WebIn the stalk-eyed fly, Cyrtodiopsis whitei (Diptera, Diopsidae), sperm precedence is influenced by the presence of sex chromosome meiotic drive. When drive-carrying males compete with non-driving males for fertilizations within a female, the number of progeny sired by drive males is significantly fewer than predicted by sperm mixing alone. WebIn the stalk-eyed fly, Cyrtodiopsis whitei (Diptera, Diopsidae), sperm precedence is influenced by the presence of sex chromosome meiotic drive. When drive-carrying males compete with non-driving males for fertilizations within a female, the number of progeny sired by drive males is significantly fewer than predicted by sperm mixing alone.
[PDF] Sperm development, age and sex chromosome meiotic drive …
WebTwo species, Cyrtodiopsis whitei and C dahnanni, exhibit extreme sexual dimorphism in eye span, with eye stalks exceeding body length in large males. In contrast, C qiunqutguttata of both sexes possess short eye stalks. ... In addition, female C whitei and C. dalmanm exhibited shorter copulations, mated more frequently, and rejected fewer ... Webeyed fly, Cyrtodiopsis whitei, influences progeny sex proportion, in order to determine if a common developmental mechanism could cause meiotic drive in these distantly related taxa. Because age has been found to a•ect the degree of segregation distortion in some Drosophila, we tested flies from six to 26 weeks of age. horseshoe inn cambridge
How stalk-eyed flies eye stalk-eyed flies: Observations and
WebChytridiomycosis is an infectious disease of amphibians caused by the fungus Batrachochytrium dendrobatidis (Bd).It an emerging disease that is significantly … Webmonomorphic eye stalks are plesiomorphic in Cyrtodiopsis. Observations of multiple copulations by females in paired-choice mating chambers indicated that female C whitei and C. dalmanm exhibit relative preferences for longer eye stalks such that preference intensity increases linearly with the difference in eye stalk length between males. WebCryptotis. The genus Cryptotis is a group of relatively small shrews with short ears, which are usually not visible, and short tails, commonly called small-eared shrews. They have … horseshoe inn burns oregon