Assignment of 6-phosphogluconate dehydrogenase and glucose oxidase to chromosome 2 of Anopheles albimanus

1983 ◽  
Vol 25 (6) ◽  
pp. 567-572 ◽  
Author(s):  
S. Narang ◽  
J. A. Seawright ◽  
T. K. Mukiama ◽  
N. L. Willis
Keyword(s):  
Glucose Oxidase ◽  
Linkage Map ◽  
Chromosome 2 ◽  
Anopheles Albimanus ◽  
Phosphogluconate Dehydrogenase ◽  
Red Eye ◽  
Current Sequence ◽  
The Right ◽  
Map Distance

As a part of a comprehensive, continuous effort to define a linkage map for Anopheles albimanus Wiedemann, 6-phosphogluconate dehydrogenase (6-Pgd) and glucose oxidase (Go) were assigned to the right arm of chromosome 2. Male-linked translocations and mutant markers were used to establish the map distance and the current sequence of loci on chromosome 2 as follows: brown larva (bw) – ? – ebony (eb) – ? – centromere – ? – T(Y;2R)3 – 17 – Go – 6(?) – bald palpi (bp) – 10 – green larva (gl) – 7 – propoxur resistance (prr) – 2 – red eye (re) – 21 – 6-Pgd.

Towards a Genetic Map for Anopheles albimanus: Identification of Microsatellite Markers and a Preliminary Linkage Map for Chromosome 2

2009 ◽  
Vol 81 (6) ◽  
pp. 1007-1012 ◽  
Author(s):  
R. Patricia Penilla ◽  
John C. Morgan ◽  
Hilary Ranson ◽  
Norma Padilla ◽  
William G. Brogdon ◽  
...  
Keyword(s):  
Microsatellite Markers ◽  
Linkage Map ◽  
Genetic Map ◽  
Chromosome 2 ◽  
Anopheles Albimanus

Assignment of glutamate oxaloacetate transaminase to chromosome 2 and alcohol dehydrogenase to chromosome 3 of Anopheles albimanus

1984 ◽  
Vol 26 (5) ◽  
pp. 590-594 ◽  
Author(s):  
S. Narang ◽  
J. A. Seawright ◽  
N. L. Willis
Keyword(s):  
Linkage Group ◽  
Alcohol Dehydrogenase ◽  
Genetic Map ◽  
Chromosome 3 ◽  
Chromosome 2 ◽  
Anopheles Albimanus ◽  
Glutamate Oxaloacetate Transaminase ◽  
Enzyme Loci ◽  
Dehydrogenase Isozyme ◽  
The Right

The inheritance and linkage group assignments were determined for the two enzyme loci, glutamate oxaloacetate transaminase (Got-I) and alcohol dehydrogenase (Adh-I). of Anopheles albimanus Weidemann. Got-I was assigned to the proximal position on the genetic map of the right arm of chromosome 2, and Adh-I was mapped at the distal position on the map of the right arm of chromosome 3. Gene sequences and linkage estimates are now available for 23 mutant and enzyme loci in A. albimanus.Key words: glutamate oxaloacetate transaminase, alcohol dehydrogenase, isozyme, Anopheles albimanus, genetic map.

scholarly journals A NOTE ON THE MATERNAL EFFECT MUTANTS DAUGHTERLESS AND ABNORMAL OOCYTE IN DROSOPHILA MELANOGASTER

Genetics ◽  
1973 ◽  
Vol 73 (1) ◽  
pp. 73-86
Author(s):  
Arthur P Mange ◽  
L Sandler
Keyword(s):  
Drosophila Melanogaster ◽  
Maternal Effect ◽  
Sex Chromosome ◽  
Chromosome 2 ◽  
Dominant Marker ◽  
Enhancing Effect ◽  
X Irradiation ◽  
The Right ◽  
Chromosome Breakpoint ◽  
Special Region

