A chromosomal analysis of seven Cameroonian Acrididae species
Channel: Journal de la recherche en biologie
Date: 2015-10-23

The article entitled “A chromosomal analysis of seven Cameroonian Acrididae species (Orthoptera: Acridinae, Oedipodinae and Spathosterninae) based on published data                          “ was published by Seino Richard Akwanjoh and Dongmo Tonleu Ingrid in the “Journal of Research in Biology”: Volume 3, Issue 4 at pages (947-953). 

The summary of this article goes on as follows,

So far, the karyotypes of seven Acrididae species from Cameroon have been reported. These species included: Acrida turrita, Chirista compta, Coryphosima stenoptera producta, Oxycatantops spissus (Acridinae), Paracinema luculenta, Morphacris fasciata (Oedipodinae) and Spathosternum pygmaeum (Spathosterninae). Karyotype and meiosis relationships among these species were analysed from published data. The species had a common karyotype made up of 23 acrocentric chromosomes (males), the sex mechanism in all seven species was XX♀-XO♂ and meiosis was normal and chiasmate. The chromosomes in the species occurred in three size groups of long, medium and short. The number of chromosomes per size group however varied among the species (A. turrita = 4LL:5MM:2SS; C. compta = 4LL:4MM:3SS; C. stenoptera product = 2LL:6MM:3SS; O. spissus = 5LL:3MM:3SS; P. luculenta = 6LL:2MM:3SS; M. fasciata  = 6LL:2MM:3SS; and S. pygmaeum = 2LL:7MM:2SS). The X chromosome was long in the Oedipodinae, medium in the Acridinae and short in the Spathosterninae. Total length of chromosomal material was in the series C. compta greater than O. spissus greater than P. luculenta greater than   S. pygmaeum greater than A. turrita greater than M. fasciata greater than C.s. producta.

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