منابع مشابه
Plant evolution: The dominance of maize
The gene teosinte branched 1 controls major differences in architecture between cultivated maize and its wild ancestor. The differences correlate with different amounts of gene product.
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15 صفحه اولteosinte branched1 and the origin of maize: evidence for epistasis and the evolution of dominance.
Two quantitative trait loci (QTL) controlling differences in plant and inflorescence architecture between maize and its progenitor (teosinte) were analyzed. Complementation tests indicate that one of these, which is on chromosome arm 1L, is the locus for the maize mutant teosinte branched1 (tb1). This QTL has effects on inflorescence sex and the number and length of internodes in the lateral br...
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A difference in dominance rank is an often-usedcue to resolve con icts between two animals without escalated ghts. At the group level, adherence to a dominance convention ef ciently reduces the costs associatedwith con icts, but from an individual’s point of view, it is dif cult to explainwhy a low ranking individualshould accept its subordinatestatus. This is especially true if, as sugge...
متن کاملThe genetics of maize evolution.
Maize and its closest wild relatives, the teosintes, differ strikingly in the morphology of their female inflorescences or ears. Despite their divergent morphologies, several studies indicate that some varieties of teosinte are cytologically indistinguishable from maize and capable of forming fully fertile hybrids with maize. Molecular analyses identified one form of teosinte (Zea mays ssp. par...
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ژورنال
عنوان ژورنال: Current Biology
سال: 1997
ISSN: 0960-9822
DOI: 10.1016/s0960-9822(06)00204-1