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The effect of B chromosomes on mating success of the grasshopperEyprepocnemis plorans

✍ Scribed by Silvia Martín; Pilar Arana; Nuno Henriques-Gil

Publisher
Springer Netherlands
Year
1996
Tongue
English
Weight
431 KB
Volume
97
Category
Article
ISSN
0016-6707

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✦ Synopsis

The mating ability ofE. plorans was tested in laboratory conditions in six experimental units composed often males and fifteen females during 31 days. When significant differences were found (three from the six cages, and in totals) they involved a decrease of matings involving males with B chromosomes. The same tendency seems to exist in females, but to a lesser extent, so that a significant effect is only detected when the totals are considered. Accessory chromosomes also delay, in both sexes, the occurrence of the first mating. No mating preferences depending on the number of Bs were detected.

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Genotype-dependent effect of B-chromosom
Genotype-dependent effect of B-chromosomes on chiasma frequency inEyprepocnemis plorans(Acrididae: Orthoptera)
✍ N. Henriques-Gil; J. L. Santos; R. Giraldez 📂 Article 📅 1982 🏛 Springer Netherlands 🌐 English ⚖ 452 KB

I n order to analyze the effect of B-chromosomes on chiasma frequency, the offspring of different females of the grasshopper Eyprepocnemis plorans have been studied. From the comparison between individuals of the different families having a given number of B's and between individuals with different