GENETIC DIFFERENTIATION IN THE DROSOPHILA ATHABASCA COMPLEX
نویسندگان
چکیده
منابع مشابه
Chromosome Variation I N Drosophila Athabasca
HE structural detail exhibited by the salivary gland chromosomes of the T Dipterans has made possible extensive surveys of the chromosome variation in natural populations of Drosophila. Such studies (DOBZHANSKY and STURTEVANT 1938; DOBZHANSKY and SOCOLOV 1939; DOBZHANSKY 1944; MILLER 1939; CARSON and STALKER 1946) show that variability in the form of inverted sections of chromosomes is widespre...
متن کاملCarbon dioxide sensitivity in Drosophila affinis and Drosophila athabasca.
ENSITIVITY to carbon dioxide in Drosophila melanogaster, discovered in 1937 by L’HfiRITIER and TEISSIER, has been the object of considerable research by L’HBRITIER and his co-workers in France (L’H~~RITIER 1948, 1951, 1958). Since ‘no study had previously been made in species other than D. melanogaster, it was decided to investigate the occurrence of CO, sensitivity in several of the American D...
متن کاملSelection on X-linked genes during speciation in the Drosophila athabasca complex.
We present the results of a restriction site survey of variation at five loci in Drosophila athabasca, complimenting a previous study of the period locus. There is considerably greater differentiation between the three semispecies of D. athabasca at the period locus and two other X-linked genes (no-on-transient-A and E74A) than at three autosomal genes (Xdh, Adh and RC98). Using a modification ...
متن کاملPatterns of Genome-Wide Diversity and Population Structure in the Drosophila athabasca Species Complex
The Drosophila athabasca species complex contains three recently diverged, prezygotically isolated semispecies (Western-Northern, Eastern-A, and Eastern-B) that are distributed across North America and share zones of sympatry. Inferences based on a handful of loci suggest that this complex might be an ideal system for studying the genetics of incipient speciation and the evolution of prezygotic...
متن کاملMolecular evolution of the period gene in Drosophila athabasca.
We measured nucleotide variability within and between the three semispecies of the Drosophila athabasca complex, at the period (per) gene by using a polymerase chain reaction-based four-cutter restriction-enzyme analysis. The levels of polymorphism varied considerably between the three semispecies. Our results for per, combined with previous data for X-linked allozymes, suggest that the X chrom...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Evolution
سال: 1985
ISSN: 0014-3820
DOI: 10.1111/j.1558-5646.1985.tb05684.x