ABSTRACT Two deficiencies for, and a dominant enhancer of, the second chromosome maternal effect mutant, "daughterless" (da), were induced with X-irradiation. Their properties were studied with respect to both da and the linked maternal effect mutant, "abnormal oocyte" (abo), with the following conclusions. (1) The most probable map positions of da and abo are: J–½–da–2½–abo, where J is a dominant marker located at 41 on the standard map. (2) The da locus is in bands 31CD-F on the polytene chromosome map; abo is to the right of 32A. (3) Because homozygous da individuals survive while individuals carrying da and a deficiency for da are lethal, it is concluded that da is hypomorphic. (4) From a weak da-like maternal effect in heterozygous da females induced by an "Enhancer of da," we have confirmed a previous report that (a) the amount of sex chromosome heterochromatin contributed by the father can influence the severity of the da maternal effect, and (b) the sex chromosome heterochromatin which influences the da effect is different from that which influences the abo effect. (5) The possibility that da and abo are in a special region of chromosome 2 concerned with the regulation of sex chromosome heterochromatin is strengthened by the observation that the Enhancer of da appears to rescue abnormal eggs produced by homozygous abo mothers. (6) The Enhancer of da is a translocation between chromosomes 2 and 3 with the second chromosome breakpoint in the basal heterochromatin; because the enhancing effect maps in this region of chromosome 2, it is possible that autosomal, as well as sex chromosomal, heterochromatin interacts with da and abo.

SOME EFFECTS ON FRUIT SIZE OF CHROMOSOME 2 OF THE TOMATO

1965 ◽  
Vol 43 (1) ◽  
pp. 137-146
Author(s):  
L. Butler
Keyword(s):  
Linkage Map ◽  
Fruit Size ◽  
Cell Number ◽  
Major Effect ◽  
Fruit Weight ◽  
Pleiotropic Effects ◽  
Chromosome 2 ◽  
Small Fruit ◽  
Number Of Cells

Fruit weights taken from two F2's of 1500 plants indicated that the genes d p o s Lc dil and suf all affect fruit weight. The recessive alleles, except suf and Lc, were associated with small fruit size. The data were analyzed to determine whether this association was the result of linkage or pleiotropic effects. The major effect occurred in the o region, which is some 44 units from the centromere of chromosome 2. The o gene makes the genes oval or pear-shaped instead of spherical, and it is shown that when the locule wall of a spherical fruit and an oval fruit are composed of the same number of cells, the spherical fruit is always heavier. Since cell number is the inherited unit of fruit size, then o is always associated with small size. A gene controlling number of locules, which affects fruit size, is also located in this section of the chromosome. The genes d and s, which are at opposite ends of the present linkage map, both appear to be linked with fruit size genes. It is suggested that these size genes lie in the hetero-chromatin which is adjacent to both ends of the linkage map. The genes dil and suf, which were produced by radiation of the same variety, appear to have pleiotropic effects on fruit size; suf increasing, and dil decreasing fruit size.

Chromosome polymorphism in natural populations of Anopheles quadrimaculatus Say species A and B

Genome ◽  
1988 ◽  
Vol 30 (2) ◽  
pp. 138-146 ◽  
Author(s):  
P. E. Kaiser ◽  
J. A. Seawright ◽  
B. K. Birky
Keyword(s):  
X Chromosome ◽  
Southeastern United States ◽  
Polytene Chromosomes ◽  
Natural Populations ◽  
Chromosome 3 ◽  
Chromosome Polymorphism ◽  
Chromosome 2 ◽  
Anopheles Quadrimaculatus ◽  
The Right ◽  
Maculipennis Complex

Ovarian polytene chromosomes from eight populations of Anopheles quadrimaculatus in the southeastern United States were observed for chromosomal polymorphisms. Two sibling species, species A and B, each with intraspecific inversions, were distinguished. Species A correlates with the previously published standard maps for salivary gland and ovarian nurse-cell polytene chromosomes. Species A was found at all eight collection sites, and five of these populations also contained species B. Three inversions on the right arm of chromosome 3 were observed in species A. Species B contained a fixed inversion on the X chromosome, one fixed and one floating inversion on the left arm of chromosome 2, and one fixed and one floating inversion on the right arm of chromosome 3. The fixed inversion on the X chromosome makes this the best diagnostic chromosome for distinguishing species A and B. An unusual dimorphism in the left arm of chromosome 3, found in both species A and B, contained two inversions. The heterokaryotypes, as well as two distinct homokaryotypes, were seen in all of the field populations. Intraspecific clinal variations in the frequencies of the species A inversions were noted. The Florida populations were practically devoid of inversions, the Georgia and Alabama populations contained some inversions, and the Arkansas population was mostly homozygous for two of the inversions. The phylogenetic relationships of species A and B to the Maculipennis complex (Nearctic) are discussed.Key words: Anopheles, inversion, populations, chromosome polymorphism, phylogenetics.

