Meiotic Transmission of Drosophila pseudoobscura Chromosomal Arrangements
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منابع مشابه
Meiotic Transmission of Drosophila pseudoobscura Chromosomal Arrangements
Drosophila pseudoobscura harbors a rich gene arrangement polymorphism on the third chromosome generated by a series of overlapping paracentric inversions. The arrangements suppress recombination in heterokaryotypic individuals, which allows for the selective maintenance of coadapted gene complexes. Previous mapping experiments used to determine the degree to which recombination is suppressed in...
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ITH a positive correlation between mating speed of homokaryotypes and the Wf requency of gene arrangements from the Mather, California, population of Drosophila pseudoobscura, it became clear that gene complexes included in those arrangements must play a prominent role in courtship behavior, a role essential to fitness in natural populations (SPIES and LANGER 1964a). In its sibling species, D. ...
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Lines containing two third-chromosome inversions (Arrowhead and Pikes Peak) of Drosophila pseudoobscura selected for fast and slow mating speed were crossed to a multichromosomal, dominant marker inversion stock, and strains with various combinations of chromosomal derivation were tested for their mating activity. When lines were selected isodirectionally with the known third-chromosome control...
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EVENTEEN gene arrangements, related to each other as single or S multiple inversions, were described by DOBZHANSKY and STURTEVANT (1938) in the third chromosome of Drosophila pseudoobscura. Some of these gene arrangements have a wide, and others a narrow geographical distribution. In some localities the entire population is uniform, but more commonly several arrangements are found together. Dif...
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Most natural populations of Drosophila pseudoobscura are mixtures of individuals homozygous and heterozygous for gene arrangements in the third chromosome. The relative frequencies of the gene arrangements in populations show geographical and temporal variations. On Mount San Jacinto and in the Sierra Kevada in California, and in some localities in Texas, the temporal variations are cyclic and ...
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ژورنال
عنوان ژورنال: PLoS ONE
سال: 2007
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0000530