analysis of carotenoid biosynthesis pathway in cassava ( Crantz).

The apocarotenoids play a vital role in plant growth and development process, especially strigolactones, which can induce rooting and help in the interaction with symbiotic microbes in plants. They also act as colorants, antioxidants, hormones, signalling components, scent/aroma constituents and chromophores. approaches are valuable in reducing the complexity regarding gene networks in plants that help to develop new biotechnological and bioinformatics tactics in crop improvement programmes.

Association mapping of drought tolerance and agronomic traits in rice (Oryza sativa L.) landraces.

Background: Asian cultivars were predominantly represented in global rice panel selected for sequencing and to identify novel alleles for drought tolerance. Diverse genetic resources adapted to Indian subcontinent were not represented much in spite harboring useful alleles that could improve agronomic traits, stress resilience and productivity. These rice accessions are valuable genetic resource in developing rice varieties suited to different rice ecosystem that experiences varying drought stress level, and at different crop stages.

Comparative Study on the Chemical Structure and In Vitro Antiproliferative Activity of Anthocyanins in Purple Root Tubers and Leaves of Sweet Potato ( Ipomoea batatas).

The structure and in vitro antiproliferative activity of anthocyanins in the root tubers of a sweet potato variety cv. Bhu Krishna and the purple leaves of a promising accession S-1467 were studied with the objectives of understanding the structure-activity relationship and comparing the leaf and tuber anthocyanins. The chemical structure of anthocyanins was determined by high-resolution electrospray ionization mass spectrometry analysis.

Effect of chemical modification with citric acid on the physicochemical properties and resistant starch formation in different starches.

Potato, cassava, sweet potato, banana and lentil starches were modified with citric acid (CA) with the main objective of enhancing the resistant starch (RS) and slowly digestible starch (SDS) fractions and to compare starches of diverse botanical origins. The percentage CA substitution of modified starches ranged from 3.84 to 15.

Correlated mutations via regularized multinomial regression.

Background: In addition to sequence conservation, protein multiple sequence alignments contain evolutionary signal in the form of correlated variation among amino acid positions. This signal indicates positions in the sequence that influence each other, and can be applied for the prediction of intra- or intermolecular contacts. Although various approaches exist for the detection of such correlated mutations, in general these methods utilize only pairwise correlations.

Short-duration cassava genotypes for crop diversification in the humid tropics: growth dynamics, biomass, yield and quality.

Background: Short-duration (6-7 months) cassava provides opportunities to smallholder farmers for effective utilisation of resources such as land, moisture and nutrients as well as diversification of enterprise and income. The variation in biomass production and partitioning, seasonal course of growth indices, yield, quality and nutrient uptake of ten short-duration/early-bulking genotypes of cassava and their impact on nutrient contents in soil in a lowland situation akin to rice fallow were examined in this study.

Results: Triploid 2-18 gave the highest yield (38.