PMID- 10099873
OWN - NLM
STAT- MEDLINE
DCOM- 19990706
LR  - 20191103
IS  - 0967-3849 (Print)
IS  - 0967-3849 (Linking)
VI  - 6
IP  - 8
DP  - 1998 Dec
TI  - Mapping the distribution of the telomeric sequence (T2AG3)n in the Macropodoidea 
      (Marsupialia), by fluorescence in situ hybridization. I. The swamp wallaby, 
      Wallabia bicolor.
PG  - 603-10
AB  - Thylogale spp. (pademelons) retain the plesiomorphic (ancestral) 2n = 22 
      karyotype for the marsupial family Macropodidae (kangaroos and wallabies). The 
      swamp wallaby, Wallabia bicolor, has the most derived macropodid karyotype with 
      the lowest chromosome number (2n = 10 female, 11 male), and a multiple sex 
      chromosome system (XX female, XY1Y2 male). All but one of the W. bicolor 
      chromosomes are fusion chromosomes. Two of these chromosomes, the X chromosome 
      and chromosome 1, are composed of three plesiomorphic Thylogale-like chromosomes. 
      The distribution of the vertebrate telomeric sequence (T2AG3)n was examined by 
      fluorescence in situ hybridization (FISH) in both species and a 'map' of 
      non-telomeric (T2AG3)n sites on W. bicolor chromosomes relative to Thylogale 
      chromosomes was constructed. (T2AG3)n signals were observed at six fusion sites 
      in the four fusions chromosomes examined, indicating that the (T2AG3)n sequence 
      is consistently retained during fusions. The distribution of the interstitial 
      signals on the long arm of chromosome 1 of W. bicolor and the X chromosome 
      suggests how a combination of inversions, fusions and centromeric transpositions 
      have resulted in interstitial telomeric sequence.
FAU - Metcalfe, C J
AU  - Metcalfe CJ
AD  - School of Biological Sciences, Macquarie University, New South Wales, Australia. 
      cmetcalf@rna.bio.mq.edu.au
FAU - Eldridge, M D
AU  - Eldridge MD
FAU - Toder, R
AU  - Toder R
FAU - Johnston, P G
AU  - Johnston PG
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - Netherlands
TA  - Chromosome Res
JT  - Chromosome research : an international journal on the molecular, supramolecular 
      and evolutionary aspects of chromosome biology
JID - 9313452
SB  - IM
MH  - Animals
MH  - Chromosome Banding
MH  - *Chromosome Mapping
MH  - Evolution, Molecular
MH  - Female
MH  - Humans
MH  - In Situ Hybridization, Fluorescence/*methods
MH  - Macropodidae/*genetics
MH  - Male
MH  - Metaphase
MH  - *Telomere
MH  - X Chromosome
EDAT- 1999/04/01 00:00
MHDA- 1999/04/01 00:01
CRDT- 1999/04/01 00:00
PHST- 1999/04/01 00:00 [pubmed]
PHST- 1999/04/01 00:01 [medline]
PHST- 1999/04/01 00:00 [entrez]
AID - 10.1023/a:1009249325574 [doi]
PST - ppublish
SO  - Chromosome Res. 1998 Dec;6(8):603-10. doi: 10.1023/a:1009249325574.