Inbreeding and inbreeding depression of early life traits in a cooperative mammal

@article{Nielsen2012InbreedingAI,
  title={Inbreeding and inbreeding depression of early life traits in a cooperative mammal},
  author={Johanna F{\o}nss Nielsen and Sinead English and W. P. Goodall-Copestake and Jinlian Wang and Craig A. Walling and Andrew W. Bateman and Tom P Flower and ROBERT L. Sutcliffe and Jamie Samson and Nathan K. Thavarajah and Loeske E. B. Kruuk and Tim H. Clutton‐Brock and Josephine M. Pemberton},
  journal={Molecular Ecology},
  year={2012},
  volume={21}
}
Mating between relatives often results in negative fitness consequences or inbreeding depression. However, the expression of inbreeding in populations of wild cooperative mammals and the effects of environmental, maternal and social factors on inbreeding depression in these systems are currently not well understood. This study uses pedigree‐based inbreeding coefficients from a long‐term study of meerkats (Suricata suricatta) in South Africa to reveal that 44% of the population have detectably… Expand
Genetic architecture and lifetime dynamics of inbreeding depression in a wild mammal
TLDR
Long-term life-history data with 417K imputed SNP genotypes for 5,952 wild Soay sheep are combined to explore inbreeding depression on a key fitness component, annual survival, and a genome-wide association scan on ROH shows that many loci with small effects and five loca with larger effects contribute to inbreeding depressed in survival. Expand
Inbreeding and inbreeding depression in endangered red wolves (Canis rufus)
TLDR
The evaluation of inbreeding and inbreeding depression in a small, re‐introduced population of red wolves in North Carolina highlighted the variable expression of in breeding depression across traits and the need to measure a number of different traits when evaluating inbreeding depressed in a wild population. Expand
Inbreeding load and inbreeding depression estimated from lifetime reproductive success in a small, dispersal-limited population
TLDR
Field and molecular data from a 17-year study of banner-tailed kangaroo rats are used to quantify the relationship between inbreeding, mate kinship, and lifetime reproductive success and illustrate that inbreeding can have a negative effect on lifetime reproductivesuccess. Expand
Effects of inbreeding and parental incubation on captive breeding success in Hawaiian crows
TLDR
It is shown that the negative effects of inbreeding on reproductive success should be accounted for even in benign captive environments where survival is maximized and suggests that parental incubation should be favored over artificial incubation in avian captive breeding programs. Expand
Inbreeding depression in a critically endangered carnivore
TLDR
The documentation of inbreeding depression in fundamental fitness traits suggests that inbreeding depressed individuals can limit population recovery, and introducing new genetic material to promote a genetic rescue effect may thus be necessary for population long‐term persistence. Expand
Inbreeding depression by environment interactions in a free-living mammal population
TLDR
This work investigates evidence for inbreeding depression by environment interactions in nine traits in the individually monitored Soay sheep population of St Kilda, using genomic inbreeding coefficients based on 37 037 single-nucleotide polymorphism loci, and population density as an axis of environmental variation. Expand
A high‐quality pedigree and genetic markers both reveal inbreeding depression for quality but not survival in a cooperative mammal
TLDR
This study uncovers variation in the extent to which different traits show inbreeding depression, and reveals trait‐specific differences in the ability of pedigrees and molecular markers to explain fitness variation and suggests that for certain traits, genetic markers may capture variation in realized IBDg above and beyond the pedigree expectation. Expand
Inbreeding and inbreeding avoidance in wild giant pandas
TLDR
The level of inbreeding in giant pandas is greater than expected for a solitary mammal and thus warrants concern for potential inbreeding depression, particularly in small populations isolated by continuing habitat fragmentation, which will reduce female dispersal and increase the risk of in breeding. Expand
Low incidence of inbreeding in a long-lived primate population isolated for 75 years
TLDR
It is shown that incidences of inbreeding in a long-lived primate population are rare, even after genetic isolation for 75 years, and simulations suggest that kin in this population generally avoid breeding with each other. Expand
The causes and consequences of inbreeding avoidance and tolerance in cooperatively breeding vertebrates
TLDR
In some cooperative breeders, in some species where inbreeding occurs relatively frequently, a high degree of inbreeding avoidance can be detrimental to population viability, and hence is of particular concern to conservationists. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 91 REFERENCES
The Environmental Dependence of Inbreeding Depression in a Wild Bird Population
TLDR
It is suggested that inbreeding-by-environment interactions may be substantial in wild populations, when measured across relevant environmental contrasts, although their detection for single traits may require very large samples, or high rates of inbreeding. Expand
ENVIRONMENTAL CONDITIONS AFFECT THE MAGNITUDE OF INBREEDING DEPRESSION IN SURVIVAL OF DARWIN'S FINCHES
TLDR
Quantifying inbreeding depression in survival and reproduction in populations of cactus finches and medium ground finches living on Isla Daphne Major in the Galapagos Archipelago suggests that substantial inbreeding Depression can exist in insular populations of birds, and that the magnitude of the inbreeding depressed is a function of environmental conditions. Expand
Inbreeding depression in red deer calves
TLDR
These results represent a rare demonstration of inbreeding depression using pedigree-based estimates in a wild mammal population and highlight the potential strength of effects on key components of fitness. Expand
Severe inbreeding depression in collared flycatchers (Ficedula albicollis)
TLDR
The results illustrate how severe inbreeding depression and considerable genetic load may exist in natural populations, but detecting them may require extensive long–term datasets. Expand
Inbreeding effects in wild populations.
TLDR
This work reveals that levels of inbreeding depression vary across taxa, populations and environments, but are usually substantial enough to affect both individual and population performance. Expand
Microsatellites reveal heterosis in red deer
TLDR
It is concluded that in the deer population fitness measures expressed early in life do not show evidence of inbreeding depression, but they do showEvidence of heterosis, possibly as a result of population mixing. Expand
INBREEDING AND ITS FITNESS EFFECTS IN AN INSULAR POPULATION OF SONG SPARROWS (MELOSPIZA MELODIA)
  • L. Keller
  • Biology, Medicine
  • Evolution; international journal of organic evolution
  • 1998
TLDR
Examination of data from a long‐term demographic study of an insular population of song sparrows and evidence for inbreeding depression shows that costs of inbreeding in this population were substantial and slightly above those expected from laboratory studies. Expand
INBREEDING IN THE SEYCHELLES WARBLER: ENVIRONMENT‐DEPENDENT MATERNAL EFFECTS
TLDR
The results show that inbreeding can have complicated effects even within a genetic bottlenecked population where the “purging” of recessive alleles is expected to reduce the effects of inbreeding depression. Expand
Inbreeding, heterozygosity and fitness in a reintroduced population of endangered African wild dogs (Lycaon pictus)
TLDR
Findings within the sample population indicated that molecular metrics were not robust predictors in models of fitness based on breeding pack formation, dominance, reproductive success or lifespan of individuals, suggesting some deleterious effects of inbreeding. Expand
Selection against inbred song sparrows during a natural population bottleneck
TLDR
It is reported that song sparrows that survived a severe population bottleneck were a non-random subset of the pre-crash population with respect to inbreeding, and that natural selection favoured outbred individuals, suggesting that inbreeding depression was expressed in the face of an environmental challenge. Expand
...
1
2
3
4
5
...