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Seed morphology and chromosome counts in interploidy crosses. (A) Seed size and morphology in diploids, tetraploids, and triploids (2 × 4 or 4 × 2) in A. thaliana C24. m, maternal; p, paternal. By convention, the maternal parent is listed first in a genetic cross. (B) Chromosome counts in diploid, triploid, and tetraploid flowers in A. thaliana Col-0. (C) Seed weight in interploidy crosses. (D) Developing seeds dissected at 3–7 d after pollination (DAP) in Col-0.
