Cytogenetics of three parthenogenetic Psocid species (Psocoptera, Psocomorpha)

被引:8
|
作者
Nokkala, S [1 ]
Golub, NV
机构
[1] Turku Univ, Dept Biol, Genet Lab, FIN-20014 Turku, Finland
[2] Russian Acad Sci, Inst Zool, Dept Karyosytemat, St Petersburg, Russia
来源
HEREDITAS | 2002年 / 137卷 / 03期
关键词
D O I
10.1034/j.1601-5223.2002.01681.x
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
A novel method was applied to study chromosomes and their behavior in female meiosis in three parthenogenetic psocid species (Psocoptera). Two of these species Valenzuela flavidus (Steph.). Caeciliusidae and Peripsocus subfasciatus (Rambur), Peripsocidae displayed a triploid chromosome number 3x = 27 while the third species Trichadenotecnum majus (Kolbe) was diploid (2n = 18). In all species meiosis consisted of only a single, mitosis-like maturation division, i.e. meiosis was of apomictic type. Models for the formation of polyploid parthenogenetic forms are discussed.
引用
收藏
页码:198 / 201
页数:4
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