Karyotypic evolution in squamate reptiles: comparative gene mapping revealed highly conserved linkage homology between the butterfly lizard (Leiolepis reevesii rubritaeniata, Agamidae, Lacertilia) and the Japanese four-striped rat snake (Elaphe quadrivirgata, Colubridae, Serpentes).

Chromosome Research : an International Journal on the Molecular, Supramolecular and Evolutionary Aspects of Chromosome Biology
K SrikulnathY Matsuda

Abstract

The butterfly lizard (Leiolepis reevesii rubritaeniata) has the diploid chromosome number of 2n = 36, comprising two distinctive components, macrochromosomes and microchromosomes. To clarify the conserved linkage homology between lizard and snake chromosomes and to delineate the process of karyotypic evolution in Squamata, we constructed a cytogenetic map of L. reevesii rubritaeniata with 54 functional genes and compared it with that of the Japanese four-striped rat snake (E. quadrivirgata, 2n = 36). Six pairs of the lizard macrochromosomes were homologous to eight pairs of the snake macrochromosomes. The lizard chromosomes 1, 2, 4, and 6 corresponded to the snake chromosomes 1, 2, 3, and Z, respectively. LRE3p and LRE3q showed the homology with EQU5 and EQU4, respectively, and LRE5p and LRE5q corresponded to EQU7 and EQU6, respectively. These results suggest that the genetic linkages have been highly conserved between the two species and that their karyotypic difference might be caused by the telomere-to-telomere fusion events followed by inactivation of one of two centromeres on the derived dicentric chromosomes in the lineage of L. reevesii rubritaeniata or the centric fission events of the bi-armed macrochromosomes and subs...Continue Reading

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Citations

Aug 25, 2010·Chromosome Research : an International Journal on the Molecular, Supramolecular and Evolutionary Aspects of Chromosome Biology·Denis O'MeallyTariq Ezaz
Oct 12, 2011·Chromosome Research : an International Journal on the Molecular, Supramolecular and Evolutionary Aspects of Chromosome Biology·Vladimir A TrifonovMalcolm A Ferguson-Smith
Jan 6, 2012·Chromosome Research : an International Journal on the Molecular, Supramolecular and Evolutionary Aspects of Chromosome Biology·Denis O'MeallyJennifer A Marshall Graves
May 25, 2013·Chromosome Research : an International Journal on the Molecular, Supramolecular and Evolutionary Aspects of Chromosome Biology·M J YoungT Ezaz
Dec 18, 2013·Chromosome Research : an International Journal on the Molecular, Supramolecular and Evolutionary Aspects of Chromosome Biology·Kornsorn SrikulnathYoichi Matsuda
Sep 11, 2012·BMC Genomics·Juliana MazzuchelliCesar Martins
Nov 26, 2015·Scientific Reports·Suzanne V SaenkoMichel C Milinkovitch
Feb 11, 2015·Chromosome Research : an International Journal on the Molecular, Supramolecular and Evolutionary Aspects of Chromosome Biology·Martina Johnson PokornáLukáš Kratochvíl
Sep 17, 2016·The Journal of Heredity·Tariq EzazJennifer A Marshall Graves
Aug 8, 2015·PloS One·Michail RovatsosMartina Johnson Pokorná
Aug 31, 2014·G3 : Genes - Genomes - Genetics·Michail RovatsosLukáš Kratochvíl
Feb 13, 2016·Genomics & Informatics·Kornsorn SrikulnathNarongrit Muangmai
May 13, 2018·Genes·Shayer Mahmood Ibney AlamTariq Ezaz
May 3, 2020·Chromosome Research : an International Journal on the Molecular, Supramolecular and Evolutionary Aspects of Chromosome Biology·Worapong SingchatKornsorn Srikulnath
May 31, 2018·PloS One·Manoella Gemaque CavalcanteRenata Coelho Rodrigues Noronha
Nov 5, 2020·Cells·Worapong SingchatKornsorn Srikulnath

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