Nonspecific esterase isozyme polymorphism in natural populations of Gosaypium thurberi

Cherry, J.P.; Katterman, F.R.H.

Phytochemistry, 1971 10(1): 141-45

1971


ISSN/ISBN: 0031-9422
Accession: 014578317

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Abstract
Examination of seed samples of Gossypium thurberi by means of acrylamide gel electrophoresis was undertaken to detect the presence of molecular polymorphism in nonspecific esterases. Although little morphological variation is observed within and between populations of this species, six different nonspecific seed esterase zymograms were demonstrated suggesting that high molecular polymorphism is present. Studies using urea indicated that the specific isozyme patterns did not result from secondary alterations in structure of polypeptide species during extraction and therefore are not in vitro artifacts.