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Journal Publication
Title of Article Cytogenetic study of the Bent-toed Gecko (Reptilia, Gekkonidae) in Thailand; I: Chromosomal classical features and NORs characterization of Cyrtodactylus kunyai and C. interdigitalis 
Date of Acceptance 31 July 2018 
Journal
     Title of Journal caryologia 
     Standard ISI 
     Institute of Journal Taylor and Francis 
     ISBN/ISSN 00087114 
     Volume 84 
     Issue
     Month september
     Year of Publication 2019 
     Page  
     Abstract This study analysed the karyotype of Cyrtodactylus kunyai and C. interdigitalis from Loei Province in Northeastern Thailand. The metaphase and meiotic chromosome preparations were obtained by squash technique from bone marrow and testes, respectively. The chromosomes were stained by Giemsa staining and Ag-NOR banding techniques. The results showed diploid chromosomes (2n) of 40 for C. kunyai and 42 for C. interdigitalis. The autosome types of metacentric, submetacentric, acrocentric and telocentric chromosomes were 8-4-0-28 and 4-2-4-32, respectively. The Ag-NORs banding technique provides the pair of nucleolar organizer regions (NORs) of both two species at telomeric region of the long arm of the pair 12, metacentric type in C. kunyai and telocentric type in C. interdigitalis. There are no sex differences in karyotypes between males and females of both two species. We found that during metaphase I on meiosis of C. kunyai and C. interdigitalis, the homologous chromosomes showed synapsis of 20 and 21 bivalents, respectively. Moreover, the meiotic phase on prophase II exhibited 20 and 21 haploid chromosomes (n) as respective diploid species. Their karyotype formulas is as follows: C. kunyai (2n = 40): Lm2 + Lsm4 + Lt4 + Mt6 + Sm6 + St18, and C. interdigitalis (2n = 42): La4 + Lt14 +Mt2 + Sm4 + Ssm2 + St16. 
     Keyword Cyrtodactylus; Cyrtodactylus kunyai; Cyrtodactylus interdigitalis; Karyotype stasis 
Author
597020057-2 Mr. WEERA THONGNETR [Main Author]
Science Doctoral Degree

Reviewing Status มีผู้ประเมินอิสระ 
Status ได้รับการตอบรับให้ตีพิมพ์ 
Level of Publication นานาชาติ 
citation true 
Part of thesis true 
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