Abstract:It is a debate whether trunk twisting belongs to environmental
alteration or genetic variation. Through a diallel cross experiment, we
first determined that trunk twisting of Yunnan pines was controlled by
recessive genes. Anatomical analysis identified that straight and twisty
types differed in xylem and phloem. RNA-seq of materials enriched by
laser microdissection revealed three genes involved in auxin signal
transduction, photosynthesis, and sucrose metabolism, namely ARF,
POR, and CBH. These genes were co… Show more
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