Publication Type: | Journal Article |
: | 1995 |
Authors: | M. Holecova, Rozek, M., Lachowska, D. |
Journal: | Folia Biologica (Cracow) |
Volume: | 43 |
Pagination: | 41-49 |
Type of Article: | Article |
: | 0015-5497 |
: | Adexius scrobipennis, Lixus cardui, Nedyus quadrimaculatus, Otiorhynchus opulentus, Phyllobius arborator, Phyllobius oblongus, Polydrusus ruficornis, Rhinomias forticornis |
: | Karyological investigations were carried out on eight species of bisexual weevil belonging to five subfamilies, viz. - Otiorhynchinae, Brachyderinae, Cleoninae, Hylobiinae, Ceutorhynchinae. The following numbers of chromosomes were found in individual species: 2n = 22, n male = 10+Xy-p in Otiorhynchus opulentus Germ., Phyllobius oblongus (L), Phyllobius arborator (Herbst), Rhinomias forticornis (Boh.). Polydrusus ruficornis (Bonsd.); 2n = 44, n male = 21+Xy-p in Lixus cardui Ol.; 2n = 36, n male = 17+Xy-p in Adexius scrobipennis Gyll., and 2n = 28, n male = 13+Xy-p in Nedyus auadrimaculatus (L.). The heterochromosomes of all species form, in the first meiotic metaphase, a parachute bivalent. The mitoses were observed and analysed in three species. The karyotype of Nedyus quadrimaculatus (L) is constituted by metacentric chromosomes; the karyotypes of Phyllobius oblongus (L) and Rhinomias forticornis (Boh.) by metacentric and submetacentric ones. |
Chromosome complement and meiosis in eight bisexual species of weevil (Curculionidae, Coleoptera)
Taxonomic name:
Nedyus quadrimaculatus (Alonso-Zarazaga & Lyal, 1999 (amended)), Phyllobius oblongus (Alonso-Zarazaga & Lyal, 1999 (amended)), Lixus cardui (Alonso-Zarazaga & Lyal, 1999 (amended)), Phyllobius arborator (Alonso-Zarazaga & Lyal, 1999 (amended)), Adexius scrobipennis (Alonso-Zarazaga & Lyal, 1999 (amended)), Otiorhynchus opulentus (Alonso-Zarazaga & Lyal, 1999 (amended)), Polydrusus ruficornis (Alonso-Zarazaga & Lyal, 1999 (amended)), Rhinomias forticornis (Alonso-Zarazaga & Lyal, 1999 (amended))