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Karyotypes, B-chromosomes and meiotic abnormalities in 13 populations of Alebra albostriella and A. wahlbergi (Hemiptera, Auchenorrhyncha, Cicadellidae) from Greece
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Orientador(es)
Resumo(s)
In this work 13 populations of the leafhopper species Alebra albostriella (Fallén, 1826) (6 populations) and
A. wahlbergi (Boheman, 1845) (7 populations) (Cicadellidae: Typhlocybinae) from Greece were studied
cytogenetically. We examined chromosomal complements and meiosis in 41 males of A. albostriella sam pled from Castanea sativa, Fagus sylvatica and Quercus cerris and in 21 males of A. wahlbergi sampled from
C. sativa, Acer opalus and Ulmus sp. The species were shown to share 2n = 22 + X(0) and male meiosis of
the chiasmate preductional type typical for Auchenorrhyncha. In all populations of A. albostriella and in
all but two populations of A. wahlbergi B chromosomes and/or different meiotic abnormalities including
the end-to-end non-homologous chromosomal associations, translocation chains, univalents, anaphasic
laggards besides aberrant sperms were encountered. This study represents the first chromosomal record for
the genus Alebra and one of the few population-cytogenetic studies in the Auchenorrhyncha.
Descrição
Palavras-chave
Karyotype Meiosis Chromosomal associations Translocations Macrospermatids B-chromosomes Greek populations Alebra Auchenorrhyncha Cicadellidae . Faculdade de Ciências da Vida
Contexto Educativo
Citação
Kuznetsova, V. G., Golub, N. V., & Aguin-Pombo, D. (2013). Karyotypes, B-chromosomes and meiotic abnormalities in 13 populations of Alebra albostriella and A. wahlbergi (Hemiptera, Auchenorrhyncha, Cicadellidae) from Greece. Comparative Cytogenetics, 7(4), 305. doi: 10.3897/CompCytogen.v7i4.6411
Editora
Pensoft Publishers