Results 71 to 80 of about 33,384 (228)

Quantitative Genetic Effects of Bottlenecks: Experimental Evidence from a Wild Plant Species, Nigella degenii [PDF]

, 2010
Understanding the genetic consequences of changes in population size is fundamental in a variety of contexts, such as adaptation and conservation biology.
Andersson, Anna Palmé, Arnold, Avery, Barton, Bittkau, Briggs, Bryant, Carson, Cheverud, Cohan, Comes, Ellmer, Falconer, Fernández, Flury, Friar, Goodnight, Hewitt, Houle, Jones, Jorgensen, Lande, Leberg, Lee, Lynch, Lynch, López-Fanjul, López-Fanjul, Maarten Ellmer, Nei, Newman, Phillips, Phillips, Phillips, Phillips, Robertson, Saccheri, Saccheri, Stefan Andersson, Strid, Strid, Swindell, Tove H. Jorgensen, van Heerwaarden, Wade, Wang, Whitlock, Whitlock, Whitlock, Widén, Willi, Willis, Wright, Wright, Zeng   +55 more
core   +1 more source

Forty years of captive breeding in Przewalski's horse: pedigree‐based insights into population growth, sex ratio, and inbreeding

Wildlife Biology, EarlyView.
Long‐term captive breeding programs play a critical role in the conservation and reintroduction of endangered species, yet they face persistent challenges related to demographic structure and genetic management. The Przewalski's horse Equus przewalskii, once extinct in the wild, represents a global model for conservation breeding supported by pedigree ...
Qing L. Cao, Yong‐Jun Zhang, Yan‐Bao Zhang, Yan Luo, Lin Chen, Zhen‐Shan Wang, Jaroslav Šimek, He‐Fan Zhang, Entemahan Azhanhan, Mei Ye, Jian‐Ming Yang, Daniel I. Rubenstein   +11 more
wiley   +1 more source

Male Assistance in Parental Care Does Not Buffer Against Detrimental Effects of Maternal Inbreeding on Offspring

Frontiers in Ecology and Evolution, 2018
The severity of inbreeding depression often varies across environments and recent work suggests that social interactions can aggravate or reduce inbreeding depression.
Tom Ratz, Elise Castel, Per T. Smiseth
doaj   +1 more source

Impact of Inbreeding and Ancestral Inbreeding on Longevity Traits in German Brown Cows

Animals, 2023
A recent study on the population structure of the German Brown population found increasing levels of classical and ancestral inbreeding coefficients.
Anna Wirth, Jürgen Duda, Ottmar Distl
doaj   +1 more source

Inbreeding depression in Zebu cattle traits [PDF]

Journal of Animal Breeding and Genetics, 2016
SummaryThe productivity of herds may be negatively affected by inbreeding depression, and it is important to know how intense is this effect on the livestock performance. We performed a comprehensive analysis involving five Zebu breeds reared in Brazil to estimate inbreeding depression in productive and reproductive traits.
Pereira, R. J., Santana, M. L., Ayres, D. R., Bignardi, A. B., Menezes, G. R. O., Silva, L. O. C., Machado, C. H. C., Josahkian, L. A., Albuquerque, L. G.   +8 more
openaire   +3 more sources

Early acting inbreeding depression can evolve as an inbreeding avoidance mechanism

Proceedings of the Royal Society B: Biological Sciences, 2023
Despite the potential for mechanical, developmental and/or chemical mechanisms to prevent self-fertilization, incidental self-fertilization is inevitable in many predominantly outcrossing species. In such cases, inbreeding can compromise individual fitness. Unquestionably, much of this inbreeding depression is maladaptive.
Yaniv Brandvain, Lia Thomson, Tanja Pyhäjärvi   +2 more
openaire   +3 more sources

Museomics Deciphers the Phylogeographic Differentiation and Conservation Status of a Montane Pheasant

Integrative Zoology, EarlyView.
Museum specimens provide a rich source of historical DNA, enabling insights into phylogenetic relationships and demographic history of the endangered Koklass Pheasant. Our findings uncovered a previously unrecognized population in Guizhou province and highlighted elevated extinction risk in populations from Anhui province and Southern China, informing ...
Zhiyong Jiang, Yalin Cheng, Shuai Zhang, Wenqing Zang, Peng He, Dezhi Zhang, Jinjuan Mei, Peng Cui, Yanhua Qu, Hailong Wu   +9 more
wiley   +1 more source

Release from natural enemies mitigates inbreeding depression in native and invasive Silene latifolia populations

Ecology and Evolution, 2019
Inbreeding and enemy infestation are common in plants and can synergistically reduce their performance. This inbreeding ×environment (I × E) interaction may be of particular importance for the success of plant invasions if introduced populations ...
Karin Schrieber, Sabrina Wolf, Catherina Wypior, Diana Höhlig, Stephen R. Keller, Isabell Hensen, Susanne Lachmuth   +6 more
doaj   +1 more source

Inbreeding depression in a parasitoid wasp with single-locus complementary sex determination. [PDF]

PLoS ONE, 2014
Inbreeding and inbreeding depression are key processes in small or isolated populations and are therefore central concerns for the management of threatened or (re)introduced organisms.
Chloé Vayssade, Céline de Fazio, Bastien Quaglietti, Alexandra Auguste, Nicolas Ris, Xavier Fauvergue   +5 more
doaj   +1 more source

THE COST OF FLUCTUATING INBREEDING DEPRESSION [PDF]

Evolution, 2002
We present a phenotypic model for the evolution of self-fertilization in an infinite population of annual hermaphrodites for the case in which fitness and inbreeding depression vary among generations (e.g., due to fluctuations in the environment from year to year).
Pierre-Olivier, Cheptou, Daniel J, Schoen   +1 more
openaire   +2 more sources