Idioma:

Karyotype evolution in monitor lizards: cross-species chromosome mapping of cDNA reveals highly conserved synteny and gene order in the Toxicofera clade

Srikulnath, Kornsorn ; Uno, Yoshinobu ; Nishida, Chizuko ; Matsuda, Yoichi

Chromosome research, 2013-12, Vol.21 (8), p.805-819 [Periódico revisado por pares]

Dordrecht: Springer-Verlag

Texto completo disponível

Citações Citado por

Enviar para

Título:
Karyotype evolution in monitor lizards: cross-species chromosome mapping of cDNA reveals highly conserved synteny and gene order in the Toxicofera clade
Autor: Srikulnath, Kornsorn ; Uno, Yoshinobu ; Nishida, Chizuko ; Matsuda, Yoichi
Assuntos: Animal Genetics and Genomics ; Animals ; Biomedical and Life Sciences ; Cell Biology ; Centromere - genetics ; Centromere - metabolism ; Chickens ; Chromosome Mapping ; chromosome number ; Chromosomes ; Chromosomes - genetics ; Cloning, Molecular ; complementary DNA ; Conservation of Natural Resources ; Cytogenetics ; DNA, Complementary - genetics ; Elaphe ; Elaphe obsoleta ; evolution ; Evolution, Molecular ; Gene Order ; genes ; Genomics ; Human Genetics ; In Situ Hybridization, Fluorescence ; Karyotype ; Karyotyping ; Lacertilia ; Life Sciences ; lizards ; Lizards - classification ; Lizards - genetics ; Male ; pericentric inversion ; Plant Genetics and Genomics ; Platynota ; reciprocal translocation ; Reptiles & amphibians ; RNA, Ribosomal, 18S - genetics ; RNA, Ribosomal, 18S - isolation & purification ; RNA, Ribosomal, 28S - genetics ; RNA, Ribosomal, 28S - isolation & purification ; Snakes - classification ; Snakes - genetics ; Synteny - genetics ; Varanus ; Varanus salvator
É parte de: Chromosome research, 2013-12, Vol.21 (8), p.805-819
Notas: http://dx.doi.org/10.1007/s10577-013-9398-0
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: The water monitor lizard (Varanus salvator macromaculatus (VSA), Platynota) has a chromosome number of 2n = 40: its karyotype consists of 16 macrochromosomes and 24 microchromosomes. To delineate the process of karyotype evolution in V. salvator macromaculatus, we constructed a cytogenetic map with 86 functional genes and compared it with those of the butterfly lizard (Leiolepis reevesii rubritaeniata (LRE); 2n = 36) and Japanese four-striped rat snake (Elaphe quadrivirgata (EQU); 2n = 36), members of the Toxicofera clade. The syntenies and gene orders of macrochromosomes were highly conserved between these species except for several chromosomal rearrangements: eight pairs of VSA macrochromosomes and/or chromosome arms exhibited homology with six pairs of LRE macrochromosomes and eight pairs of EQU macrochromosomes. Furthermore, the genes mapped to microchromosomes of three species were all located on chicken microchromosomes or chromosome 4p. No reciprocal translocations were found in the species, and their karyotypic differences were caused by: low frequencies of interchromosomal rearrangements, such as tandem fusions, or centric fissions/fusions between macrochromosomes and between macro- and microchromosomes; and intrachromosomal rearrangements, such as paracentric inversions or centromere repositioning. The chromosomal rearrangements that occurred in macrochromosomes of the Varanus lineage were also identified through comparative cytogenetic mapping of V. salvator macromaculatus and V. exanthematicus. Morphologic differences in chromosomes 6–8 between the two species could have resulted from pericentric inversion or centromere repositioning.
Editor: Dordrecht: Springer-Verlag
Idioma: Inglês

Links

View this record in MEDLINE/PubMed

Voltar para lista de resultados

Realização: Logos de Redes Sociais:

Karyotype evolution in monitor lizards: cross-species chromosome mapping of cDNA reveals highly conserved synteny and gene order in the Toxicofera clade

Srikulnath, Kornsorn ; Uno, Yoshinobu ; Nishida, Chizuko ; Matsuda, Yoichi

Dordrecht: Springer-Verlag

Buscando em bases de dados remotas. Favor aguardar.