Genetics of Glossina morsitans morsitans (Diptera: Glossinidae). XIV. Map locations of the loci for phosphoglucomutase and glucose-6-phosphate isomerase

Genome ◽  
1992 ◽  
Vol 35 (4) ◽  
pp. 699-701 ◽  
Author(s):  
R. H. Gooding ◽  
B. M. Rolseth
Keyword(s):  
Linkage Group ◽  
Linkage Map ◽  
Malate Dehydrogenase ◽  
X Chromosome ◽  
Glossina Morsitans Morsitans ◽  
Glossina Morsitans ◽  
Group Iii ◽  
Intrachromosomal Recombination ◽  
Group I

The locus for phosphoglucomutase (Pgm) was mapped at less than 1.2 recombination units from the locus for arginine phophokinase (Apk) in linkage group I, the X chromosome. Linkage group III loci were mapped in the order sabr (long scutellar apical bristles in females), Mdh (malate dehydrogenase), and Pgi (glucose-6-phosphate isomerase). The loci sabr and Mdh were separated by 39.3 ± 4.6 recombination units, and Mdh and Pgi were separated by 45.5 ± 4.7 recombination units. Intrachromosomal recombination was rare or did not occur in males. Previously published recombination distances are summarized as a linkage map for the 16 loci that have been mapped in Glossina morsitans morsitans.Key words: tsetse, linkage map, phosphoglucomutase, glucose-6-phosphate isomerase.

Genetics of the tsetse fly Glossina morsitans submorsitans Newstead (Diptera: Glossinidae): further mapping of linkage groups I, II, and III

1999 ◽  
Vol 77 (8) ◽  
pp. 1309-1313 ◽  
Author(s):  
R H Gooding ◽  
C M Challoner
Keyword(s):  
Linkage Group ◽  
X Chromosome ◽  
Aldehyde Oxidase ◽  
Female Offspring ◽  
Tsetse Fly ◽  
Glossina Morsitans ◽  
Group Iii ◽  
Glossina Morsitans Submorsitans ◽  
Group I ◽  
Group Ii

Standard mapping procedures were used to map four loci in linkage group I (the X chromosome), two loci in linkage group II, and two loci in linkage group III of Glossina morsitans submorsitans. In the presence of the allele Srd (the distorter allele favoring production of female offspring), no recombination occurred between any of the following loci: Pgm (phosphoglucomutase), wht (white eye color), Est-X (a thoracic esterase), and Sr (sex-ratio distortion). However, in the absence of Srd (i.e., in females homozygous for Srn, the allele that permits males to sire both female and male offspring in approximately equal numbers), the loci Pgm and wht were separated by 23 ± 4.0% recombination (map distance). These results indicate that ourG. m. submorsitans strains carry two forms of the X chromosome, designated XA and XB. In support of this interpretation, two lines of G. m. submorsitans were established: in both lines, males with wild-type eyes sired families that were almost exclusively female, while males with white eyes sired families having males and females in approximately equal numbers. Two loci, Ao (aldehyde oxidase) and Est-1 (a thoracic esterase) were separated by 6.1 ± 2.3% recombination in linkage group II, and two loci, Mdh (malate dehydrogenase) and Pgi (phosphoglucose isomerase), showed 51.9 ± 4.9% recombination in linkage group III.

GENETICS OF GLOSSINA MORSITANS MORSITANS (DIPTERA: GLOSSINIDAE). V. DEFINITION AND PRELIMINARY MAPPING OF LINKAGE GROUPS I AND II

1981 ◽  
Vol 23 (3) ◽  
pp. 399-403 ◽  
Author(s):  
R. H. Gooding
Keyword(s):  
Linkage Group ◽  
X Chromosome ◽  
Aldehyde Oxidase ◽  
Glossina Morsitans Morsitans ◽  
Linkage Groups ◽  
Glossina Morsitans ◽  
Eye Color ◽  
Group I ◽  
Octanol Dehydrogenase ◽  
Differential Part

Linkage group I is defined as the loci on the differential part of the X-chromosome of adult Glossina morsitans morsitans Westwood. Three loci are known and their order on the X-chromosome has been demonstrated as ocra (body color), salmon (eye color), and Apk (arginine phosphokinase, E.C. 2.7.3.3) with 38 map units separating the first two loci and 32 to 41 separating the second two. This region of the X-chromosome does not contain the chromosomal inversion known to occur in the Handeni line of G. m. morsitans. Linkage group II is defined as the autosome carrying the locus Xo (xanthine oxidase, E.C. 1.2.3.2), and it is demonstrated to carry also the loci Ao (aldehyde oxidase, E.C. 1.2.3.1) and Odh (octanol dehydrogenase, E.C. 1.1.1.73). Ao and Odh are within 0.36 map units of each other and have not been separated by recombination; this pair of loci occur about 48 map units from Xo. During mapping experiments, no evidence for genetical recombination was found in male G. m. morsitans.

