2016
DOI: 10.1104/pp.15.01679
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Response of Organ Structure and Physiology to Autotetraploidization in Early Development of Energy Willow Salix viminalis

Abstract: The biomass productivity of the energy willow Salix viminalis as a short-rotation woody crop depends on organ structure and functions that are under the control of genome size. Colchicine treatment of axillary buds resulted in a set of autotetraploid S. viminalis var. Energo genotypes (polyploid Energo [PP-E]; 2n = 4x = 76) with variation in the green pixel-based shoot surface area. In cases where increased shoot biomass was observed, it was primarily derived from larger leaf size and wider stem diameter. Auto… Show more

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Cited by 85 publications
(80 citation statements)
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“…As these conditions may vary from the actual situations in the nature, tolerance of the tetraploids to milder water stress conditions might be investigated in the future experiments. The tetraploids exhibit dramatically morphological changes when compared with the diploids, which is consistent with earlier studies (Dudits et al, 2016;Tan et al, 2015). One of the major changes in the tetraploids is the smaller number of stomatal density relative to the diploids, implying that polyploidization may negatively regulate the stomatal development under normal conditions.…”
Section: Discussionsupporting
confidence: 89%
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“…As these conditions may vary from the actual situations in the nature, tolerance of the tetraploids to milder water stress conditions might be investigated in the future experiments. The tetraploids exhibit dramatically morphological changes when compared with the diploids, which is consistent with earlier studies (Dudits et al, 2016;Tan et al, 2015). One of the major changes in the tetraploids is the smaller number of stomatal density relative to the diploids, implying that polyploidization may negatively regulate the stomatal development under normal conditions.…”
Section: Discussionsupporting
confidence: 89%
“…The tetraploids exhibit dramatically morphological changes when compared with the diploids, which is consistent with earlier studies (Dudits et al ., ; Tan et al ., ). One of the major changes in the tetraploids is the smaller number of stomatal density relative to the diploids, implying that polyploidization may negatively regulate the stomatal development under normal conditions.…”
Section: Discussionmentioning
confidence: 98%
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“…Polyploidy species usually exhibit greater vigor, have more biomass [1] and are more adaptable and tolerant to different environmental conditions than diploids [2,3]. Many woody plants, such as mulberry, jujube, and willow carry multiple copies of the same genome, are classified as autopolyploid [4][5][6], and are attracting considerable attention for forest tree breeding.…”
Section: Introductionmentioning
confidence: 99%