Review Article

The Transcriptomics of Secondary Growth and Wood Formation in Conifers

Figure 1

Cross section of a stem from an adult tree of Pinus pinaster Ait., showing juvenile and mature wood. The centre of the stem (circular portion at left) has juvenile wood, characterized by growth rings with large width due to a high portion of early wood (lighter rings). Mature wood (external triangular portion at right) presents thin growth rings due to reduced portions of early wood (lighter rings, yellow arrow) and higher percentage of late wood (darker rings, white arrow).
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