QTL, multivariate and population structure analyses of agronomic traits in the interspecific cross Oryza sativa x Oryza glaberrima

The algebraic structure of moduli spaces of 3d N=2N=2 supersymmetric gauge theories is studied by computing the Hilbert series which is a generating function that counts gauge invariant operators in the chiral ring. These U(Nc) theories with Nf flavors have Aharony duals and their moduli spaces receive contributions from both mesonic and monopole operators. In order to compute the Hilbert series, recently developed techniques for Coulomb branch Hilbert series in 3d N=4N=4 are extended to 3d N=2N=2 . The Hilbert series computation leads to a general expression of the algebraic variety which represents the moduli space of the U(Nc) theory with Nf flavors and its Aharony dual theory. A detailed analysis of the moduli space is given, including an analysis of the various components of the moduli space

Herbicide Resistant Fertile Transgenic Wheat Plants Obtained by Microprojectile Bombardment of Regenerable Embryogenic Callus

8 Pags.We have obtained fertile transgenic wheat plants resistant to the broad spectrum herbicide Basta® (active ingredient phosphinothricin, PPT) by high velocity microprojectile bombardment. The plasmid pBARGUS was used to deliver the selectable bar gene into cells of Type C long–term regenerable embryogenic callus. Phosphinothricin acetyltransferase (PAT) enzyme activity encoded by the bar gene was demonstrated in four independent putative transformed callus lines selected on Basta® from two cultivars. Although somatic embryos and shoots were formed in each of the four lines, plants were recovered only from two. More than 100 green R0 plants were regenerated from the first callus line, of which 40 were grown to maturity. PAT activity was shown in each of the 28 R0 plants tested. Southern analyses confirmed the presence of the bar gene in all of the callus lines, and in each of the R0 and two of the four R1 plants tested. Transformed R0, R1 and R2 plants were resistant to topical applications of Basta®, and the bar gene segregated as a dominant Mendelian trait in R1 and R2 plants.Peer reviewe