Inverted cuttings of exhibit an interesting growth response to inversion. This response is characterized by enlargement of the stem above the shoot site, while the upright stem shows obvious outward growth below the shoot site. In this study, we examined transcriptome changes in bark tissue at four positions on upright and inverted cuttings of : position B, the upper portion of the stem; position C, the lower portion of the stem; position D, the bottom of new growth; and position E, the top of new growth.
View Article and Find Full Text PDFMethods for constructing trees using DNA sequences, known as molecular phylogenetics, have been applied to analyses of phylogenetic origin, evolutionary relatedness and taxonomic classification. Combining data sequenced in this study and downloaded from GenBank, we sampled 112 (chloroplast data) / 122 (ITS data) specimens belonging to 49 (chloroplast data) / 46 (ITS data) poplar species or hybrids from six (chloroplast data) / five sections (ITS data). Maximum parsimony and Bayesian inference were used to analyze phylogenetic relationships within the genus Populus based on eight chloroplast combinations and ITS regions.
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