title: Standard and C-banded meiotic karyotypes of Psylloidea (Sternorrhyncha, Homoptera, Insecta).
abstract: Meiotic karyotypes were studied in males of Craspedolepta sonchi (Foerster, 1848), Diaphorina chobauti Puton, 1898, D. lamproptera Burckhardt, 1981, Psylla hartigii Flor, 1861, Cacopsylla palmeni (Loew, 1878), C. hippophaes (Foerster, 1848), C. melanoneura (Foerster, 1868), C. pyricola (Foerster 1848), C. moscovita (Andrianova, 1848), Bactericera salicivora (Reuter, 1876), Trioza abdominalis Flor, 1861, T. lauri = Lauritrioza alacris (Flor, 1861). Karyotypes were 2n = 25 (24 + XO) in all species except B. salicivora with 2n = 26 (24 + neo-XY). Testes consisted of two follicles each in all species but P. hartigii with four-follicular testes in males. The discussion covers the problems of chromosome numbers, sex-determining chromosome systems, B-chromosomes, patterns of C-banding, testis structure, and spermatid development in Psylloidea.
authors.affiliation: Department of Experimental Zoology, Institute of Systematics and Evolution of Animals, Polish Academy of Sciences, Sławkowska 17, 31-016 Kraków, Poland. maryanska@isez.pan.krakow.pl
authors.forename: A
authors.initials: A
authors.lastname: Maryańska-Nadachowska
authors.forename: V G
authors.initials: VG
authors.lastname: Kuznetsova
authors.forename: S
authors.initials: S
authors.lastname: Nokkala
mesh_terms: D000818:Animals; D005260:Female; D005387:Finland; D006430:Hemiptera / Q000166:cytology / Q000235:genetics* / Q000502:physiology; D007557:Israel; D007558:Italy; D007621:Karyotyping; D008297:Male; D008540:Meiosis / Q000235:genetics; D008858:Microscopy, Phase-Contrast; D011044:Poland; D012730:Sex Chromosomes / Q000235:genetics / Q000502:physiology; D013737:Testis / Q000502:physiology