Comparative cytogenetic analysis of sex chromosomes in several Canidae species using zoo-FISH.
作者： Monika Bugno-Poniewierska , Agnieszka Sojecka , Klaudia Pawlina , Andrzej Jakubczak , Grżyna Jeżewska-Witkowska
关键词: Biology 、 Karyotype 、 Synteny 、 Genome 、 Comparative genomics 、 X chromosome 、 Y chromosome 、 Genetics 、 Fluorescence in situ hybridization 、 Arctic fox
摘要: Sex chromosome differentiation began early during mammalian evolution. The karyotype of almost all placental mammals living today includes a pair heterosomes: XX in females and XY males. genomes different species may contain homologous synteny blocks indicating that they share common ancestry. One the tools used for their identification is Zoo-FISH technique. aim study was to determine whether sex chromosomes some members Canidae family (the domestic dog, red fox, arctic an interspecific hybrid: fox x Chinese raccoon dog) are evolutionarily conservative. Comparative cytogenetic analysis by using painting probes specific dog heterosomes performed. results show presence covering entire structures X Y chromosomes. This suggests conserved family. data obtained through append information other comparative genomics methods, giving more complete depiction genome
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