Fly size, emergence time and sternopleural chaeta number in Drosophila
نویسندگان
چکیده
منابع مشابه
Gene Number, Kind, and Size in Drosophila.
The literature on X-ray effects contains two fundamental ideas which, if combined, should offer a better understanding of the physical properties of the gene on the one hand, and of the mechanism by which X-rays affect living tissue on the other. The first of these ideas is due to CROWTHER. He interpreted the rates at which living cells are killed by X-rays as due to the destruction of a vital ...
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All insect ovaries are composed of functional units called ovarioles, which contain sequentially developing egg chambers. The number of ovarioles varies between and within species. Ovariole number is an important determinant of fecundity and thus affects individual fitness. Although Drosophila oogenesis has been intensively studied, the genetic and cellular basis for determination of ovariole n...
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Among the explanations for minimizing the effects of extraneous variation has been canalization and developmental stability. However, there is little agreement as to whether these two processes reflect a common set of mechanisms. This confusion is inflated due to the lack of consensus as to a precise definition of canalization. In this study, canalization in the sternopleural bristle system is ...
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Lengths, widths and volumes of eggs from 11 species of Drosophila whose genomes have been fully sequenced exhibit significant variation that is not explained by their phylogenetic relationships. Furthermore, egg size differences are unrelated to embryonic development time in these species. In addition, two of the species, Drosophila sechellia and, to a lesser degree, D. yakuba, both ecological ...
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Petrov, Lozovskaya, and Hartl (1996) demonstrated that unconstrained regions of the non-long terminal repeat retrotransposable element Helena lose DNA at an unusually high rate in species of the Drosophila virilis species group. More recent data also indicate a high rate of DNA loss of Helena in species of the Drosophila melanogaster species subgroup (Petrov and Hartl 1998). Based on these obse...
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ژورنال
عنوان ژورنال: Heredity
سال: 1961
ISSN: 0018-067X,1365-2540
DOI: 10.1038/hdy.1961.52