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Cultivated peanut (Arachis hypogaea) is an allotetraploid species whose ancestral genomes are most likely derived from the A-genome species, A. duranensis, and the B-genome species, A. ipaensis. The very recent (several millennia) evolutionary origin of A. hypogaea has imposed a bottleneck for allelic and phenotypic diversity within the cultigen. However,(More)
Cultivated peanut or groundnut (Arachis hypogaea L.) is an important oilseed crop with an allotetraploid genome (AABB, 2n = 4x = 40). Both the low level of genetic variation within the cultivated gene pool and its polyploid nature limit the utilization of molecular markers to explore genome structure and facilitate genetic improvement. Nevertheless, a(More)
The long-standing interest in the role of pollinators as selective agents on fl oral design since Darwin (1862) continues to the present (e. It has evolved into a lively discussion on the relative role of pollinator-mediated selection vs. alternative mechanisms in their contribution to the evolution of fl oral and infl orescence Much of the data generated(More)
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