The efficiency of marker-assisted selection (MAS) depends on the power of quantitative trait locus (QTL) detection and unbiased estimation of QTL effects. Two independent samples N = 344 and 107 of F2 plants were genotyped for 89 RFLP markers. For each sample, testcross (TC) progenies of the corresponding F3 lines with two testers were evaluated in four environments. QTL for grain yield and oth...

ATA presented in the preceding article (BRINK and BLACKWOOD 1961) D demonstrate that the effect of R' on aleurone color in maize is enhanced when the factor is carried by, or passed through, either of two reciprocal translocations, T2-10a and T4-lob, involving breaks in the long arm of chromosome 10 proximal to, but well removed from, the R locus. The change in phenotype is from darkly mottled ...

This study reports for the first time the production of chicken germline chimeras by transfer of embryonic germ (EG) cells into recipient embryos of different strain. EG cells were established by the subculture of gonadal tissue cells retrieved from stage 28 White Leghorn (WL) embryos with I/I gene. During primary culture (P(0)), gonadal primordial germ cells (gPGCs) in the stromal cells began ...