The main objective of this study was to verify the association between the coefficient of parentage estimates and multivariate techniques which were used as measures of genetic diversity in cultivars. Thirty cotton cultivars were used for this purpose among which genetic diversity was estimated by means of the parentage coefficient (CP) and also through multivariate techniques employing microsa...

A new method for typing single nucleotide polymorphisms in DNA is described. In this method, specific fragments of genomic DNA containing the polymorphic site(s) are first amplified by the polymerase chain reaction (PCR) using one regular and one phosphorothioate-modified primer. The double-stranded PCR product is rendered single-stranded by treatment with the enzyme T7 gene 6 exonuclease, and ...

Singlet electronic excitations of DNA duplex trimers and tetramers with regular homogeneous base-pair sequences ((dA)n.(dT)n and (dG)n.(dC)n, with n=3, 4) have been investigated in vacuo using semiempirical quantum chemistry in a Zerner's Intermediate Neglect of Differential Overlap (ZINDO) approximation. Frequencies, oscillator strengths, and single-electron assignments of many-electron transi...

PARENTE is a user-friendly software package that conducts parentage inference using molecular data from diploid codominant markers. Based on the principle of genetic compatibility, PARENTE looks for maternity, paternity, or simultaneously for both potential parents, using multilocus genotypes and birth and death dates of individuals (if available). It also calculates the probability of successf...

re we ever going to do anything about assisted repro-duction? Fertilizing eggs in a dish to have children chafes because such a momentous event lacks a clear regulatory framework. Occasional scandals and now the prospect of embryonic screening bring on the shivers. The temptation is to do something now before greater problems develop. Fukuyama and Furger would create a whole new federal agency ...