Karyotypic data from Australian native freshwater fishes are scarce, having been described from only few species. Here we present karyotypic data from two Australian iconic native freshwater species, golden perch (Macquaria ambigua) and Murray cod (Maccullochella peelii). Both species have diploid chromosome 2n = 48. All chromosomes of Golden perch are telocentric while in Murray cod 20 are acrocentric and 28 are telocentric. Using standard and molecular cytogenetics techniques we have also identified male heterogametic (XX/XY) sex chromosomes system in both species. We also mapped repetitive sequences and NOR and discussed chromosome evolution within Percichthyidae fishes.
Karyotypic data from Australian native freshwater fishes are scarce, having been described from only few species. Here we present karyotypic data from two Australian iconic native freshwater species, golden perch (Macquaria ambigua) and Murray cod (Maccullochella peelii). Both species have diploid chromosome 2n = 48. All chromosomes of Golden perch are telocentric while in Murray cod 20 are acrocentric and 28 are telocentric. Using standard and molecular cytogenetics techniques we have also identified male heterogametic (XX/XY) sex chromosomes system in both species. We also mapped repetitive sequences and NOR and discussed chromosome evolution within Percichthyidae fishes.
GSA2018_APCC6 GSACC62018@canberra.edu.auTechnical Issues?
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