Abstract
Background Forest trees have ecological and economic importance, and Japanese cedar has highly valued wood attributes. Thus, studies of molecular aspects of wood formation offer practical information that may be used for screening and forward genetics approaches to improving wood quality.
Highlights
Forest trees have ecological and economic importance, and Japanese cedar has highly valued wood attributes
An average of only 4.8 cambial cells was found in each radial file, significantly fewer than found in other samples collected in April (p < 0.01), June (p < 0.01) and August (p < 0.05)
AtMyb20 and AtMyb43 (Cj.5920_1) were expressed preferentially; AtMyb103 was downregulated during this period. These findings suggest that the functional roles of MYB20 and MYB43 orthologs are conserved in cell-wall synthesis of vascular tissue in Japanese cedar and other species
Summary
Forest trees have ecological and economic importance, and Japanese cedar has highly valued wood attributes. Genomics approaches have been applied to explore the molecular basis of growth and development in a few forest tree species with economic relevance. Transcript profiling in trees has focused on wood formation (xylogenesis) because of the ecological significance of Japanese cedar (Cryptomeria japonica) is an allogamous coniferous species that relies on wind-mediated pollen and seed dispersal, and it is one of the most important forestry tree species in Japan. Seventeen million seedlings are supplied as planting material for forestation every year, making this species very important for Japanese forestry today, as it has been since ancient times [16]
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