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Meiotic drive at the D(MD) locus and fertility in the mosquito, Aedes aegypti (L.)

โœ Scribed by R. J. Hastings; R. J. Wood

Publisher
Springer Netherlands
Year
1978
Tongue
English
Weight
369 KB
Volume
49
Category
Article
ISSN
0016-6707

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โœฆ Synopsis

The Distorter gene D in Aedes aegypti shows meiotic drive when associated with the male-determining M gcne, causing sex ratio distortion in favour of males. The fertility of Distorter (MD/m s) and normal (M/m-) males has been compared by mating them to a series of females at daily intervals and assessing egg production and yield of pupae.

Individual males inseminated up to seven females (mean 4.4 to 4.5). E~ production by females mated to the two kinds of male was not significantly different. Mean eggs/clutch did not differ significantly between successive matings.

The percentage of eggs yielding pupae was significantly lower for Distorter males, in all matings. This loss in fertility was more than enough to account for sex ratio distortion in terms of a differential reduction in functional X-bearing spermatozoa. It was equally obvious that zygotic or post-zygotic mortality could not have produced the observed sex ratio difference.

๐Ÿ“œ SIMILAR VOLUMES

Meiotic drive at the D(MD) locus and fer
Meiotic drive at the D(MD) locus and fertility in the mosquito, Aedes aegypti (L.)
โœ J. H. A. M. Youngson; H. M. Welch; R. J. Wood ๐Ÿ“‚ Article ๐Ÿ“… 1981 ๐Ÿ› Springer Netherlands ๐ŸŒ English โš– 499 KB

The difference in percentage hatch from the two matings was small, indicating that spermatozoa were produced in superabundance so that the overall fertility of Distorter males was not greatly reduced. The reduction in the number of spermatozoa is, however, less than expected from the number of X ch

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โœ A. M. Pearson; R. J. Wood ๐Ÿ“‚ Article ๐Ÿ“… 1980 ๐Ÿ› Springer Netherlands ๐ŸŒ English โš– 556 KB

Sex-ratio distortion has been investigated in males carrying the Y(M)-linked meiotic-drive gene D, from three different strains (Bozo, Caracas and Trinidad), paired with Chipei X-chromosomes highly sensitive to D. The effect of D was tested on its own and also associated with a 1-3 translocation (de

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Combining the meiotic drive gene D and the translocation T1in the mosquito, Aedes aegypti (L.) II. Recombination
โœ A. M. Pearson; R. J. Wood ๐Ÿ“‚ Article ๐Ÿ“… 1980 ๐Ÿ› Springer Netherlands ๐ŸŒ English โš– 418 KB

Recombination on the sex-chromosome of Aedes aegypti has been studied in male genotypes incorporating the sex-linked translocation T1 and the meiotic drive gene D from three different strains (Trinidad, Bozo and Caracas). The introduction of the D gene was associated with an increase in recombinati