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Interspecific and Intraspecific Differentiation Within the Genus Cronartium by Isozyme and Protein Pattern Analysis

H. R. Powers

Abstract

Isozyme analyses were made on aeciospore collections from several species of the genus Cronartium and from several formae speciales of C. quercuum. Aeciospores from closely related Endocronartium harknessii also were tested. Esterase isozyme patterns provided the best differentiation. Patterns for Cronartium spp. differed markedly from those for E. harknessii. C.q.f.sp. banksianae, C.q.f.sp. virginianae, C.q.f.sp. echinatae, and C.q.f.sp. fusiforme were easily distinguished

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Key concepts: Biology, Intraspecific competition, Interspecific competition, Botany, Isozyme, Interspecific hybridization, Taxonomy (biology), Genus