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Comparative cytogenetic analysis in Erythrolamprus snakes (Serpentes: Dipsadidae) from Argentina Anais da ABC (AABC)
FALCIONE,CAMILA; HERNANDO,ALEJANDRA; BRESSA,MARÍA JOSÉ.
ABSTRACT We described the karyotypes of five snake taxa from Argentina: Erythrolamprus almadensis, E. ceii, E. poecilogyrus caesius, E. p. schotti and E. p. sublineatus, and also intergrading individuals between the last two subspecies by conventional staining, chromosome bandings and fluorescent in situ hybridization (FISH) with 28S ribosomal DNA probes. Erythrolamprus ceii and E. almadensis share a diploid chromosome number of 2n= 28, whereas in E. poecilogyrus intraspecific variations were observed: E. p. caesius has 2n= 28, E. p. schotti and E. p. sublineatus as well as in the intergrading individuals have 2n= 32. In E. almadensis and E. p. caesius, the 2nd and 6th chromosome pairs respectively are heteromorphic by size, morphology and C-banding...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ag-NOR; C-banding; Xenodontini; Fluorescent banding; RDNA-FISH; Sex chromosomes.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000401417
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Biologia reprodutiva da cobra-coral Erythrolamprus aesculapii Linnaeus (Colubridae), no Sudeste do Brasil Zoologia
Marques,Otávio A.V..
Dissection of 286 specimens of the "false" coral snake Erythrolamprus aesculapii Linnaeus, 1766, combined with data on captive individuais, provided information on the reproductive biology of this colubrid snake. Adult females (x snout-vent length = 74.5cm) attain larger body size than males (x SVL = 62.6). Clutch size ranged from one to eight eggs and was correlated with maternal body size. Neonates measured 20.2-22.5cm SVL and weighed 5.1-5.8g. Males attain sexual maturity earlier than females. Reproduction seems to be aseasonal, with vitellogenesis occurring throughout the year. Apparently the growth rate of folheies decreases in the dry season, possibly due to lower tempeiatures during this period. Multiple clutches were recorded in captive snakes....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Xenodontini; Erythrolamprus aesculapii; Aseasonal reproduction; Multiple clutches.
Ano: 1996 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300022
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