbow trout unselected for this trait using simple-sequence repeat (SSR; microsatellite) markers associated with UTT in backcrosses of lines selected on this trait. Two-way diallel lots in the third generati...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1046/j.1365-2540.2001.00838.x
更新日期：2001-03-01 00:00:00
abstract：:The long generation time and large effective size of widespread forest tree species can result in slow evolutionary rate and incomplete lineage sorting, complicating species delimitation. We addressed this issue with the African timber tree genus Milicia that comprises two morphologically similar and often confounded ...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.2014.5
更新日期：2014-07-01 00:00:00
abstract：:In the past, numerous Cf genes have been reported in tomato (Lycopersicon esculentum Mill.) that confer resistance against leaf mould (Cladosporium fulvum Cke.). We are interested in genetic variation at Cf loci. Therefore, previously uncharacterized Cf genes were further analysed. Recognition of the AVR4 elicitor, DN...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1046/j.1365-2540.2000.00754.x
更新日期：2000-09-01 00:00:00
abstract：:Genetic segregation was studied in more than 1900 seedlings of an F2 between the maize (Zea mays L.) inbred lines T232 and CM37. Significant segregation distortion was observed at 11 of 17 segregating allozyme loci and at a single morphological marker locus distributed on 7 of the 10 chromosomes in the genome. Deviati...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.1987.44
更新日期：1987-04-01 00:00:00
abstract：:We have studied in Drosophila melanogaster the effects of allozyme variation at the alpha Gpdh and Adh loci on the following fitness components: female fecundity, egg hatchability, egg-to-adult survival under near-optimal and competitive conditions, rate of development under near-optimal and competitive conditions, an...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.1989.108
更新日期：1989-12-01 00:00:00
abstract：:For morphological traits that are negatively correlated, the genetic correlation (rg) between them might strongly influence patterns of morphological divergence and shape. Here, the pattern of divergence between two sibling species of cactophilic Drosophila, D. buzzatii and D. koepferae, is examined for two traits tha...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1046/j.1365-2540.2000.00735.x
更新日期：2000-08-01 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：:Determination of mammalian sex depends on the presence or absence of a functional testis. Testes are determined by the activity of the testis determining factor encoded by the sex determining gene, Y (SRY) located on the Y chromosome. Considerable evidence suggests that the SRY gene is the only gene on the Y chromosom...
journal_title：Heredity
pub_type： 杂志文章,评审
doi：10.1038/hdy.1995.179
更新日期：1995-12-01 00:00:00
abstract：:Allele frequency differences between sexes and an excess of heterozygotes in males had suggested that the PEPB-1 locus is sex-linked in chinook salmon (Oncorhynchus tshawytscha). We here estimate less than 1% recombination between PEPB-1 and a growth hormone pseudogene known to be in the sex-determining region (SEX) i...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/sj.hdy.6800483
更新日期：2004-07-01 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：:Infectious diseases have a huge impact on animal health, production and welfare, and human health. Understanding the role of host genetics in disease spread is important for developing disease control strategies that efficiently reduce infection incidence and risk of epidemics. While heritable variation in disease sus...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/s41437-018-0176-9
更新日期：2019-06-01 00:00:00
abstract：:A long series of studies on mice has shown that mate choice decisions can be made on the basis of individual genotype at the major histocompatibility complex (MHC), which accords well with the importance of immunocompetence in some theories of sexual selection. Recent work on other vertebrate species, including humans...
journal_title：Heredity
pub_type： 杂志文章,评审
doi：10.1046/j.1365-2540.1998.00428.x
更新日期：1998-08-01 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：:Natural populations of the arctic fox (Alopex lagopus, Canidae, Carnivora) differ drastically in their reproductive strategy. Coastal foxes, which depend on stable food resources, produce litters of moderate size. Inland foxes feed on small rodents, whose populations are characterized by cycling fluctuation. In the ye...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/sj.hdy.6800908
更新日期：2007-02-01 00:00:00
abstract：:Many traits including shapes and colors of flowers, fruits and seeds in plants, as well as coat colors and some behavioral properties in animals, are recorded in discrete categories. If categories are ordered, genetic analyses of the categorical traits are often performed using the threshold model, which considers a l...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/sj.hdy.6800783
更新日期：2006-02-01 00:00:00
abstract：:A conspicuous shell polychromatism is observed in colonies of Cepaea nemoralis from western France (Brittany). The present study is intended to search for a spatial structure of shell features at this scale and to infer evolutionary processes from the observed patterns. We used a database of morph frequencies (six com...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/sj.hdy.6800012
更新日期：2002-01-01 00:00:00
abstract：:Using fast-evolving microsatellites, more slowly evolving ITS markers and performing habitat analyses, we demonstrated a drastic genetic divergence and significant habitat differentiation between early- and late-flowering variants of plants morphologically belonging to Gymnadenia conopsea ssp conopsea. The two phenolo...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/sj.hdy.6800334
更新日期：2003-09-01 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：: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 becom...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.2017.53
更新日期：2017-12-01 00:00:00
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：:Indirect genetic effects (IGE) occur when the genotype of an individual affects the phenotypic trait value of another conspecific individual. IGEs can have profound effects on both the magnitude and the direction of response to selection. Models of inheritance and response to selection in traits subject to IGEs have b...
journal_title：Heredity
pub_type： 杂志文章,评审
doi：10.1038/hdy.2013.15
更新日期：2014-01-01 00:00:00
abstract：:An examination of the chiasma distribution in chromosome 1 of male mice homozygous and heterozygous for a distal inversion In(1) 12Rk and in normal males was carried out. No differences in chiasma distribution were found between homozygotes for the inversion and homozygotes for normal chromosome 1. A significant decre...
journal_title：Heredity
pub_type： 杂志文章
doi：10.1038/hdy.1991.55
更新日期：1991-06-01 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
