Utilization of morphological and molecular markers to study colour deterioration of the cotton Giza 70 in the commercial scale [electronic resource].

Includes references.

Gene frequencies and genotypes frequencies are constant from generation to generation in the absence of migration, mutation and selection in a large random mating population. Although, Egyptian cotton programme depends on elaborate maintenance system but some varieties have shown some changes in their homogeneity or uniformity of some traits such as lint colour, lint quality and seed characters (Naked and Fuzzy). Traditionally, breeder’s seed companies and certification agencies determine genetic purity using physical traits expressed by the seed, seedling and mature plant. Recently, continuing advancements in molecular biology techniques provide even greater promise for enhancing the sensitivity of genetic purity determinations (McDonald, 1998).

Summary in Arabic.

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