Variation in Y chromosome segregation in natural populations of Drosophila melanogaster

Journal Article · Thu Jan 01 04:00:00 EST 1987 · Genetics; (United States)

OSTI ID:6869812

Clark, A G

Functional variation among Y chromosomes in natural populations of Drosophila melanogaster was assayed by a segregation study. A total of 36 Y chromosomes was extracted and ten generations of replacement backcrossing yielded stocks with Y chromosomes in two different genetic backgrounds. Eleven of the Y chromosomes were from diverse geographic origins, and the remaining 25 were from locally captured flies. Segregation of sexes in adult offspring was scored for the four possible crosses among the two backgrounds with each Y chromosome. Although the design confounds meiotic drive and effects on viability, statistical partitioning of these effects reveals significant variation among lines in Y chromosome segregation. Results are discussed in regards to models of Y-linked segregation and viability effects, which suggest that Y-linked adaptive polymorphism is unlikely.

• Research Organization: Pennsylvania State Univ., University Park
• OSTI ID: 6869812
• Journal Information: Genetics; (United States), Journal Name: Genetics; (United States) Vol. 115:1; ISSN GENTA
• Country of Publication: United States
• Language: English

Related Subjects

550400* -- Genetics
59 BASIC BIOLOGICAL SCIENCES
ANIMALS
ARTHROPODS
BIOLOGICAL VARIABILITY
CHROMOSOMES
DIPTERA
DROSOPHILA
FLIES
FRUIT FLIES
GENETIC VARIABILITY
HETEROCHROMOSOMES
INSECTS
INVERTEBRATES
MATHEMATICAL MODELS
MUTATIONS
VIABILITY
Y CHROMOSOME