The late sexual maturity in sturgeon and the absence of morphological differences between males and females makes sex discrimination difficult. Identification of sex at an early life stage is of high interest in caviar production because it allows efficient selection of females. In this study, the genome of 10 mature male and 10 mature female specimens of Persian sturgeon (Acipenser persicus...

Correction for “Genetic inactivation of AKT1, AKT2, and PDPK1 in human colorectal cancer cells clarifies their roles in tumor growth regulation,” by Kajsa Ericson, Christine Gan, Ian Cheong, Carlo Rago, Yardena Samuels, Victor E. Velculescu, Kenneth W. Kinzler, David L. Huso, Bert Vogelstein, and Nickolas Papadopoulos, which appeared in issue 6, February 9, 2010, of Proc Natl Acad Sci USA (107:...

To study the effect of Ca/P ratio on P and Ca absorption excretion in hybrid sturgeon (Huso dauricus♀ X Acipenser schrenckii♂), five groups fish were intubated with 100 mg P·kg−1 BW ratios 0:1, 0.25:1, 0.5:1, 1:1, 2:1. Plasma concentrations significantly elevated at below 2:1, highest value was obtained 0.5:1. content increased ratio. Urine rate 0.5:1 higher than that 0:1 The urea rates observe...

Histological examination of thymi from juvenile Acipenser ruthenus and Acipenser brevirostrum after haematoxylin and eosin staining revealed the presence of Hassall’s corpuscles, in a scattered distribution within the thymic medulla in two of seven, and one of nine examined specimens, respectively. Morphologically, the Hassall’s corpuscles were of the juvenile and premature type and no degenera...