The CEPH consortium linkage map of human chromosome 2

Genomics ◽  
1992 ◽  
Vol 14 (4) ◽  
pp. 1055-1063 ◽  
Author(s):  
Nigel K. Spurr ◽  
Simon Cox ◽  
Stephen P. Bryant ◽  
John Attwood ◽  
Elizabeth B. Robson ◽  
...  
Keyword(s):  
Human Chromosome ◽  
Linkage Map ◽  
Chromosome 2

Two genetic linkage maps of mungbean using RFLP and RAPD markers

2000 ◽  
Vol 51 (4) ◽  
pp. 415 ◽  
Author(s):  
C. J. Lambrides ◽  
R. J. Lawn ◽  
I. D. Godwin ◽  
J. Manners ◽  
B. C. Imrie
Keyword(s):  
Linkage Map ◽  
Segregation Distortion ◽  
Recombinant Inbred ◽  
Genetic Linkage ◽  
Rapd Markers ◽  
Rflp Markers ◽  
Linkage Maps ◽  
Linkage Groups ◽  
Genetic Linkage Maps ◽  
Map Distance

Two genetic linkage maps of mungbean derived from the cross Berken ACC 41 are reported. The F2 map constructed from 67 individuals consisted of 110 markers (52 RFLP and 56 RAPD) that grouped into 12 linkage groups. The linked markers spanned a total map distance of 758.3 cM. A recombinant inbred (RI) population derived from the 67 F2 individuals was used for the generation of an additional linkage map. The RI map, composed entirely of RAPD markers, consisted of 115 markers in 12 linkage groups. The linked markers spanned a total map distance of 691.7 cM. Using a framework set of RFLP markers, the F2 map was compared with another F2 mungbean map constructed in Minnesota. In general, the order of these markers was consistent between maps. Segregation distortion was observed for some markers. 14.5% (16/110) of mapped F2 markers and 24% (28/115) of mapped RI markers segregated with distorted ratios. Segregation distortion occurred in each successive generation after the F2 . The regions of distortion identified in the Australian maps did not coincide with regions of the Minnesota map.

Refinement of bovine chromosome 2 linkage map near the mh locus reveals rearrangements between the bovine and human genomes

1998 ◽  
Vol 29 (5) ◽  
pp. 341-347 ◽  
Author(s):  
T. S. Sonstegard ◽  
S. M. Kappes ◽  
J. W. Keele ◽  
T. P. L. Smith
Keyword(s):  
Linkage Map ◽  
Bovine Chromosome ◽  
Chromosome 2 ◽  
Human Genomes

scholarly journals Mapping an invisible lethal in the mouse

1976 ◽  
Vol 27 (1) ◽  
pp. 3-10
Author(s):  
Margaret E. Wallace
Keyword(s):  
Chromosome 2 ◽  
Wild Mice ◽  
Map Distance

SUMMARYAn effective breeding policy is described for detecting linkage in the mouse, for an ante-natal lethal from crosses of heterozygotes with stocks homozygous for several linked recessive markers. A method of analysing the ensuing data is described, together with a method of estimating the map distance to close markers. A practical illustration is described, involving an ante-natal lethal obtained from a colony of wild mice and a four fold recessive chromosome 2 marker stock.

A molecular genetic linkage map of mouse chromosome 2

Genomics ◽  
1990 ◽  
Vol 6 (3) ◽  
pp. 491-504 ◽  
Author(s):  
Linda D. Siracusa ◽  
Colleen M. Silan ◽  
Monica J. Justice ◽  
John A. Mercer ◽  
Asne R. Bauskin ◽  
...  
Keyword(s):  
Linkage Map ◽  
Mouse Chromosome ◽  
Genetic Linkage ◽  
Genetic Linkage Map ◽  
Molecular Genetic ◽  
Chromosome 2 ◽  
Mouse Chromosome 2
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