Genetics of Glossina morsitans morsitans (Diptera: Glossinidae). IX. Definition of linkage group III and further mapping of linkage groups I and II

1984 ◽  
Vol 26 (3) ◽  
pp. 253-257 ◽  
Author(s):  
R. H. Gooding
Keyword(s):  
Linkage Group ◽  
Aldehyde Oxidase ◽  
Glossina Morsitans Morsitans ◽  
Linkage Groups ◽  
Glossina Morsitans ◽  
Malic Dehydrogenase ◽  
Group Iii ◽  
Glycerophosphate Dehydrogenase ◽  
Group I ◽  
The Right

In Glossina morsitans morsitans Westwood, linkage group III is defined as the autosome carrying the locus Mdh (malic dehydrogenase), the only locus so far identified in this linkage group. The locus αGpd.2 (α-glycerophosphate dehydrogenase) was located 45 map units (MU) to the left of Xo (xanthine oxidase) and the loci Est.1 and Est.2 (loci for two esterases found in the thorax) were mapped approximately 5–10 MU to the right of Ao (aldehyde oxidase) in linkage group II. The location of G6pd (glucose-6-phosphate dehydrogenase) has been confirmed to be approximately 37 MU to the left of oc (ocra body color) in linkage group I and it was shown that this region of the X chromosome does not involve the large paracentric inversion found in the Handeni line. A genetic map for 12 loci in the three linkage groups found in G. m. morsitans is presented.Key words: Diptera, Glossina, mapping, inversion, isozymes.

Genetics of Glossina morsitans morsitans (Diptera: Glossinidae). XIII. Mapping the locus for tetrazolium oxidase in linkage group I and refinement of the linkage group II map

Genome ◽  
1988 ◽  
Vol 30 (6) ◽  
pp. 885-887 ◽  
Author(s):  
R. H. Gooding ◽  
B. M. Rolseth ◽  
S. A. Tarimo
Keyword(s):  
Linkage Group ◽  
Key Words ◽  
Aldehyde Oxidase ◽  
Glossina Morsitans Morsitans ◽  
Linkage Maps ◽  
Glossina Morsitans ◽  
Eye Color ◽  
Group I ◽  
Group Ii

The locus for tetrazolium oxidase, To, is mapped at 4.3 ± 1.3 recombination units from the locus for arginine phosphokinase, Apk, in linkage group I, and the distance between the eye color locus, sal, and Apk is confirmed to be about 39.5 ± 3.2 recombination units. In linkage group II the loci for aldehyde oxidase, Ao, and for two esterases are arranged in the order Ao Est-1 Est-2 with 3.5 ± 1.2 recombination units separating Ao and Est-1 and 8.3 ± 1.8 recombination units separating Est-1 and Est-2.Key words: Glossina morsitans, tetrazolium oxidase, aldehyde oxidase, esterases, linkage maps.

scholarly journals The location of Cattanach's translocation in the X-chromosome linkage map of the mouse

1966 ◽  
Vol 8 (2) ◽  
pp. 253-256 ◽  
Author(s):  
B. M. Cattanach
Keyword(s):  
Linkage Group ◽  
Linkage Map ◽  
X Chromosome ◽  
Present Communication ◽  
Group I ◽  
Autosome Translocation

In Cattanach's X-autosome translocation a piece of autosome of linkage group I has been inserted into the X-chromosome and a piece of X may have been reciprocally translocated to the autosome (Cattanach, 1961; Ohno & Cattanach, 1962). The present communication reports investigations to locate the autosomal insertion in the X-chromosome linkage map and provide evidence pertinent to the question of the possible reciprocal nature of the rearrangement; a brief summary of the results has already been reported (Cattanach & Isaacson, 1965).

Involvement of the X chromosome in fertility of male and female hybrids of Glossina morsitans morsitans and Glossina morsitans centralis (Diptera: Glossinidae)

1989 ◽  
Vol 67 (4) ◽  
pp. 869-871 ◽  
Author(s):  
R. H. Gooding
Keyword(s):  
X Chromosome ◽  
Glossina Morsitans Morsitans ◽  
The Other ◽  
Marker Genes ◽  
Glossina Morsitans ◽  
X Chromosomes ◽  
Male And Female ◽  
Intrachromosomal Recombination ◽  
Glossina Morsitans Centralis ◽  
Glucose 6 Phosphate Dehydrogenase

In hybrid females of Glossina morsitans morsitans Westwood and Glossina morsitans centralis Machado that carried four well-separated marker genes, suppression of intrachromosomal recombination occurred between the loci for glucose-6-phosphate dehydrogenase (G6pd) and arginine phosphokinase (Apk) on the X chromosome. Fertility of backcross females was not influenced by whether they mated with G. m. morsitans or G. m. centralis, but it was higher in females that received both of their X chromosomes from G. m. morsitans than it was in females that received one X chromosome from G. m. morsitans and the other from G. m. centralis.

