Adult lifespan variation in silkworm, Bombyx mori L. and its effect on silk productivity

Abstract :

Lifespan study is important in silkworm since it directly or indirectly reflects on the viability and productivity of a breed. Polyvoltine silkworm races namely Pure Mysore, exhibiting longer adult lifespan and precocity exhibiting shorter adult lifespan were selected and analyzed for quantitative traits. Correlation data revealed that longer adult duration has positive impact on the larval characters like larval weight, larval duration, while shorter adult duration has bearing with better cocoon characters. RAPD-PCR amplification of the genomic DNA from female and male moths of Pure Mysore and precocity races revealed race-specific and sex-specific bands that could contribute to differential longevity.


Keyword :

Silkworm, lifespan, correlation, RAPD


Author(s) : Chaudhuri, R. S., Gopal, S., Sreenivasa, B. T., Kishor Kumar, C. M.
Downloads : 5
Published Issue : 2021 Vol. 16 Number 2


2021 Vol. 16 Number 2