The genome of a landlocked Atlantic salmon Salmo salar characterized through high-throughput sequencing

H. Hauge,

T. Tengs,

M. K. Dahle,

A. B. Kristoffersen,

S. Grove,

C. R. Wiik-Nielsen

Published: Oct. 31, 2016

A wide range of life-history tactics can be found within salmonid fish. The genetic basis for these adaptations remains largely unknown, but we have sought to investigate any large scale genetic changes associated with a non-anadromous life cycle. After the most recent ice age (approximately 9,500 years ago), some populations of Atlantic salmon Salmo salar L., were trapped in fresh water and developed into isolated landlocked populations that managed to complete a full life cycle without ever reaching the marine environment. To explore whether this transition was accompanied by gene-loss events, high-throughput sequencing of a non-migratory Namsblank (‘småblank’), an Atlantic …

Improvement in cocoon yield induced by phytojuvenoid on the multivoltine mulberry silkworm (Bombyx mori Linn.)

Roli Srivastava,

V. B. Upadhyay

Published: Jan. 30, 2015

Impact of phytojuvenoid on commercial parameters in Bombyx mori, a monophagous insect, was studied. The variation in the phytojuvenoid concentration significantly influenced the length of cocoon and the number of larval treatment did not cause significant influence on the length of cocoon of B. mori. The length of cocoon increased from 2.88 cm (control) to the maximum level of 3.65 cm in 30% phytojuvenoid concentration - triple treated larvae and the volume of cocoon increased with increasing the number of larval treatment from single to triple in 10, 20 and in 30% phytojuvenoid concentration and the volume was highest (3.48 …