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Cymbopogon flexuous of the family Poaceae is a highly valued grass known throughout the world for its aromatic properties. The objective of the study is to identify novel myrcene and methyl iso-eug...

The present work has been aimed to investigate the chemical composition of the essential oil of Artemisia vulgaris L. leaves by gas chromatography followed by mass spectrometry method (GC/MS), anti...

Zingiber officinale Roscoe commonly known as ginger is one of the most important spice crop of North East India. This plant has found a wide range of application- as condiments and spice, as flavouring agent, in medicine and as therapeutic uses in pharmaceuticals industries. Different varieties of Zingiber officinale are cultivated in this region but their identification is still lacking till now. Evaluation of genetic diversity is therefore essential for conservation, to avoid duplicity of germplasm and maintenance of this important species. Molecular markers Randomly Amplified Polymorphic DNA (RAPD) and Inter Simple Sequence Repeat (ISSR) are tested for eighty high dry recovery genotypes. Selections of genotypes are based on more than 25% dry rhizome recovery. Among 90 primers (40 RAPD and 50 ISSR) initially tested, 26 RAPD and 28 ISSR are used in the study which showed 84.1% and 85.2% polymorphism respectively. Dendrogram generated from UPGMA (Unweighted Pair Group Method with Arithmetic Mean) cluster analysis for both RAPD and ISSR marker was similar. Similar conclusion can be drawn from the result of cluster analysis. These primers could be used for future studies as varietal developmental programme on high dry rhizome recovery lines.

Kaempferia galanga is very important medicinal and aromatic plants of throughout Asia. It is used in skin diseases, piles, cough, fever, epilepsy, spleen disorders, wounds, asthma and rheumatism; a...

Capsicum chinense Jacq. of family Solanaceae is one of the hottest chilli in the world, which contains higher capsaicin compared to other chilli species available in India. Currently the pungency of C. chinense is decreasing due to selection of robust genotypes for increasing yield, intermixing of local cultivars etc. Moreover till date very little information is available regarding the molecular characterization from North East India, which is considered to be the centre of origin of this plant species. The objective of our study is to evaluate molecular diversity among high capsaicin containing lines of C. chinense collected from four states (Nagaland, Assam, Arunachal Pradesh and Manipur) of North East India. Total 227 germplasm were collected out of which 120 genotypes were screened based on more than 1.2% capsaicin content. Genetic parameters analysed using Popgene software indicated that Nagaland population has higher diversity among the four region populations. Jaccard’s similarity coefficient between the genotypes ranged from 0.52 to 0.99, indicating moderate variation between the genotypes. Clustering analysis depicted three clusters where germplasm collected from Assam and Manipur showed close relatedness and Principal Coordinate Analysis (PCoA) plot obtained also supports cluster analysis data. Germplasm evaluation is of immense important for genetic crop improvement. The present findings will be certainly helpful in C. chinense germplasm conservation, characterization and in trait specific breeding programme.