Lifetime genealogical divergence within plants leads to epigenetic mosaicism in the shrub <i>Lavandula latifolia</i> (Lamiaceae)

Epigenetic mosaicism is a possible source of within-plant phenotypic heterogeneity, yet its frequency and developmental origin remain unexplored. This study examines whether extant epigenetic heterogeneity within Lavandula latifolia (Lamiaceae) shrubs reflects recent modifications experienced independently by different plant parts or, alternatively, it the cumulative outcome steady lifetime process. Leaf samples from architectural modules (branch tips) were collected three L. plants characterized epigenetically global DNA cytosine methylation state methylation-sensitive amplified fragment-length polymorphism (MS-AFLP) markers. characteristics then assembled with information on branching history plants. Methods borrowed phylogenetic research used to assess genealogical signal variation reconstruct trajectory traits. Plants heterogeneous, as shown differences among in states 6 8% MS-AFLP All features exhibited significant Events divergence occurred throughout lifespan individuals subsequently propagated branch divisions. Internal diversification took place steadily during their development, process which eventually led persistent mosaicism.