
TY  - JOUR
A1  - M Watson, Jaclyn 
A1  - A MarshalI Graves, Jennifer 
T1  - Gene Mapping in Marsupials and Monotremes, V. Synteny between Hypoxanthine Phosphoribosyltransferase and Phosphoglycerate Kinase in the Platypus
JF  - Australian Journal of Biological Sciences
JO  - Aust. Jnl. Of Bio. Sci.
Y1  - 1988
VL  - 41
IS  - 2
SP  - 231
EP  - 238
KW  - 
UR  - https://doi.org/10.1071/BI9880231 
N2  - In order to extend comparative mapping studies to the monotreme mammals (subclass Prototheria), somaticcell hybrids were obtained between Chinese-hamster cells deficient in hypoxanthine phosphoribosyltransferase (HPRT) and platypus fibroblasts. The characteristics of these hybrids closely resemble those of metatherian x eutherian hybrids, in that they are recovered at low frequency and they rapidly segregate and fragment platypus chromosomes. Biochemical and cytological studies of the hybrids, their subclones and HPRT-deficient revertants indicate that phosphoglycerate kinase is syntenic with HPRT in the platypus (as it is in other mammals); however, the studies do not permit chromosomal assignment of the syntenic group. The implications of the chromosomal location of this ancient synteny group for the evolution of the mammalian X chromosome are discussed. 
ER  -

