Johnson and Neaves revealed age-related differences between 2- and 20-year-old stallions in the Leydig cell population. For normal and efficient regulation of spermatogenesis, dead spermatogonia and residual bodies are degraded and phagocytosed by Sertoli cells through a phospholipid phosphatidylserine (PS)-dependent pathway .
Although the differences in morphology between mouse SSPCs and differentiating spermatogonia are subtle, they diverge in pattern of gene expression. Therefore separation of these two populations by surface antigen expression (such as KIT, only present in the latter) followed by flow cytometry is highly efficient (Shinohara et al. 1999 ; Kubota
Spermiogenesis: 1. It is he process of transformation of haploid spermatids into spermatozoa (sperms). 2. It involves only differentiation phase, therefore, it is a part of spermatogenesis. 3. One spermatid develops into one spermatozooon (sperm). Tags Spermatogenesis and Spermiogenesis Spermatogenesis vs Spermiogenesis.
Spermatogenesis is a complex process regulated by a multitude of genes. The identification and characterization of male-germ-cell-specific genes is crucial to understanding the mechanisms through which the cells develop. The term "TEX gene" was coined by Wang et al. (Nat Genet. 2001; 27: 422-6) after they used cDNA suppression subtractive hybridization (SSH) to identify new transcripts
Difference between spermatogenesis and oogenesis. Spermatogenesis. Oogenesis. Process in which sperms are formed from spermatogonia. Ovum is produced from oogonia. Occurs in male testis. Occurs in female ovaries. The release of sperm takes place in million daily. One ovum is released in one monthly cycle.
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difference between spermatogenesis and spermatogonia
