The karyotype and nucleoli of Guizotia abyssinica (Compositae)
نویسندگان
چکیده
منابع مشابه
Exploration of the reproductive barrier between noug (Guizotia abyssinica) and its progenitor Guizotia scabra ssp. schimperi
Domestication can be used to study the formation of barriers to reproduction because much is known about the selective forces at work during the process of domestication as well as the general timeline under which it occurs. Studying domestication may reveal how barriers to reproduction arise quickly and may give insight into speciation under natural conditions. Barriers to reproduction are ver...
متن کاملPatterns of domestication in the Ethiopian oil-seed crop noug (Guizotia abyssinica)
Noug (Guizotia abyssinica) is a semidomesticated oil-seed crop, which is primarily cultivated in Ethiopia. Unlike its closest crop relative, sunflower, noug has small seeds, small flowering heads, many branches, many flowering heads, and indeterminate flowering, and it shatters in the field. Here, we conducted common garden studies and microsatellite analyses of genetic variation to test whethe...
متن کاملEffect of auxins and cytokinins on plant regeneration from hypocotyls and cotyledons in niger (Guizotia abyssinica
Guizotia abyssinica (L.f.) Cass. a indigenous medicinal and oil yielding plant of India and have been never studied scientifically for its beneficial effects. The present investigation was carried to study the standardization parameters of the plant and to evaluate the crude extracts for pharmacological potential to confirm and provide scientific basis for its use in traditional medicine and al...
متن کاملIdentifying genomic regions under selection during the domestication of noug (Guizotia abyssinica)
Certain traits are selected for during the course of domestication. Evidence of positive selection manifests itself as reduced variation between particular loci in the domesticate relative to its wild progenitor (Volis 2008). I propose to look for evidence of such selective sweeps in the Ethiopian composite crop Guizotia abyssinica relative to its progenitor Guizotia scabra ssp. schimperii usin...
متن کاملEvaluation of a simplified Guizotia abyssinica seed medium for differentiation of Cryptococcus neoformans.
A simplified Guizotia abyssinica seed medium, eliminating glucose, creatinine, and phosphate, was evaluated for the isolation and presumptive identification of Cryptococcus neoformans. Of 80 isolates of C. neoformans tested, 69 (86%) developed the characteristic brown pigment within 12 h on this medium as against only 5 isolates (6%) on the complete medium. In primary cultures of experimentally...
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ژورنال
عنوان ژورنال: Hereditas
سال: 2008
ISSN: 0018-0661
DOI: 10.1111/j.1601-5223.1992.tb00010.x