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Geoffroy's side-necked turtle [Phrynops geoffroanus (Schweigger, 1812), Testudines: Chelidae] as a model for evolutionary ecotoxicology: relationship between environmental contamination, conditions and genetic variability
(Funpec-editora, 2013-01-01)
The objective of this study was to evaluate the role of human activity factors, such as environmental contamination and habitat changes, as drivers for changing the physiological, biochemical, and genetic diversity of ...
Heterozygosity-Fitness Correlations in a Continental Island Population of Thorn-Tailed Rayadito
(Oxford University Press, 2020)
Heterozygosity-fitness correlations (HFCs) have been used to monitor the effects of inbreeding in threatened populations. HFCs can also be useful to investigate the potential effects of inbreeding in isolated relict ...
Caracterização genética de populações ex situ de Leontopithecus chrysomelas (Kuhl, 1820) (Primata, Callithricidae)
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Conservação da Fauna - PPGCFauCâmpus São Carlos, 2015-05-29)
Captive programs of breeding and management of threatened species act as a safeguard against a likely extinction of species in the nature. The model species in this study, Leontopithecus chrysomelas or golden headed lion ...
Estimation of breed composition, breed heterosis and epistatic loss for percent of live spermatozoa in admixed Swiss Fleckvieh bulls
(2017-06-01)
The objective of this study was to estimate non-additive genetic effects of heterosis and epistatic loss on percent of live spermatozoa in admixed Swiss Fleckvieh bulls, a composite of Simmental and Holstein Friesian cattle. ...
Habitat fragmentation negatively affects effective gene flow via pollen, and male and female fitness in the dioecious tree, Spondias purpurea (Anacardiaceae)
(2021-03-01)
Habitat fragmentation is recognized as one of main threats to global biodiversity. Habitat fragmentation negatively affects population size and mutualistic interactions that directly impact plant fitness and genetic ...
Gene copy number and differential gene expression in haploid and diploid males of the stingless bee, Melipona quadrifasciata
(SPRINGER BASEL AGBASEL, 2012)
Complementary sex determination in Hymenoptera implies that heterozygosity at the sex locus leads to the development of diploid females, whereas hemizygosity results in haploid males. Diploid males can arise through ...