In many plant species, self-incompatibility (SI) is genetically controlled by a single multiallelic S locus. Previous analysis of S alleles in the Solanaceae, in which S locus ribonucleases (S RNases) are responsible for stylar expression of SI, has demonstrated that allelic diversity predated speciation within this family. To understand how allelic diversity has evolved, we investigated the mo...

Low levels of genetic diversity and divergence at nuclear loci have previously been observed for cycloidea and fil1-like genes within and between several Antirrhinum species, and divergence at these loci is also low between species in genera at different levels of relatedness in the former family Scrophulariaceae (Digitalis and Verbascum). The low divergence values are surprising, because (base...

In a continuation of our studies on biologically active substances of the Paraguayan crude drug,"Typychd kuratir(Scoparia dulcis L.,Scrophulariaceae),1)we isolated a polyoxygenated flavone(1),which was found to exhibit cytotoxicity against human cultured cells such as HeLa 229,2)HeLa S3,3)HEp-2,4)FL,5)Chang liver6)and intestine 4077)cells. Some flavonoids have been reported to be cytotoxic to K...

he study is categorized into four main sections. Introduction section introduces the rationale of the paper and SL. Next section reviews the studies on Second Life in EFL learning, and focuses on the effects of SL on affective states, interaction and communication in SL, collaborative and autonomous learning in SL, sharing culture in SL, engagement and participation in SL, some other issues and...

A generalization of the Jordan–Schwinger map: classical version and its q–deformation. Abstract For all three–dimensional Lie algebras the construction of generators in terms of functions on 4-dimensional real phase space is given with a realization of the Lie product in terms of Poisson brackets. This is the classical Jordan–Schwinger map which is also given for the deformed algebras SL q (2, ...

The unitarity of the NS supersymmetric coset SL(2, R)/U(1) is studied for the discrete representations. The results are applied to the proof of the no-ghost theorem for fermionic strings in AdS3×N in the NS sector. A no-ghost theorem is proved for states in flowed discrete representations.

Let Fq be a finite field of characteristic p having q elements, where q = p and p ≥ 5. Let SL(2,Z3) be the special linear group of 2 × 2 matrices with determinant 1 over Z3. In this note we establish the structure of the unit group of FqSL(2,Z3). 2010 MSC: 16U60, 20C05

Four B-class MADS box genes specify petal and stamen organ identities in tomato. Several homeotic mutants affected in petal and stamen development were described in this model species, although the causal mutations have not been identified for most of them. In this study we characterized a strong stamenless mutant in the tomato Primabel cultivar (sl-Pr), which exhibited homeotic conversion of p...

A cross-sectional comparative study was carried out to investigate the productive and reproductive performances of different genetic groups of crossbred cows at three different farming conditions in Bangladesh. Crossbred cows (n=90) those already completed third lactations, were selected randomly from three different dairy farms (e.g. Jarip, Mullah and Nahar) located in Chittagong, Bangladesh. ...