Parents and Bad Seeds (IMAGE)

SMBE Journals (Molecular Biology and Evolution and Genome Biology and Evolution)

Parents and Bad Seeds

Caption

Representative seeds for each of the four cross types, obtained 60 days after pollination. From left to right, the bars quantify the average number of seeds per fruit in crosses among 'sib' plants of LA4329 (S. chilense), hybrid crosses with LA1616 plants (S. peruvianum) as pollen donors, hybrid crosses with LA4329 plants as pollen donors, and among 'sib' plants of LA1616. White bar proportions correspond to viable seeds, whereas gray proportions indicate shriveled, empty seeds. Note the coiled embryos in normal seeds from within-population crosses (4329 sib and 1616sib) and the flat, inviable seeds (aborted embryos) from hybrid crosses, which are much smaller when LA4329 acts as pollen donor. Scale bar, 3 mm.

Credit

Thomas Städler, Institute of Integrative Biology & Zurich-Basel Plant Science Center

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