نتایج جستجو برای: drosophila
تعداد نتایج: 69837 فیلتر نتایج به سال:
Mutator activity associated with the common male recombination (MR) chromosomes in Drosophila melanogaster appears to be suppressed in natural populations. Crosses between geographically separated populations, however, lead to the release of mutator activity as measured by a significant increase in visible mutations. Such an increase in mutation in hybrid individuals may be a powerful factor in...
Tadeusz Dêbniak, Cezary Cybulski, Grzegorz Kurzawski, Bohdan Górski, Tomasz Huzarski, Tomasz Byrski, Jacek Gronwald, Janina Suchy, Bart3omiej Masojæ, Marek Mierzejewski, Marcin Lener, Urszula Teodorczyk, Krzysztof Mêdrek, El¿bieta Z3owocka, Ewa Grabowska-K3ujszo, Katarzyna Nej-Wo3osiak, Anna Szymañska, Jolanta Szymañska-Pasternak, Joanna Matyjasik, Thierry van de Wetering, Anna Jakubowska, Oleg...
The tseet contact call, common to black-capped (Poecile atricapillus) and mountain chickadees (P. gambeli), is the most frequently produced vocalization of each species. Previous work has characterized the tseet call of black-capped and mountain chickadees from different geographic locations in terms of nine acoustic features. In the current study, using similar methods, the tseet call of black...
Identifying regions of the Drosophila melanogaster genome that have been recent targets of positive Darwinian selection will provide evidence for adaptations that have helped this species to colonize temperate habitats. We have begun a search for such genomic regions by analyzing multiple loci (about 250) dispersed across the X chromosome in a putatively ancestral population from East Africa an...
Porous nitrogen-rich carbon (POF-C-1000) that was synthesized by using a porous organic framework (POF) as a self-sacrificing host template in a nanocasting process possessed a high degree of graphitization in an ordered structural arrangement with large domains and well-ordered arrays of carbon sheets. POF-C-1000 exhibits favorable electrocatalytic activity for the oxygen-reduction reaction (O...
The consequences of sexual interactions extend beyond the simple production of offspring. These interactions typically entail direct effects on female fitness, but may also impact the life histories of later generations. Evaluating the cross-generational effects of sexual interactions provides insights into the dynamics of sexual selection and conflict. Such studies can elucidate whether offspr...
The triazoloquinazoline fused-ring system of the title compound, C(10)H(8)N(4)O(3)S, is essentially planar (r.m.s. deviation = 0.027 Å). In the crystal, adjacent mol-ecules are linked by N-H⋯O(sulfon-yl) hydrogen bonds, generating a helical chain running along the b axis.
In many animal species, learning and memory have been found to play important roles in regulating intra- and interspecific behavioral interactions in varying environments. In such contexts, aggression is commonly used to obtain desired resources. Previous defeats or victories during aggressive interactions have been shown to influence the outcome of later contests, revealing loser and winner ef...
Drosophila suzukii Matsumura, 1931 (Diptera: Drosophilidae) is an invasive pest species that causes damage to fruit crops due premature deterioration of ripe fruits by oviposition inside them. A review D. detections in Argentina was carried out and we updated this list with the results our sampling Northwest, Cuyo Northeast regions. The surveys determined first provinces Jujuy Córdoba, revealin...
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