A chromosomal analysis of seven Cameroonian Acrididae species (Orthoptera: Acridinae, Oedipodinae and Spathosterninae) based on published data
Abstract
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 > O. spissus > P. luculenta > S. pygmaeum > A. turrita > M. fasciata > C.s. producta.
References
Bidau CJ and Marti DA. 2000. Meiosis and the Neo-XY system of Dichroplus vittatus (Melanoplinae: Acrididae): a comparison between sexes.
Bugrov AG, Warchalowska-Sliwa E, Maryanska-Nadachowska A. 1994. Karyotype evolution and chromosome C-banding patterns in some Podisma grasshoppers (Orthoptera: Acrididae) Caryologia, 47: 183-191.
Bugrov AG. 1995. Interpopulation sex chromosome polymorphism in the grasshopper Podisma sapprorensis Shir. From Sakhalin and Kurile Island. Folia Biologica (Krakow), 43: 51 - 53.
Bugrov AG and Sergeev MG. 1997. A new grasshopper species of the genus Podisma, Bertold (Orthoptera-Acrididae) from the Southern Island and its karyotypic features. Acta Zoologica Cracoviensia, 40: 47-52.
Bugrov AG, Warchalowska E, Vysotskaya L. 1999. Karyotypic features of Eyprepocnemidinae grasshoppers from Russia and Central Asia with reference to the B chromosomes in Eyprepocnemis plorans (Charp.). Folia Biologica (Krakow), 47 (3 -4).
Camacho JPM and Cabrero J. 1983. karyological differences between two species of grasshopper genus Acrotylus (Acrididae: Oedipodinae). Caryologia, 36(2): 121-127.
Chadha P and Mehta A. 2011a. Chromosome study in few species of Acridids (Acrididae:Tryxalinae): karyotype analysis and distribution of constitutive heterochromatin. Journal of Entomology and Nematology, 3 (1): 14 – 19.
Chadha P and Mehta A. 2011b. Chromosome complement and C-banding patterns in 6 species of grasshoppers. International Journal of Genetics and Molecular Biology, 3(1): 25-30.
Channaveerappa H and Ranganath H. 1997. Karyology of few species of South Indian Acridids. II. Male germ line karyotypic instability in Gastrimargus. J. Biosci. 22 (3): 367 -374.
Mayya S, Screepada KS, Hegde MJ. 2004. Non-banded and C-banded karyotypes of ten species of short-horned grasshoppers (Acrididae) from South India. Cytologia, 69(2): 167 - 174.
Mestre J and Chiffaud J. 2009. Acridien du Cameroun et de Republique centrafricaine (Orthoptera Caelifera). Supplément au catalogue et atlas des acridiens d’Afrique de l’ouest. Edition numérique ISBN 978-2-9523632-1-1.
Sandhu KS and Chadha P. 2012. Karyological studies of four species of grasshoppers from Gurdaspur district of Punjab, India. Nucleus, online first article, Vo 55(3):1-4.
Seino RA. 1989. Cytogenetic characterization of seven Acridomorphoid grasshoppers. MSc Dissertation, University of Lagos, Nigeria.
Sharma T and Gautam DC. 2002. Karyotypic studies of eleven species of grasshoppers from north-western Himalayas. Nucleus, 45(1-2): 27-35.
Turkoglu S and Koca S. 2002. Karyotype C- and G-band patterns and DNA content of Callimenus (=Bradyporus) macrogaster macrogaster. J. Insect Sci. 2(24): 1-4.
White MJD. 1973. Animal cytology and evolution. Third edition. Cambridge University Press.
Yao S. 2006. The karyotypes and C-band of five Locusta species of Acridoidea in Guizhou. Journal of Guizhou Normal University (Natural Sciences), 2: 3 - 14.
