CHROMOSOMAL POLYMORPHISM COMMON TO SEVERAL SPECIES OFJUNCO(AVES)
- 1 September 1973
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Genetics and Cytology
- Vol. 15 (3) , 461-471
- https://doi.org/10.1139/g73-057
Abstract
Karyotypes were obtained from primary kidney cultures of nearly 250 individuals belonging to six nominate species of the avian genus Junco. Chromosome 2 was found to be dimorphic in four of the six species and chromosome 5 was dimorphic in five of the six species. The dimorphism appears to be due to the presence of a pericentric inversion in each of these autosomes. It is hypothesized that chromosomes 2 and 5 are ancestral and gave rise to chromosomes 2smand 5mrespectively. The sample of the slate-colored junco, Junco hyemalis, the largest studied, conforms to the Hardy-Weinberg equilibrium and suggests that a random sample was drawn from a randomly mating population.Keywords
This publication has 8 references indexed in Scilit:
- Chromosomal Polymorphism in the White-Throated Sparrow, Zonotrichia albicollis (Gmelin)Science, 1966
- THE SALIVARY GLAND CHROMOSOMES OF THREE NORTH AMERICAN SPECIES OF TWINNIA (DIPTERA: SIMULIIDAE)Canadian Journal of Zoology, 1966
- Additional Hybrids of the Slate-Colored Junco and the White-Throated SparrowOrnithological Applications, 1965
- Generic Limits of ZonotrichiaOrnithological Applications, 1964
- The W-chromosome of the budgerigar, Melopsittacus undulatusChromosoma, 1963
- Hybrids among the Fringillid Genera Junco-Zonotrichia and MelospizaThe Auk, 1961
- Carbol Fuchsin as A Stain for Human ChromosomesStain Technology, 1961
- A Hybrid between the White-Throated Sparrow and the Slate-Colored Junco at Dalton, GeorgiaThe Auk, 1957