scholarly journals Evidence for Two Regions in the Mouse t Complex Controlling Transmission Ratios

1981 ◽  
Vol 38 (3) ◽  
pp. 315-325 ◽  
Author(s):  
Józefa Styrna ◽  
Jan Klein
Keyword(s):  
Lethal Factor ◽  
Compound Heterozygote ◽  
The Other ◽  
Transmission Ratio ◽  
Crossing Over ◽  
Normal Length ◽  
T Complex ◽  
Segregation Distorter ◽  
Haplotype A ◽  
Made In

SUMMARYFour new t haplotypes, tTu1 through tTu4, are described, three of them derived from the tw12tf haplotype and one (tTu4) from the tw2 haplotype. The tTu1 and tTu4 haplotypes cause taillessness in T/tTu1 or T/tTu4 heterozygotes, lack the lethality factor, weakly suppress recombination in the T−H−2 interval, and are transmitted to offspring from tTu/ + males at nearly Mendelian ratios. The tTu3 haplotype resembles tTu1 and tTu4 except for the fact that the T/tTu3 heterozygotes have normal-length tails. The tTu2 haplotype probably carries the lethal factor of tTu12tf, suppresses crossing-over in the T-H-2 and tf-H-2 intervals, and displays a slightly subnormal transmission ratio. In the compound heterozygote tTu1/tTu2, the male transmission ratio of the tTu1 chromosome is close to that of the original tTu12tf haplotype. A similar effect is observed in the tTu3/tTu2 heterozygote. This observation is interpreted as evidence for two regions within the t complex controlling the male transmission ratios. One of the regions is close to the tail-modifying region, the other is close to the lethality factor. Our findings parallel closely those made in the segregation distorter system in Drosophila.

scholarly journals MULTIPLE MEIOTIC DRIVE SYSTEMS IN THE DROSOPHILA MELANOGASTER MALE

Genetics ◽  
1972 ◽  
Vol 72 (1) ◽  
pp. 105-115
Author(s):  
George L Gabor Miklos ◽  
Armon F Yanders ◽  
W J Peacock
Keyword(s):  
Drosophila Melanogaster ◽  
Survival Probability ◽  
Sex Chromosome ◽  
Meiotic Drive ◽  
The Other ◽  
Segregation Distorter ◽  
Two Systems ◽  
Combined Action ◽  
Drive Systems

ABSTRACT The behaviour of two "meiotic drive" systems, Segregation-Distorter (SD) and the sex chromosome sc4sc8 has been examined in the same meiocyte. It has been found that the two systems interact in a specific way. When the distorting effects of SD and sc4sc8 are against each other, there is no detectable interaction. Each system is apparently oblivious to the presence of the other, gametes being produced according to independence expectations. However when the affected chromosomes are at the same meiotic pole an interaction occurs; the survival probability of the gamete containing both distorted chromosomal products is increased, rather than being decreased by the combined action of two systems.

scholarly journals Large-Scale Selective Sweep among Segregation Distorter Chromosomes in African Populations of Drosophila melanogaster

PLoS Genetics ◽  
2009 ◽  
Vol 5 (5) ◽  
pp. e1000463 ◽  
Author(s):  
Daven C. Presgraves ◽  
Pierre R. Gérard ◽  
Anjuli Cherukuri ◽  
Terrence W. Lyttle
Keyword(s):  
Drosophila Melanogaster ◽  
Large Scale ◽  
Selective Sweep ◽  
African Populations ◽  
Segregation Distorter

scholarly journals Fitness consequences of the selfish supergene Segregation Distorter

2019 ◽  
Vol 33 (1) ◽  
pp. 89-100 ◽  
Author(s):  
Heidi W. S. Wong ◽  
Luke Holman
Keyword(s):  
Fitness Consequences ◽  
Segregation Distorter

Progeny: Sperm ratios and segregation-distorter inDrosophila melanogaster

Genetica ◽  
1970 ◽  
Vol 41 (1) ◽  
pp. 61-64 ◽  
Author(s):  
S. Zimmering ◽  
J. M. Barnabo ◽  
J. Femino ◽  
G. L. Fowler
Keyword(s):  
Segregation Distorter
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