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Meiotic behavior and H3K4m distribution in B chromosomes of Characidium gomesi (Characiformes, Crenuchidae)
(2016-01-01)
Characidium gomesi Travasso, 1956 specimens from the Pardo River have up to four heterochromatic supernumerary chromosomes, derived from the sex chromosomes. To access the meiotic behavior and distribution of an active ...
Meiotic behavior and H3K4m distribution in B chromosomes of Characidium gomesi (Characiformes, Crenuchidae)
(Pensoft Publ, 2016-01-01)
Characidium gomesi Travasso, 1956 specimens from the Pardo River have up to four heterochromatic supernumerary chromosomes, derived from the sex chromosomes. To access the meiotic behavior and distribution of an active ...
Surface-spreading technique of meiotic cells and immunodetection of synaptonemal complex proteins in teleostean fishes
(Biomed Central Ltd, 2015-01-27)
Background: Different moderrn methodologies are presently available to analyze meiotic chromosomes. These methods permit investigation of the behavior of chromosomes in the normal complement and of sex and B chromosomes, ...
Meiotic self-pairing of the psalidodon (Characiformes, characidae) iso-b chromosome: A successful perpetuation mechanism
(2021-01-01)
B chromosomes are non-essential additional genomic elements present in several animal and plant species. In fishes, species of the genus Psalidodon (Characiformes, Characidae) harbor great karyotype diversity, and multiple ...
Dissociation of the X chromosome from the synaptonemal complex in the XY body of the rodent Galea musteloides
(Springer, 2013-09)
The XY body from spermatocy tes of the rodent Galea musteloides shows progressiv e changes of the sy naptonemal complex (SC) axes and the X-chromatin during pachy nema. There is a gross thickening of the X-axis and the ...
The XY Body of the Cat (Felis catus): Structural Differentiations and Protein Immunolocalization
(Karger, 2017-08)
The heteromorphic X and Y chromosomes behave in a special way in mammalian spermatocytes; they form the XY body and synapse only partially. The aim of this article was to study the origin and the role of the special ...