Identification and quality evaluation of Lushan Yunwu tea from different geographical origins based on metabolomics.

The relationship between the chemical composition and quality of Lushan Yunwu tea (LYT) from different geographical origins is not clear. Sensory evaluation, metabolomics analyses combined with chemometrics were conducted on LYT from 8 different geographical origins, and altitude was identified as the main factor responsible for the differences among LYT. A total of 32 non-volatile and 27 volatile compounds were identified as marker metabolites to distinguish the origins of high altitudes from those of low altitudes.

Molecular characteristics and abundance of insulin-like androgenic gland hormone and effects of RNA interference in Eriocheir sinensis.

Insulin-like androgenic gland hormone (IAG) has an important function in sexual differentiation and somatic growth in crustaceans. In this study, there was cloning of the full-length sequence of IAG from Eriocheir sinensis (Es-IAG). The full-length Es-IAG gene was 1392 base pairs long and encoded a protein of 151 amino acid residues.