Fig. 3: Homeologous recombination generates diversity in early generation tetraploid hybrids derived from peanut’s ancestors.
From: The genome sequence of segmental allotetraploid peanut Arachis hypogaea
The initial allotetraploid, A. ipaensis × A. duranensis (2n = 4× = 40) has yellow flowers (left), as expected. However, after several generations some lineages spontaneously began to bear orange flowers (right). By genotyping, this could be assigned to homeologous recombination, where in alleles that confer yellow flowers (from A. duranensis) are replaced by alleles that confer orange flowers (from A. ipaensis; see dataset 6 in ref. 25). Scale bar, 5 mm.
