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J B KITZMILLER

Publications and source records attributed to J B KITZMILLER.

14 recordsLinked to original sources
PubMed1965

THE SALIVARY GLAND CHROMOSOMES OF ANOPHELES OCCIDENTALIS.

Increasing emphasis is being placed on the study of the genetics of insect vectors of disease, and, although Anopheles occidentalis is not itself a malaria vector, study of its salivary gland chromosomes is important as part of investigations into the phylogenetic and evolutionary relationships of anophelines, especially in view of this species' close morphological similarity to other members of the A. maculipennis complex.The authors of this paper provide a map of the salivary chromosomes of A. occidentalis, and discuss the many points of resemblance of those chromosomes to those of A. freeborni in particular. However, they point out that at least ten different paracentric inversions must be postulated to derive the A. occidentalis chromosomes from those of A. freeborni.

Animals↗
PubMed1963

[DEGENERATES].

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Adolescent↗
PubMed1963

MOSQUITO CYTOGENETICS. A REVIEW OF THE LITERATURE, 1953-62.

Although an intensified interest in mosquito cytogenetics in the past decade has produced a number of contributions to knowledge on this subject, the available information is still superficial and limited to a few mosquito species only. The author of this review summarizes the research done in this field between 1953 and 1962.The following are some of the achievements and some of the gaps that remain to be filled. Karyotypes of several species of Anopheles, Aedes and Culex conform to the general pattern 2n=6, with heterosomes distinguishable only in Anopheles. At least three different karyotypes are present in Anopheles. Salivary gland chromosome maps are now available for several anopheline species, but are still lacking for Culex and Aedes. No precise correlation may yet be made between the frequency of chromosomal aberrations and the degree of insecticide-resistance. Sexual differences in the salivary X-chromosomes have been reported for several species of Anopheles. Chromosomal polymorphism is common in some anophelines, but rare in others. Chromosomal mutation has been induced by means of X-rays.In his conclusions, the author stresses that prospects are especially good for evolutionary and genetic studies involving chromosomal polymorphism.

Aedes↗