A genetic marker is a gene or DNA sequence with known localization on a chromosome. It can be de-scribed as a variation that can be measured or detected by a suitable method, and can be used subsequently to detect the presence of a specific genotype. Such variations occurring at chromosomal or DNA level can serve as genetic markers. The progress in development of molecular markers suggests thei...

Some reproductive failure occurs in all swine breeding operations, but for practical purposes reproductive failure is regarded significant only when production levels fall below the expected norm. These norms may vary from operation to operation and are based on such things as percentage of animals cycling, conception and farrowing rates, average litter size and number of pigs produced per sow ...

quantitative valuations of observed heterosis for 11 traits of 15 f1 hybrids generated by half diallel crosses of six diverse rice cultivars (domsefid, hashemi and binam, three iranian local cultivars; dorfak, kadous and ir30, three improved cultivars), were made in this study. fifteen f1 hybrids and their parents were evaluated in a randomized complete block design with three replications at t...

Animals signal their reproductive status in a range of sensory modalities. Highly social animals, such as primates, have access not only to such signals, but also to prior experience of other group members. Whether this experience affects how animals interpret reproductive signals is unknown. Here, we explore whether familiarity with a specific female affects a male's ability to assess that fem...

Familial Mediterranean fever (FMF), amyloidosis, and colchicine may affect the reproductive system of male and female patients. Colchicine treatment improves female fertility and the outcome of pregnancy and may prevent the development of amyloidosis. However, colchicine may induce oligospermia/azoospermia, but this effect is rare. Overall, colchicine treatment improves the prognosis of patient...

In the United States, almost 120,000 females under the age of 50 years are diagnosed with cancer annually [ 1 ] . Retaining reproductive potential is extremely important to those diagnosed with cancer, and reproductive compromise can cause distress well into survivorship [ 2, 3 ] . Despite this, patients often do not recall discussions at diagnosis regarding fertility and options for fertility ...