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Table 1 Snake samples used for this study

From: Sex chromosome evolution in snakes inferred from divergence patterns of two gametologous genes and chromosome distribution of sex chromosome-linked repetitive sequences

Infraoder Superfamily Family Species Abbrev. 2n a No. of used animals
Scolecophidia   Typhlopidae Typhlops sp. TYP 30 (M: 16, m: 14)b 1 unknow sex
Indotyphlops braminus IBR 42 (M: 21, m: 21)c 1 female
Alethinophidia Henophidia Tropidophiidae Tropidophis haetianus haetianus THA un 1 male
Boidae Boa constrictor BCO 36 (M: 16, m: 20) 1 male, 1 female
Cylindrophiidae Cylindrophis ruffus CRU un 1 unknow sex
Xenopeltidae Xenopeltis unicolor XUN 36 (M: 16, m: 20)d 1 male
Pythonidae Python bivittatus PBI 36 (M: 16, m: 20) 1 male, 1 female
Python molurus PMO 36 (M: 16, m: 20) 1 male, 1 female
Caenophidia Acrochordidae Acrochordus arafurae AAR 36e 1 male, 1 female
Acrochordus granulatus AGR 36 (M: 16, m: 20)f 1 male
Viperidae Protobothrops flavoviridis PFL 36 (M: 16, m: 20) 2 males, 2 females
Gloydius blomhoffii GBL 36 (M: 16, m: 20) 1 male, 1 female
Bitis arietans arietans BAR 36 (M: 16, m: 20) 1 male, 1 female
Naja kaouthia NKA 38 (M: 16, m: 22)g 1 male, 1 female
Elapidae Elaphe quadrivirgata EQU 36 (M: 16, m: 20) 1 male, 2 females, embryos
Colubridae Lycodon semicarinatum LSE 34 (M: 16, m: 18)h 1 male, 1 female
Rhabdophis tigrinus tigrinus RTI 40 (M: 16, m: 24) 1 male, 1 female
  1. aThe numbers of macrochromosomes (M) and microchromosomes (m) are shown in parentheses. un, the karyotypes have not been identified yet.
  2. bThe karyotype was identified in our lab [Matsubara et al., unpublished data]
  3. cThe karyotypic information is derived from Ota et al. [66]
  4. dThe karyotypic information is derived from Singh et al. [30], and Cole and Dowling [67]
  5. eThe karyotypic information is derived from CHROMOREP [68]
  6. fThe karyotypic information is derived from Sharma and Nakhasi [52, 53]
  7. gThe karyotypic information is derived from Singh [8] and Ray-Chaudhuri et al. [69]
  8. hThe karyotypic information is derived from Toriba [70]