+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Chromosomal rearrangements in rock wallabies, Petrogale (Marsupialia: Macropodidae). VII. G-banding analysis of Petrogale brachyotis and P. concinna: species with dramatically altered karyotypes



Chromosomal rearrangements in rock wallabies, Petrogale (Marsupialia: Macropodidae). VII. G-banding analysis of Petrogale brachyotis and P. concinna: species with dramatically altered karyotypes



Cytogenetics and Cell Genetics 61(1): 34-39



G-banded metaphase preparations of cultured fibroblasts were used to construct the karyotypes of Petrogale brachyotis (2n = 18) and P. concinna (2n = 16). The two karyotypes differ significantly from the plesiomorphic karyotype of the genus and from those of all other Petrogale species examined. Petrogale brachyotis and P. concinna are characterised by three synapomorphies: a 1-10 centric fusion, a 3a-6 centric fusion, and a submetacentric chromosome 2 (2s). Both species also possess autapomorphies. Petrogale brachyotis is characterised by submetacentric chromosomes 5 (5s) and 4 (4sm), whereas P. concinna is characterised by a 5-9 centric fusion and a submetacentric chromosome 8 (8m). The 2s, 5s, 4sm, and 8m chromosomes all appear to be derived from their plesiomorphic homologs by centromeric transpositions. Although the rate of chromosome evolution varies considerably in Petrogale, the genus clearly exhibits karyotypic orthoselection, with all the autosomal rearrangements identified being either centric fusions or centromeric transpositions. This study also illustrates the potential for convergent evolution in chromosomally diverse groups and demonstrates the importance of G-banding studies for accurate identification of chromosome rearrangements.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 039545904

Download citation: RISBibTeXText

PMID: 1505229


Related references

Chromosomal rearrangements in rock wallabies, Petrogale (Marsupialia: Macropodidae). 7. G-banding analysis of Petrogale brachyotis and P. concinna: species with dramatically altered karyotypes. Cytogenetics and Cell Genetics 611: 34-39, 1992

Chromosomal rearrangements in rock wallabies petrogale marsupialia macropodidae iii. g banding analysis of petrogale inornata and petrogale penicillata. Genome 33(6): 798-802, 1990

Chromosomal rearrangements in rock wallabies, Petrogale (Marsupialia: Macropodidae). II. G-banding analysis of Petrogale godmani. Genome 32(6): 935-940, 1989

Chromosomal rearrangements in rock wallabies petrogale marsupialia macropodidae iv. g banding analysis of the petrogale lateralis complex. Australian Journal of Zoology 39(6): 621-628, 1991

Chromosomal rearrangements in rock wallabies, Petrogale (Marsupialia: Macropodidae). Iii. G-banding analysis of Petrogale inornata and P . penicillata. Genome 33(6): 798-802, 1990

Chromosomal rearrangements in rock wallabies, Petrogale (Marsupialia: Macropodidae). 3. G-banding analysis of Petrogale inornata and P. penicillata. Genome 336: 798-802, 1990

Chromosomal rearrangements in rock wallabies, Petrogale (Marsupialia: Macropodidae). 4. G-banding analysis of the Petrogale lateralis complex. Australian Journal of Zoology 396: 621-627, 1991

Chromosomal rearrangements in rock wallabies petrogale marsupialia macropodidae i. the petrogale assimilis species complex g banding and synaptonemal complex analysis. Cytogenetics and Cell Genetics 48(4): 228-232, 1988

Chromosomal rearrangements in rock wallabies, Petrogale (Marsupialia: Macropodidae). VI. Determination of the plesiomorphic karyotype: G-banding comparison of Thylogale with Petrogale persephone, P. xanthopus, and P. l. lateralis. Cytogenetics and Cell Genetics 61(1): 29-33, 1992

Chromosomal rearrangements in rock wallabies, Petrogale (Marsupialia: Macropodidae). 2. G-banding analysis of P. godmani. Genome 326: 935-940, 1989

Chromosomal rearrangements in rock wallabies, Petrogale (Marsupialia: Macropodidae). IX. Further G-banding studies of the Petrogale lateralis complex: P. lateralis pearsoni, the west Kimberley race, and a population heterozygous for a centric fusion. Genome 40(1): 84-90, 1997

Chromosomal rearrangements in rock wallabies, Petrogale (Marsupialia, Macropodidae). Cytogenetic and Genome Research 48(4): 228-232, 1988

Chromosomal rearrangements in rock wallabies, Petrogale (Marsupialia: Macropodidae). Cytogenetic and Genome Research 61(1): 34-39, 1992

Taxonomy of rock wallabies, Petrogale (Marsupialia: Macropodidae): I. A revision of the eastern Petrogale with the description of three new species. Australian Journal of Zoology 40(6): 605-625, 1992

Chromosomal rearrangements in rock wallabies petrogale marsupialia macropodidae v. chromosomal phylogeny of the lateralis penicillata group. Australian Journal of Zoology 39(6): 629-642, 1991