Genetics of Glossina morsitans morsitans (Diptera: Glossinidae). VII. Location of G6pd in linkage group I, and Alkph in linkage group II

1983 ◽  
Vol 25 (1) ◽  
pp. 30-32 ◽  
Author(s):  
R. H. Gooding
Keyword(s):  
Alkaline Phosphatase ◽  
Linkage Group ◽  
Xanthine Oxidase ◽  
Aldehyde Oxidase ◽  
Glossina Morsitans Morsitans ◽  
Body Color ◽  
Glossina Morsitans ◽  
Group I ◽  
Group Ii ◽  
Glucose 6 Phosphate Dehydrogenase

In Glossina morsitans morsitans Westwood the locus for glucose-6-phosphate dehydrogenase, G6pd, was found to be in linkage group I, approximately 35 to 42 map units to the left of ocra, the locus for body color. The locus for midgut alkaline phosphatase, Alkph, was found to be in linkage group II, within 0.41 map units of the locus for xanthine oxidase, Xo. The distance from Xo to the locus for aldehyde oxidase, Ao, was confirmed to be about 42 map units. No evidence for genetical recombination was found in male G. m. morsitans.

Genetic basis of sterility in hybrids from crosses of Glossina morsitans submorsitans and Glossina morsitans morsitans (Diptera: Glossinidae)

Genome ◽  
1989 ◽  
Vol 32 (3) ◽  
pp. 479-485 ◽  
Author(s):  
R. H. Gooding
Keyword(s):  
Linkage Group ◽  
X Chromosome ◽  
Hybrid Sterility ◽  
Glossina Morsitans Morsitans ◽  
Marker Genes ◽  
Glossina Morsitans ◽  
Hybrid Male ◽  
X Chromosomes ◽  
Glossina Morsitans Submorsitans ◽  
Group Ii

Glossina morsitans submorsitans Newstead and Glossina morsitans morsitans Westwood carrying two marker genes on the X chromosome, two in linkage group II, and one in linkage group III were hybridized. About 17% of the F1 and from 33 to 56% of the backcross males fertilized G. m. submorsitans, but only one F1 and two backcross males fertilized G. m. morsitans. Similarly, F1 and backcross females were fertilized by G. m. submorsitans but rarely by G. m. morsitans. Chromosomal composition of F1 and backcross males indicated that hybrid male sterility is due to incompatibility of the X chromosome from one subspecies and the Y from the other subspecies or possibly an incompatibility between X chromosomes and autosomes from different subspecies. Results are discussed in the context of a model for evolution of X and Y incompatibility and a model for evolution of maternally inherited factors that cause unidirectional sterility in males. In hybrid females, intrachromosomal recombination was suppressed in the X chromosome and in linkage group II. Fertility of backcross females, mated to G. m. submorsitans, could not be related to the chromosomal composition of the females.Key words: Glossina, hybrid sterility, tsetse, X chromosomes.

Genetics of Glossina morsitans morsitans (Diptera: Glossinidae). X. A mutant (sabr) having long scutellar apical bristles in females

1984 ◽  
Vol 26 (6) ◽  
pp. 770-775 ◽  
Author(s):  
R. H. Gooding
Keyword(s):  
Linkage Group ◽  
Mutant Allele ◽  
Glossina Morsitans Morsitans ◽  
Wild Type Allele ◽  
Wild Type ◽  
Glossina Morsitans ◽  
Malic Dehydrogenase ◽  
Group Iii ◽  
Type Allele

A line of Glossina morsitans morsitans Westwood was established in which females have scutellar apical bristles approximately three times as long as normal. In other respects the flies appear normal. The mutant allele, sabr, is recessive to the wild-type allele. The locus for sabr is located in linkage group III, 50 or more map units from the locus for malic dehydrogenase. Scutellar apical bristles in mutant flies are longer in flies emerging from puparia maintained at 30 °C than in flies emerging from puparia maintained at 25 °C.Key words: Glossina, mutation sabr, bristle length.

DOMINANT-AND-RECESSIVE EPISTASIS IN A HOMEOTIC MOSQUITO MUTANT

1976 ◽  
Vol 18 (4) ◽  
pp. 593-600
Author(s):  
Satish C. Bhalla
Keyword(s):  
Linkage Group ◽  
Wild Type ◽  
Pure Strain ◽  
Group Iii ◽  
Homeotic Mutant ◽  
Culex Pipiens Fatigans ◽  
Group I ◽  
Ratio Data ◽  
Independent Segregation ◽  
Selection For

Folowing selection for 15 generations a pure strain of a homeotic mutant spur was isolated from a Brazilian population of the mosquito Culex pipiens fatigans. Monohybrid crosses showed a 13:3 segregation indicating dominant-and-recessive epistasis for wild-type vs. spur. This implies that a dominant allele at one locus and a recessive at the other interact to produce the mutant phenotype. Dihybrid crosses with linkage group II markers yellow and ruby gave 39:13:9:3 ratios indicating independent segregation. However, the dihybrid cross with linkage group I marker maroon showed a highly significant departure from 39:13:9:3 ratio. Data available indicate that the phenotype spur is controlled by a dominant epistat in linkage group III and a recessive epistat (approximately 31.9 crossover units from maroon) in linkage group I.

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