Abstract: We have evaluated the 'proto-indica' model that is the proponent of multiple domestication of rice but a single origin of the key genes in 'japonica'. Attainment of non-shattering, a marker; appeared least integral to the initial phases of domestication. The other archeological determinants were less discernible in specimens. Existence of the key domestication genes in the wild rice and absence of introgression signature in 'indica' further weakened the hypothesis. Moreover, 'japonica' introduction from China happened in a backdrop of a culture...
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Topics: 
Evolutionary biology
Botany