NDLI: CYTOGENETIC VARIATIONS IN Clarias species ( CLARIIDAE : SURULIFROMIS ) OF THE ANAMBRA RIVER USING LEUCOCYTES CULTURE TECHNIQUES

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CYTOGENETIC VARIATIONS IN Clarias species ( CLARIIDAE : SURULIFROMIS ) OF THE ANAMBRA RIVER USING LEUCOCYTES CULTURE TECHNIQUES

Content Provider	Semantic Scholar
Author	Effiong, Joseph
Copyright Year	2005
Abstract	Cytogenetic variations among four Clarias species from Anambra river, Nigeria were studied using leucocytes culture techniques. Heterogeneity in chromosome number (2n = 48 in Clarias ebriensis and C. albopunctatus to 2n = 56 in C. anguillaris and C. gariepinus) and Karyotype morphologies occurred among the c ariids The chromosomes were characterized by a high proportion of meta-submetacentric chromosomes and low proportion of acrocentric chromosomes The females karyotype morpholog es exhibited a heteromorphic pair suspected to be the sex chromosome complex. The following formulae were established for the male clariids; C ebriensis 6m + 22sm + 20a FN =76; C albopunctatus 4m ± 22sm + 22a FN = 74; C. gariepinus 8m + 24a FN = 88; and C. anguillaris 8m + 26m + 22a FN = 90. The emale karyotype morphologies were C ebriens s 6m + 23sm + 19a FN = 77, C. albopunctatus 4m ± 23sm + 21a FN = 75, C. gariepinus 8m + 25sm + 23a FN = 89 and C. anguillaris 8m + 27sm + 21a FN = 91. A generic chromosomal number of 2n = 54 l .
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://www.zoo-unn.org/ARI%20vols/vol2/vol2-1/Eyo.pdf
Language	English
Access Restriction	Open
Subject Keyword	Clariidae Culture Techniques Eighty Nine Karyotype Leukocytes Mandibular left canine abutment Mandibular left central incisor abutment Mandibular left first premolar abutment Mandibular left lateral incisor abutment Mandibular left second premolar abutment Sex Chromosomes
Content Type	Text
Resource Type	Article

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