MEIOTIC BEHAVIOR OF B-CHROMOSOMES IN THE GRASSHOPPER OMOCESTUS-BURRI - A CASE OF DRIVE IN FEMALES

Authors
SANTOS JL DELCERRO AL FERNANDEZ A DIEZ M
Citation
Jl. Santos et al., MEIOTIC BEHAVIOR OF B-CHROMOSOMES IN THE GRASSHOPPER OMOCESTUS-BURRI - A CASE OF DRIVE IN FEMALES, Hereditas, 118(2), 1993, pp. 139-143
Citations number
13
Categorie Soggetti
Genetics & Heredity
Journal title
Hereditas → ACNP
ISSN journal
00180661
Volume
118
Issue
2
Year of publication
1993
Pages
139 - 143
Database
ISI
SICI code
0018-0661(1993)118:2<139:MBOBIT>2.0.ZU;2-X
Abstract
The meiotic behaviour of an iso-B chromosome of the grasshopper Omoces tus burri has been studied in a natural population located at Villar d el Cobo (Teruel, Spain) by means of cytological observations of male a nd female meiosis. Whereas B chromosomes do not accumulate in the male germ line, they are included in the secondary oocyte at an increased frequency over mendelian expectations. Therefore, an accumulation mech anism of the accessory chromosome based on meiotic drive takes place i n the females of this species.