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. 2017 Jan 6;7:39759. doi: 10.1038/srep39759

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Copyright © 2017, The Author(s)

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(a) The pollen ornamentation types’ constitution and weight distribution of species population and variety population of flowering crabapple. (b)The weighting ratio (P_S/P_V) distribution of ornamentation types in the two populations. Green column length (P_S/P_V − 1) stands for the relative weight (the weight of WRS type in species population exceeds that in variety population); red column length (1 − P_S/P_V) represents the relative weight (the weight of pollen types in variety population exceeds that in species population). (c) The average score of pollen ornamentation degree of regularity of two populations and the weight of score of each ornamentation type. The radius of circle presents the average score value; the pie chart presents the weight constitution of the ornamentation types scores of pollen germplasms. (d) Weight differential of pollen ornamentations of the two populations in three dimensional directions (X_i Y_i Z_i). P_S, percentage of species quantity of each ornamentation type; P_V, percentage of variety quantity of each ornamentation type. R, Regular Type; IR, Irregular Type; WR, Wholly Regular Type; PR, Partially Regular Type; S, Single-pattern Type; M, Multi-pattern Type.