Genetic Studies on Drosophila*
نویسندگان
چکیده
منابع مشابه
Developmental and genetic studies on kynurenine hydroxylase from Drosophila melanogaster.
The level of kynurenine hydroxylase was measured throughout the development of wild type and the eye color mutants v, cn, st, ltd, cd, kar, w, ca, bri and p(P) of Drosophila melanogaster. In all cases except cn a bimodal distribution of enzyme activity during development was observed. Activity is initially detectable in second instar. A maximum is reached in early third instar. Activity decline...
متن کاملGenetic Studies on DROSOPHILA SIMULANS. I. Introduction. Hybrids with DROSOPHILA MELANOGASTER.
INTRODUCTION. .................................................................. 488 Description of Drosophila simulans. ................................................ 488 Distribution of Drosophila simulans ................................................ 491 Discovery of Drosophila simulans. ................................................. 491 Drosophila melanogaster 0 X D . simulans 61. ....
متن کاملGenetic studies of natural populations of Drosophila: Drosophila pseudoobscura, a large dominant population.
F O R several years members of this laboratory have studied the genetic structure of Drosophila populations. None of these populations has been a large dominant continental population. PROFESSOR TH. DOBZHANSKY and his colleagues have analyzed samplemf Drosophila willistoni, the major Neotropical Drosophila with the largest population of any Drosophila known, and Drosophila pseudoobscura, which ...
متن کاملStudies on the transposition rates of mobile genetic elements in a natural population of Drosophila melanogaster.
In an isolated population of Drosophila melanogaster on Ishigaki Island the chromosomal distribution of several retrotransposons, including copia, 412, 297, 17.6, I, and jockey elements, was examined by in situ hybridization. In this population the cosmopolitan inversion, In(2L)t, is known to exist in high frequency. One major haplotype concerning the occupied sites of the transposable elements...
متن کاملStudies on differences in the genetic architecture of related species of Drosophila.
ERY little is known about the nature and extent of genetic changes which take place during the process of speciation. DEVRIES believed that new species arose by single mutational events. This is certainly trae in the special case of the origin of species by allopolyploidy. In general, however, species differ from one another in more or less numerous gene substitutions and the origin of species ...
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ژورنال
عنوان ژورنال: Nature
سال: 1933
ISSN: 0028-0836,1476-4687
DOI: 10.1038/131627b0