منابع مشابه
Tribolium
Not to be confused with.. Tribolium castaneum, the red flour beetle, is often confused with Tenebrio molitor, the common ‘meal worm’ found in pet shops. Although morphologically similar to Tenebrio, Tribolium is much smaller and even easier to breed. That’s why this beetle was used by population geneticists for decades before it was rediscovered as a system in which embryonic development, and o...
متن کاملParental RNAi in Tribolium (Coleoptera)
RNA interference (RNAi) allows for rapid and straightforward analysis of gene function. RNAi can be applied with special ease in Caenorhabditis elegans where injection of dsRNA into the body cavity or application of dsRNA via ingestion leads to gene inactivation in offspring embryos [1,2]. This parental RNAi effect made possible efficient genome-wide functional screens in this organism [3]. Her...
متن کاملGenetic Homeostasis and Developmental Rate in Tribolium.
ENETIC analysis of a variety of traits in populations of several species has revealed a similar pattern for many traits which are important components of fitness. In general such characters have intermediate optima, and prolonged artificial selection for extreme expression leads to a reduction in fitness. LERNER (1954, 1958) has postulated that one possible mechanism for natural selection in fa...
متن کاملAtypical centrioles are present in Tribolium sperm
Typical centrioles are made of microtubules organized in ninefold symmetry. Most animal somatic cells have two centrioles for normal cell division and function. These centrioles originate from the zygote, but because the oocyte does not provide any centrioles, it is surprising that the zygotes of many animals are thought to inherit only one centriole from the sperm. Recently, in the sperm of Dr...
متن کاملThe Humidity Responses of Tribolium Confusum
Larval and adult Tribolium confusum were tested in flour and sand substrates at various relative humidities, ranging from 10% to 90%. Both life stages preferred a flour environment of from 10% to 50% relative humidity. In sand, however, the insects selected more humid environments. Investigations of survival in sand, flour, and air environments indicated that two factors may be operating in the...
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ژورنال
عنوان ژورنال: Current Biology
سال: 2004
ISSN: 0960-9822
DOI: 10.1016/j.cub.2004.08.004