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Sperm morphometry and chromatin condensation in Nelore bulls of different ages and their effects on IVF
(2017-01-01)
The aim of this study was to evaluate the chromatin packing and sperm head morphometry of cryopreserved semen of Nelore bulls (Bos taurus indicus) of different ages. Furthermore, the influence of the degree of chromatin ...
Molecular clock as insight to estimate the evolutionary history and times of divergence for 10 nominal astyanax species (Characiformes, characidae): An evolutionary approach in species with 2n = 36, 46, 48, and 50 chromosomes
(2019-02-01)
Astyanax is a genus with a wide distribution ranging from the south United States to north of Patagonia (Argentina). The available cytogenetic data on Astyanax indicate a high karyotypic diversity, with diploid number of ...
Use of chromomycin A3 staining in bovine sperm cells for detection of protamine deficiency
(Baltimore, 2009)
Sperm chromatin integrity is essential for accurate transmission of male genetic information, and normal sperm chromatin structure is important for fertilization. Protamine is a nuclear protein that plays a key role in ...
Cytogenetic studies of four South American species of Paullinia L. (Sapindaceae)
(Oxford University Press, 2007)
Análise citogenética de peixes dos gêneros: Astyanax, Moenkhausia e Bryconops provenientes das regiões de Uberlândia-MG e Monte do Carmo-TOAnálise citogenética de peixes dos gêneros: Astyanax, Moenkhausia e Bryconops provenientes das regiões de Uberlândia-MG e Monte do Carmo-TO
(Universidade Federal de UberlândiaBRPrograma de Pós-graduação em Genética e BioquímicaCiências BiológicasUFU, 2016)
Cytogenetic analysis of the neotropical spider Nephilengys cruentata (Araneomorphae, tetragnathidae): standard staining, NORs, C-bands and base-specific fluorochromes
(Instituto Internacional de Ecologia, 2005-05-01)
O objetivo deste trabalho é caracterizar Nephilengys cruentata em relação ao número diplóide, à morfologia cromossômica, ao tipo de sistema cromossômico de determinação sexual, aos cromossomos portadores de Regiões ...
Cytogenetic analysis of the neotropical spider Nephilengys cruentata (Araneomorphae, tetragnathidae): standard staining, NORs, C-bands and base-specific fluorochromes
(Instituto Internacional de Ecologia, 2005-05-01)
O objetivo deste trabalho é caracterizar Nephilengys cruentata em relação ao número diplóide, à morfologia cromossômica, ao tipo de sistema cromossômico de determinação sexual, aos cromossomos portadores de Regiões ...
Cytogenetic analysis of the neotropical spider Nephilengys cruentata (Araneomorphae, tetragnathidae): standard staining, NORs, C-bands and base-specific fluorochromes
(Instituto Internacional de Ecologia, 2014)