MADS-box genes of maize: frequent targets of selection during domestication
نویسندگان
چکیده
منابع مشابه
MADS-box genes of maize: frequent targets of selection during domestication.
MADS-box genes encode transcription factors that are key regulators of plant inflorescence and flower development. We examined DNA sequence variation in 32 maize MADS-box genes and 32 randomly chosen maize loci and investigated their involvement in maize domestication and improvement. Using neutrality tests and a test based on coalescent simulation of a bottleneck model, we identified eight MAD...
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Maize was domesticated from its wild ancestor, teosinte, in southern Mexico between ~6,250 and ~10,000 years ago. The domestication of maize resulted in an extensive phenotypic change in female inflorescence (ear) structures from teosinte. MADS-box genes encode transcription factors which are key regulators of plant inflorescence and flower development. We examined DNA sequence variation in 32 ...
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Crop species experienced strong selective pressure directed at genes controlling traits of agronomic importance during their domestication and subsequent episodes of selective breeding. Consequently, these genes are expected to exhibit the signature of selection. We screened 501 maize genes for the signature of selection using microsatellites or simple sequence repeats (SSRs). We applied the Ew...
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Phenotypic variation on which selection can act during evolution may be caused by variation in activity level of developmental regulatory genes. In many cases, however, such genes affect multiple traits. This situation can lead to co-evolution of traits, or evolutionary constraint if some pleiotropic effects are detrimental. Here, we present an analysis of quantitative traits associated with ge...
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The MADS-box genes of land plants are extensively diverged to form a superfamily and are important in various aspects of development including the specification of floral organs as homeotic selector genes. The closest relatives of land plants are the freshwater green algae charophyceans. To study the origin and evolution of land plant MADS-box genes, we characterized these genes in three charop...
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ژورنال
عنوان ژورنال: Genetics Research
سال: 2010
ISSN: 0016-6723,1469-5073
DOI: 10.1017/s0016672310000509