Download Advances in Genetics, Development, and Evolution of by W.-E Kalisch, K. Hägele (auth.), Seppo Lakovaara (eds.) PDF

By W.-E Kalisch, K. Hägele (auth.), Seppo Lakovaara (eds.)

In 1906 citadel, chippie, Clarke, Mast, and Barrows released a paper entitled "The results of inbreeding, cross-breeding, and choice upon the fertility and variability of Drosophila." this text, fifty five pages lengthy and released within the court cases of the Amer­ ican Academy, defined experiments played with Drosophila ampe­ lophila Lov, "a small dipterous insect recognized lower than a variety of well known names akin to the little fruit fly, pomace fly, vinegar fly, wine fly, and pickled fruit fly." This learn, which used to be began in 1901 and released in 1906, was once the 1st released experimental examine utilizing Drosophila, for this reason referred to as Drosophila melanogaster Meigen. in fact, Drosophila was once recognized sooner than the experiments of Cas­ tles's staff. The small flies swarming round grapes and wine pots have definitely been often called lengthy as wine has been produced. the respect of what used to be the 1st recognized misclassification of the fruit flies is going to Fabricius who named them Musca funebris in 1787. It used to be the Swedish dipterist, C.F. Fallen, who in 1823 replaced the identify of ~ funebris to Drosophila funebris which used to be heralding the start of the genus Drosophila. Present-day Drosophila examine was once all started simply eighty years in the past and primary released in simple terms seventy five years in the past. even supposing the heritage of Drosophila examine is brief, the impression and quantity of research on Drosophila has been large over the past decades.

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3. 4' F Fig. 2. A schematic reconstruction of the X chromosome divisions 2 and 3 of Drosophila melanogaster according to the electron micrographs. EM MAP FOR THE X CHROMOSOME Fig. 3. 27 A schematic reconstruction of the X chromosome divisions 4 and 5 of Drosophila melanogaster based on electron micrographs. 28 VEIKKO SORSA The identification and numbering of the bands follow the revised map of Bridges (1938) as far as the correspondence between bands is obvious. The previously undetected bands located interstitially between numbered bands are marked by arrow-signs.

Sorsa, V. , 1980a, Electron microscopic analysis of banding pattern in the salivary gland chromosomes of Drosophila melanogaster. Divisions 1 and 2 of X, Hereditas, 92:73. Sorsa, V. , 1980b, Electron microscopic analysis of the banding pattern in the salivary gland chromosomes of Drosophila melanogaster. Divisions 3, 4 and 5 of X, Hereditas, 92:341. PATTERNS OF PUFFING ACTIVITY IN THE POLYTENE CHROMOSOMES OF DROSOPHILA SUBOBSCURA R. de Frutos and A. Latorre Department of Genetics Faculty of Science, University of Valencia Spain INTRODUCTION The puffs and Balbiani rings are the visible expression of sites of genetic activity (Beerman, 1952).

1978, Behaviour of chromosomes during mitosis and meiosis and chromocentral organization of nuclei in Drosophila melanogaster, Proc. 14th Int. Congr. , Moscow, (in press). F. ), 13:477. F. , 1980, Spontaneous interchanges in females of Drosophila melanogaster. Part 1: Formation of halftranslocation in XX and XXY females, Theor. Appl. , 56:161. F. , 1981, Meiotic asynapsis of centromeric regions and its effects on crossing-over and chromosome distribution in Drosophila females, Dokl. Acad. ), (in press).

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