Search results
Results From The WOW.Com Content Network
The opsin Rh7 entrains with cryptochrome the circadian rhythm of Drosophila to the day-night-cycle in the central pacemaker neurons. [161] Each Drosophila opsin binds the carotenoid chromophore 11-cis-3-hydroxyretinal via a lysine. [162] [163] This lysine is conserved in almost all opsins, only a few opsins have lost it during evolution. [164]
Drosophila embryogenesis, the process by which Drosophila (fruit fly) embryos form, is a favorite model system for genetics and developmental biology. The study of its embryogenesis unlocked the century-long puzzle of how development was controlled, creating the field of evolutionary developmental biology . [ 1 ]
Drosophila (/ d r ə ˈ s ɒ f ɪ l ə, d r ɒ-, d r oʊ-/ [1] [2]) is a genus of fly, belonging to the family Drosophilidae, whose members are often called "small fruit flies" or pomace flies, vinegar flies, or wine flies, a reference to the characteristic of many species to linger around overripe or rotting fruit.
Hawaiian Drosophila have been studied as models of speciation, population genetics and genomics, as well as for evolution of behavior and evolutionary development (aka evo-devo). [1] Research in the 1970s-80s by Hampton L. Carson and others studying patterns of chromosome banding , mating behavior, and hybridization helped resolve relationships ...
In early Drosophila development, the embryo passes through thirteen nuclear divisions (karyokinesis) without cytokinesis, resulting in a multinucleate cell (generally referred to as a syncytium, but strictly a coenocyte [1]). Pole cells are the cells that form at the polar ends of the Drosophila egg, which begin the adult germ cells. [2]
Additionally, Drosophila subobscura, also within the genus Drosophila, has been reputed as a model organism for evolutionary-biological studies, [3] along with D. sechellia for the evolution of host specialization on the toxic noni fruit [4] and Scaptomyza flava for the evolution of herbivory and specialist on toxic mustard leaves. [5]
A species of Drosophila mating via male mounting onto the female from behind. D. subobscura is monandrous, a behavior not usually seen among Drosophila. [28] Visual stimuli dictate courtship behavior. [29] D. subobscura do not mate in the dark [30] and do not produce a courtship song via wing vibrations like other species of Dipterans. [31]
Drosophila silvestris is a large species of fly in the family Drosophilidae that are primarily black with yellow spots. As a rare species of fruit fly endemic to Hawaii (“the Big Island”), the fly often experiences reproductive isolation . [ 1 ]