LINKAGE STUDIES IN TRIBOLIUM CASTANEUM HERBST. III. A PRELIMINARY REPORT ON "TRUNCATED ELYTRA," A SEX-LINKED RECESSIVE GENE WITH LETHAL EFFECTS

1960 ◽  
Vol 2 (4) ◽  
pp. 379-388 ◽  
Author(s):  
Alexander Sokoloff
Keyword(s):  
Tribolium Castaneum ◽  
Preliminary Report ◽  
Recessive Gene ◽  
Linkage Studies ◽  
Lethal Effects

LINKAGE STUDIES IN TRIBOLIUM CASTANEUM. XI. THE MAP POSITION OF CHARCOAL, A PSEUDOALLELE OF BLACK

1978 ◽  
Vol 20 (1) ◽  
pp. 139-145 ◽  
Author(s):  
Eric Brown ◽  
Alexander Sokoloff
Keyword(s):  
Linkage Group ◽  
Tribolium Castaneum ◽  
Reciprocal Cross ◽  
Autosomal Dominant ◽  
Linkage Studies ◽  
Lethal Effects ◽  
Recessive Lethal ◽  
Reciprocal Crosses ◽  
Group Iii ◽  
Significant Difference

Charcoal, (Chr), an autosomal dominant with recessive lethal effects is located in linkage group III in Tribolium castaneum (Herbst). Its map position has been determined in respect to aureate (au), light ocular diaphragm (lod) and black (b). The distances between the various genes vary, depending on the sex of the cross. The Chr ++/+ lod au ♂ × +lod au/+lod au ♀ crosses give the following recombination values: au-lod = 22.19 ±.42%, Chr-lod = 20.03 ±.40% and Chr-au = 41.28 ±.49%. The reciprocal crosses give au-lod 28.08 ±.45%, Chr-lod = 17.67 ±.38% and Chr-au = 44.11 ±.50%. For the larger distances encompassed by the Chr-au region the recombination values in the two sexes were not significantly different. For the shorter distances the recombination values were significantly higher in the males than in the females in the au-lod region. They were not found to be significantly different in the Chr-lod region probably because of difficulty in identifying lod and non-lod beetles in the presence of Chr. Tests of allelism indicate that Chr and black b are pseudoalleles which recombine at a different rate in the two sexes. Chr +/+b ♂ × +b/+b ♀ gave 0.07% recombinants, while the reciprocal cross gave 0.014% recombinants, a significant difference. The data suggest that the order of the genes in this linkage group is Chr - b - lod - au.

"Paddle": A Sex-Linked, Recessive Gene of Tribolium castaneum Herbst

1951 ◽  
Vol 85 (824) ◽  
pp. 313-318 ◽  
Author(s):  
Thomas Park ◽  
Marian Burton Frank
Keyword(s):  
Tribolium Castaneum ◽  
Recessive Gene

scholarly journals Effect of Gamma Radiation on Growth and Development of Rust Red Flour Beetle Tribolium Castaneum (Herbst.)

2009 ◽  
Vol 49 (3) ◽  
pp. 280-282 ◽  
Author(s):  
Shishir Tandon ◽  
Anuradha Singh ◽  
Sudha Kanaujia
Keyword(s):  
Gamma Radiation ◽  
Tribolium Castaneum ◽  
Growth And Development ◽  
Developmental Period ◽  
Red Flour Beetle ◽  
Radiation Doses ◽  
Lethal Effects ◽  
Pupal Period ◽  
Flour Beetle

Effect of Gamma Radiation on Growth and Development of Rust Red Flour BeetleTribolium Castaneum(Herbst.)Study on the sterilizing and lethal effects of Cobalt-60 gamma radiation on the larval and adult stages of rust red flour beetleTribolium castaneum(Herbst.) was done at 0, 10, 30, 50, 70, 100, 150, 300 and 500 gray (Gy). Irradiation severely affected pupal period, pupal formation and survivability of larvae and adults. The developmental period of the pest was found to increase along with the increase in the radiation doses. The irradiation at 70 Gy was found to cause complete sterility in the insect.

Linkage studies in Tribolium castaneum (Herbst). XII. A revision of linkage group II

Genome ◽  
1987 ◽  
Vol 29 (1) ◽  
pp. 26-33 ◽  
Author(s):  
Alexander Sokoloff ◽  
Robert F. Ferrone ◽  
John D. Chaney ◽  
Jerry Braden ◽  
Ricardo J. Muñoz
Keyword(s):  
Linkage Group ◽  
Gamma Irradiation ◽  
Tribolium Castaneum ◽  
Gene Clusters ◽  
Linkage Studies ◽  
Eye Color ◽  
Y Chromosomes ◽  
Group Ii ◽  
Linkage Relationships ◽  
Number Of Segments

Data are presented to show the linkage relationships of a number of genes in linkage group II of Tribolium castaneum and a revised map of this linkage group is presented bearing eight well-established points. Some of these points were establishable with the aid of an accidental inversion induced by gamma irradiation. Five additional mutants are also in this linkage group as a result of the revision, but their relative position needs to be established through additional linkage studies. The linkage map suggests the presence of two gene clusters, one affecting the eye color and morphology and the other including homeotic mutants that affect the morphology of the maxillary and labial palps, the thorax, and the abdominal sternites. Data are presented to show that the frequency of recombination for a number of segments in linkage group II is not equal in the two sexes. The literature bearing on the evolution of the karyotype in Tribolium is reviewed, and it is concluded, on the basis of the present evidence, that it is linkage group II and not linkage group IX that became translocated to the X and Y chromosome in a T. castaneum like ancestor to produce the much larger neo-X and neo-Y chromosomes of T. confusum. Key words: Tribolium, linkage, gamma irradiation.

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