Developmental interactions of homoeotic and growth rate genes in Drosophila melanogaster

✍ Scribed by Claude A. Villee

• Publisher: John Wiley and Sons
• Year: 1945
• Tongue: English
• Weight: 826 KB
• Volume: 77
• Category: Article
• ISSN: 0362-2525
• DOI: 10.1002/jmor.1050770106

✦ Synopsis

TWENTY FIGUR.ES

Homoeosis is the term introduced by Bateson (1894) for the replacement of one organ of a segmental series by some homologous member of the series. A review of homoeosis has been given elsewhere (Villee, '42b). The first homoeotic mutants of Drosophila melanogaster to be described were bithorax (bx, chromosome 3, locus 58.8) and bithoraxoid (bxd, 3, 58.8 +) (Bridges and Morgan, '23) which change the metathorax and balancer into a mesothorax-like structure bearing bristles, a scutellum, and a more or less wing-like structure. Tetraptera (ttr, 3, ' t = " t d . is1 ' > > + 4 "aiista/tarsus" + + ( ( t y p e 4" + $ "type 5." a + t = " t a r s i " + "aristae" + "arista/tarsus" + "type 4 " + type 5." The flies with small stumps in place of oral lobes mere omitted f r o m the calculations.