Relation of Sperm Morphology to Genotypically Controlled Variations in Fertility

Rajasekarasetty, M. R.

doi:10.3181/00379727-78-19238

Cited by 6 publications

(3 citation statements)

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“…In the mouse the closest parallel that can be found is the sterility of t"^1 males (Dunn, 1937). Spermatozoa are produced, but many of them are morphologically abnormal in various ways, including irregularly shaped heads with refractive areas (Bryson, 1944;Rajasekarasetty, 1951). Males of different genotype produced the same kind of abnormalities (but in different proportions) as a result of adverse environmental conditions, so it may be as Bryson suggests that the action of f and t 1 is not localized in the gonads but is a general somatic effect.…”

Section: L2mentioning

confidence: 99%

Evidence of gene-controlled sterility in bulls

Donald

Hancock

1953

J. Agric. Sci.

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Section: L2mentioning

confidence: 99%

Evidence of gene-controlled sterility in bulls

Donald

Hancock

1953

J. Agric. Sci.

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“…PAS staining also reveals differel,ces that are not apparent, using other methods, in the sperm of strains of r lice with mutation-induced changes in one of the chromosomes, though t le strain differences in fertility cannot be correlated with the morphologica! appear ances (150). Other studies describe the histochemical localization of minerals, enzymes, lipids, polysaccharides, and proteins in mammalian spe rm (151,152,153), and methods to distinguish between living and dead sp' ,rm (154,155).…”

Section: Reproduction In the Malementioning

confidence: 95%

Reproduction

Krohn¹,

Zuckerman²

1953

Annu. Rev. Physiol.

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In 1910, the late Dr. F. H. A. Marshall published the first edition of his Physiology of Reproduction. It represented the first attempt to assemble in the English language the knowledge that was available about the subject of reproduction. A second edition appeared in 1922, but unfortunately missed the very rapid expansion of the subject, especially on the endocrinological side, which took place during the 1920's. A third edition of Marshall's classic, of which one volume has now been published under the editorship of Parkes, again brings the subject up to date, and in the same encyclopaedic form first attempted by Marshall himself.The volume that has appeared (Vol. II) corresponds to the second half of the single volumes of the first and second editions (1). Its chapters deal with the history of the fertilized ovum, cleavage and implantation, placentation, foetal and maternal physiology, parturition, lactation and fertility, and show up, very clearly, the areas in which most progress in knowledge has been made in the past 30 years.Since 1922, we have been provided with detailed knowledge about the chemistry and cytological nature of the ova of different species. Develop ments in microscopy and in methods of tissue culture have made possible the direct study of cleavage in many mammalian species. Another achieve ment of the past 30 years is an understanding of the transport of sperm and ova, and of the factors concerned in the spacing of blastocysts, matters which, in the second edition of Marshall's book, could be dealt with in very few words, in spite of the fact that artificial insemination of farm animals was already being practised. On the other hand, the precise roles of blasto cyst and endometrium in the process of implantation are as uncertain to day as they were 30 years ago, even though the actual facts of implantation may be very much better understood, not only in nonprimate mammals but also in monkeys and man. We owe this advance mainly to the fact that it has become possible to obtain for study material that can be timed in rela tion to the ovarian and uterine cycles.The 1910 chapter on "Foetal Nutrition and the Physiology of the Pla centa" was reprinted almost unchanged in 1922, Marshall noting at the time that little new on this subject had appeared in the preceding decade. Infor mation about the macro-and microscopic structure of the placenta is now 1 The survey of the literature pertaining to this review was completed in June, 1952. I The following abbreviations are used in this chapter: DCA (desoxycorticosterone acetate); PAS (periodic acid-Schiff); LH (luteinizing hormone); CG (chorionic gonadotrophia); FSH (follicle stimulating hormone) : PMS (pregnant mare serum): ACTn (adrenocorticotrophin).429 Annu. Rev. Physiol. 1953.15:429-456. Downloaded from www.annualreviews.org Access provided by University of California -San Francisco UCSF on 02/08/15. For personal use only. Quick links to online content Further ANNUAL REVIEWS

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“…The immediate questions concern the identification and classification of those genotypes which are associated with quasi-sterility, and the definition and genetic analysis of this phenomenon. Rajasekarasetty (1951) also failed to find a correlation between the propor¬ tion of abnormal spermatozoa and the degree of sterility in quasi-sterile males with a lethal and a viable Z-allele and presumed that the normal spermatozoa, which were in the great majority, were 'physiologically inefficient'. Most males of these genotypes proved to be mating-sterile (see below for definitions).…”

Section: Introductionmentioning

confidence: 99%

STUDIES OF EFFECTS OF t-ALLELES IN THE HOUSE MOUSE ON SPERMATOZOA

Dunn¹,

Bennett²

1969

Reproduction

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Mating tests of males bearing different combinations of alleles near locus T show fertility differences from near sterile to near normal fertility depending on the specific alleles combined. Viable t-alleles with no marked effects on fertility when homozygous, fall into different fertility categories when each is combined with the same lethal allele. The differences are attributed to effects on sperm function exerted by the properties of an important controlling centre in the ninth linkage group.

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Relation of Sperm Morphology to Genotypically Controlled Variations in Fertility

Cited by 6 publications

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Evidence of gene-controlled sterility in bulls

Evidence of gene-controlled sterility in bulls

Reproduction

STUDIES OF EFFECTS OF t-ALLELES IN THE HOUSE MOUSE ON SPERMATOZOA

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