Racial differentiation of α- and ß- esterase isozymes in selected races of silkworm Bombyx mori L.

R.S. Umakanth and N.B. Krishnamurthy


Isozymes of α- and β-esterases were analyzed in four selected races of univoltine (B38P), bivoltine (NB18 and SF19) and multivoltine (C. nichi) by employing polyacrylamide gel electrophoretic technique (PAGE). Racial differences as a reflection of ontogenic differentiation of the multi-banded system in the races under study were identified, although the trend of differential activity of the esterase(s) follows a specific pattern in all the races. Certain differences are also known between α- and β-esterases is more prominent and exhibits higher activity.

Keywords: Bombyx mori. Esterases. Isozymes. Ontogeny. PAGE. Voltinism. Zymogram.

Annals of Tropical Research 18:(1996)
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