Studies on the Herpetofauna of the Canary Islands. II. The Karyotype of the Lizard, Chalcides sexlineatus

Cano, J.; Pretel, A.; López-Jurado, Luis Felipe

doi:10.2307/1564270

Cited by 5 publications

(2 citation statements)

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“…No sex chromosome heteromorphism was observed. It is a consistent characteristic from previous reports of the cytogenetics of lizards in family Scincidae (Makino and Momma 1949, Bhatnagar 1959, Dallai and Talluri 1969, Deweese and Wright 1970, Becak et al 1972, King 1973a, b, Wright 1973, Hardy 1979, De Smet 1981, Kupriyanova 1973, 1974, 1984, 1986, Branch 1980, Adegoke 1985, Cano et al 1985, Capriglione 1987, Colus and Ferrari 1988, Guo and Dong 1988 Odierna 1990, 1992, Adegoke and Ejere 1991, Donnellan 1991a, Eremchenko et al 1992, Caputo et al 1994, Ota and Lue 1994, Ota et al 1991, 1996, 1997, Norris 2003.…”

Section: Resultssupporting

confidence: 89%

Cytogenetic of Skink (Reptilia, Scincidae) from Thailand: II: Chromosome Analyses of Stripe Tree Skink (<i>Lipinia vittigera</i>)

et al. 2017

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Chromosomal analyses of the stripe tree skink (Lipinia vittigera Boulenger, 1894) from mitotic and meiotic cell divisions were studied. Bone marrow and testis samples were taken from five male and five female skinks. Skink chromosome preparations were conducted by squash technique from bone marrow and testis. The chromosomes were stained by conventional staining and Ag-NOR banding techniques. The results showed that the diploid chromosome number of L. vittigera was 2n=28, and the fundamental number (NF) was 44 in both males and females. The types of chromosomes were present as 8 large metacentric, 2 medium metacentric, 6 small metacentric macrochromosomes, and 12 microchromosomes. There was no observation of strange size chromosomes related to sex. Nucleolar organizer regions (NORs) appear to the telomere on the long arm of the largest metacentric chromosome pair 1 and medium metacentric chromosome pair 5. We found that during metaphase I on meiosis, the homologous chromosomes showed synapsis, which can be defined as the 14 bivalents and 14 haploid chromosomes at metaphase II as diploid species. The karyotype formula of L. vittigera is as follows: m m m 8 2 6 2 (diploid) 28=L +M +S +12 microchromosomes n

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Section: Resultssupporting

confidence: 89%

Cytogenetic of Skink (Reptilia, Scincidae) from Thailand: II: Chromosome Analyses of Stripe Tree Skink (<i>Lipinia vittigera</i>)

et al. 2017

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“…The karyotypes of fewer than 50 of the 1,200 or so species are recorded (Makino and Asana 1950, Makino 1951, Gorman 1973, King 1973a, 1973b, Kuprianova 1973, Wright 1973, Krishna and Aswathanarayana 1979, Hardy 1979, De Smet 1981, Bhatnager and Yoniss 1977, Cano et al 1985, Colus and Ferrari 1988, Ota et al 1988, 1995, 1996, 2001, Yang et al 1989, Donnellan 1991, Eremchenko et al 1992, Hernando and Alvarez 2005, Ezaz et al 2009) Chromosome data are too sparse to provide data to meaningfully test the various systematic schemes proposed for the family (Donnellan 1991).…”

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confidence: 99%

Cytogenetics of the Skinks (Reptilia, Scincidae) from Thailand; I: Chromosome Analyses of the Common Sun Skink (Eutropis multifasciata)

et al. 2014

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Summary Chromosomal analyses of the common sun skink (Eutropis multifasciata) from mitotic and meiotic cell divisions were studied. Blood samples were taken from five male and five female skinks. Skink chromosome preparations were conducted by the squash technique from the bone marrow and testis. The chromosomes were stained by conventional staining and Ag-NOR banding techniques. The results showed that the diploid chromosome number of E. multifasciata was 2n=32, the fundamental number (NF) was 48 in both males and females. The types of chromosomes were present as 6 large metacentric, 2 large submetacentric, 6 small metacentric, 2 small submetacentric, 2 small telocentric macrochromosomes and 14 microchromosomes. There was no irregularly sized chromosome related to sex. We also observed distinctive nucleolar organizer regions (NORs) at the region adjacent to the short arms near the telomere of a pair of the largest metacentric chromosomes. We found that during diakinesis (prophase I) the homologous chromosomes showed synapsis, which can be defined as the 16 bivalents and 16 haploid chromosomes at metaphase II as diploid species. The common sun skink (Eutropis multifasciata) belongs to the class Reptilia, order Squamata, suborder Laccertilia, infarorder Scincomorpha, family Scincidae, and subfamily Lygosominae (Fig. 1). The family Scincidae is the largest family of the extant lizards and includes over 1,200 species ranging from temperate to tropical regions on all continents inhabited by reptiles (Matsui 1992, Zug 1993, Pough et al. 2004. Greer (1970) on the basis of external and osteological characters divided this family in to four subfamilies: Acontinae, Feylininae, Scincinae, and Lygosominae.The subfamily Lygosominae contains over 600 species (Greer 1970, Matsui 1992, Zug 1993. Within this subfamily three evolutionary lineages (Eugongylus, Mabuya, and Shenomorphus groups) are recognized on morphological criteria, karyology, and immunogenetics (Baverstock and Donnellan 1990, Donnellan 1991, Ota and Lue 1994, Ota et al. 1991, 1995, 1996.There is a remarkable paucity of karyotypic information available for the family Scincidae. The karyotypes of fewer than 50 of the 1,200 or so species are recorded (Makino and Asana 1950,

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Chromosomes of Australian lygosomine skinks (Lacertilia: Scincidae)

Donnellan¹

1991

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Studies on the Herpetofauna of the Canary Islands. II. The Karyotype of the Lizard, Chalcides sexlineatus

Cited by 5 publications

References 1 publication

Cytogenetic of Skink (Reptilia, Scincidae) from Thailand: II: Chromosome Analyses of Stripe Tree Skink (<i>Lipinia vittigera</i>)

Cytogenetic of Skink (Reptilia, Scincidae) from Thailand: II: Chromosome Analyses of Stripe Tree Skink (<i>Lipinia vittigera</i>)

Cytogenetics of the Skinks (Reptilia, Scincidae) from Thailand; I: Chromosome Analyses of the Common Sun Skink (Eutropis multifasciata)

Chromosomes of Australian lygosomine skinks (Lacertilia: Scincidae)

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