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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
19/03/1999 |
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Data da última atualização: |
19/03/1999 |
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Autoria: |
COHEN, M. M.; CLARK, H. F. |
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Afiliação: |
Division of Human Genetics and Laboratory of Virology, Department of Pediatries, State University of New York at Buffalo, School of Medicine and Childrens's Hospital Buffalo, N. Y. |
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Título: |
The somatic chromosomes of five Crocodilian species. |
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Ano de publicação: |
1967 |
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Fonte/Imprenta: |
Cytogenetics, v.6, n.3/4, p.193-203, 1967. |
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Idioma: |
Inglês |
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Conteúdo: |
The somatic karyotypes of five croicodilians species are described. These species include Caiman sclerops (spectated caiman or South American alligator, 2N = 42), Alligator mississippiensis (North American alligator, 2N = 32), Crocodylus porosus (salt-water crocodile, 2N = 34), Crocodylus niloticus (Nile crocodile, 2N = 32), and Tomistoma schlegeli (false gavial, 2N = 32). Metacentric submetracentric and telocen tric chromosomes were observed in all species tested. Satellites were observed on a submetacentric element of A. mississippiensis, and the apparently identical chromosome with an obvious secondary constriction was found in both C. porosus and C. niloticus. No microchromosomes were found. Possible pathways of chromosomal evolution to explain the observed karyotypic relationships are suggested. |
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Palavras-Chave: |
Crocodile; Reptile. |
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Thesagro: |
Crocodilo; Cromossoma; Réptil. |
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Thesaurus Nal: |
chromosomes. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01312naa a2200205 a 4500
001 1794511
005 1999-03-19
008 1967 bl --- 0-- u #d
100 1 $aCOHEN, M. M.
245 $aThe somatic chromosomes of five Crocodilian species.
260 $c1967
520 $aThe somatic karyotypes of five croicodilians species are described. These species include Caiman sclerops (spectated caiman or South American alligator, 2N = 42), Alligator mississippiensis (North American alligator, 2N = 32), Crocodylus porosus (salt-water crocodile, 2N = 34), Crocodylus niloticus (Nile crocodile, 2N = 32), and Tomistoma schlegeli (false gavial, 2N = 32). Metacentric submetracentric and telocen tric chromosomes were observed in all species tested. Satellites were observed on a submetacentric element of A. mississippiensis, and the apparently identical chromosome with an obvious secondary constriction was found in both C. porosus and C. niloticus. No microchromosomes were found. Possible pathways of chromosomal evolution to explain the observed karyotypic relationships are suggested.
650 $achromosomes
650 $aCrocodilo
650 $aCromossoma
650 $aRéptil
653 $aCrocodile
653 $aReptile
700 1 $aCLARK, H. F.
773 $tCytogenetics$gv.6, n.3/4, p.193-203, 1967.
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Registro original: |
Embrapa Pantanal (CPAP) |
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