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. 2017 Apr 13;8:548. doi: 10.3389/fpls.2017.00548

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Copyright © 2017 Berger, Shrestha and Ludwig.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Combined species principal components analysis (PCA) of old world lupin phenology, growth and productivity under rainfed field conditions in 2007. L. luteus (A), L. albus (B), and L. angustifolius (C) are plotted in 3 separate panels with identical vectors to clarify within species cluster differences. Factor loadings for PC1 and 2 are presented as vectors, abbreviated as follows: das, days after sowing; HI, harvest index; ht, height; no, number; wt, weight. Markers represent genotype scores, classified by habitat/domestication status clusters within species.