Evolution of flowering time in a selfing annual plant: Roles of adaptation and genetic drift.

There was no significant difference in the family effect between years (interaction family × year not significant; LRT: χ 2 = 1.2; df = 2; p = .552), but the family effect was highly significant ( χ 2 = 32.6; df = 1; p = 1 × 10 ‐ 8 , Table S2 ) and the heritability of the sensitivity to vernalization was 0.19 (±0.04) (Table 2 ).

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