The typical male contains paired testes that produce vast numbers of slender active sperm; these are stored in enlargements of the tubes leading posteriorly from the testes.
Results indicated that ergot alkaloids can induce constriction of blood flow to the testes that may adversely affect bull fertility.
But the spermatogonia — the immature stem cells in the testes that replenish sperm — are constantly dividing and replicating, with each round of division creating another possibility for error.
We also estimated the fraction of the testes that was actually shielded (percent coverage) by visual inspection of the radiographs.
The scientists noted that there had been six studies involving three species of frogs that show a variety of defects, including frogs with both multiple testes and multiple ovaries, when exposed to the chemical.
In later-generation heterozygotes, we observed a decrease in tissue renewal capacity in the bone marrow, intestines, and testes that resembled defects seen in dyskeratosis congenita patients.
When multiple testes were performed, however, only values below 0.0001 were considered significant.
We observed complex metabolic abnormalities in GPRC6A−/− mice involving multiple organ systems that express GPRC6A, including bone, kidney, testes, and liver.
Statistical analysis by Kruskal-Wallis and Dunn's Multiple Comparisons tests demonstrated that expression in the precocious testes was significantly different from that in the non-precocious testes for all genes (P < 0.001; beta-globin beta P < 0.01) as it was also for July v November maturing adults.
This resulted in the creation of 9553 and 13,275 isotigs (sequences built from multiple reads that are analogous to individual transcripts) as well as 16,554 and 20,037 singletons (single read sequences) for the ovaries and testes, respectively (Table 1).
