Meiotic drive alters sperm competitive ability in stalk-eyed flies
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چکیده
منابع مشابه
Meiotic drive alters sperm competitive ability in stalk-eyed flies.
Meiotic drive results when sperm carrying a driving chromosome preferentially survive development. Meiotic drive should therefore influence sperm competition because drive males produce fewer sperm than non-drive males. Whether meiotic drive also influences the competitive ability of sperm after ejaculation is unknown. Here we report the results from reciprocal crosses that are designed for est...
متن کاملSperm survival in female stalk-eyed flies depends on seminal fluid and meiotic drive.
Sperm competition is common in many insect species; however, the mechanisms underlying differences in sperm precedence are not well understood. In 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 p...
متن کاملReproductive Isolation and X Chromosome Meiotic Drive in Cyrtodiopsis Stalk-eyed Flies
Title of Document: REPRODUCTIVE ISOLATION AND X CHROMOSOME MEIOTIC DRIVE IN CYRTODIOPSIS STALK-EYED FLIES. Sarah J. Christianson, Doctor of Philosophy, 2008 Directed By: Professor Gerald Wilkinson, Department of Biology Haldane’s rule states that when one sex of hybrids shows sterility or inviability it tends to be the heterogametic sex. This pattern is considered a fundamental law of speciatio...
متن کاملMeiotic Drive Impacts Expression and Evolution of X-Linked Genes in Stalk-Eyed Flies
Although sex chromosome meiotic drive has been observed in a variety of species for over 50 years, the genes causing drive are only known in a few cases, and none of these cases cause distorted sex-ratios in nature. In stalk-eyed flies (Teleopsis dalmanni), driving X chromosomes are commonly found at frequencies approaching 30% in the wild, but the genetic basis of drive has remained elusive du...
متن کاملStalk-eyed flies
success because in this highly competitive business, many males’ bowers are rarely visited by females. The researchers assessed the quality of the bowers in terms of the density and thickness of the sticks used in its construction and also its symmetry. They also checked the decorations on display and grouped them into five categories: artificial and yellow, brown, blue and white natural. The b...
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ژورنال
عنوان ژورنال: Proceedings of the Royal Society of London. Series B: Biological Sciences
سال: 2001
ISSN: 0962-8452,1471-2954
DOI: 10.1098/rspb.2001.1831