Data from: A morphometric study of species boundaries of the wild potato Solanum series Conicibaccata: a replicated field trial in Andean Peru

Solanum series Conicibaccata contains about 40 wild potato (section Petota) species distributed from southern Mexico to central Bolivia. It contains diploids (2n = 2x = 24), tetraploids (2n = 4x = 48) and hexaploids (2n = 6x = 72) and some polyploids are likely allopolyploids. Our morphological phenetic study in an Andean site in central Peru (12°S, 3200 m altitude) is a replicated study from one done in the north central United States (45°N, 180 m elevation) but uses more species (28 vs. 25), accessions (173 vs. 100), and morphological characters (72 vs. 45) and also includes members of related series Piurana. Both US and Peruvian studies provide phenetic support with Canonical Discriminant Analyses (but poorly if at all with Principal Components Analyses) to distinguish the following species or species groups in series Conicibaccata: 1) S. agrimonifolium and S. oxycarpum as a possible single species, and 2) S. longiconicum (tetraploids from Mexico and Central America), 3) the South American Conicibaccata diploids as a possible single species, except for 4) S. trinitense that is distinctive, 5) the South American tetraploids as a group except for 6) S. flahaultii that is distinctive. However, character states among these species or species groups are often present only by using a range of widely overlapping character states (polythetic support). We suspect that our continuing molecular studies will support the synonymy of many of these species.Morphometric DatasetFajardo et al. database.xlsSupplementary Figure 1Map of Mexico and Central America showing generalized localities 1-10 of the accessions examined in this study.Fajardo et al. Suppl. Fig 1.pdfSupplementary Figure 2Map of Northwestern South America showing generalized localities 11-33 of the accessions examined in this study.Fajardo et al. Suppl. Fig 2.pdfSupplementary Figure 3Map of Peru and Northern Bolivia showing generalized localities 34-45 of the accessions examined in this study.Fajardo et al. Suppl. Fig 3.pdfSupplementary Figure 4Means, ranges, and one standard deviation of the mean for eight of the 40 morphological characters determined by Stepwise Descriminant Analysis to descriminate members of ser. ConicibaccataFajardo et al. Suppl. Fig 4.pdfSupplementary Figure 5Canonical Descriminant Analysis (excluding the outliers S. contumazaense, S. longiconicum, and S. trinitense) using just the 28 normally distributed morphological characters of members of ser. Conicibaccata and Piurana and 35 normally distributed morphological characters of only members of ser. ConicibaccataFajardo et al. Suppl. Fig 5.pdfSupplementary Figure 6Principal Coordinate Analyses based on 72 morphological characters of members of ser. Conicibaccata and ser. Piurana, and ser. Conicibaccata alone examined in this study using Gower's extended coefficient.Fajardo et al. Suppl. Fig 6.pdfSupplementary Figure 7Means, ranges, and one standard deviation of the mean for five of the 17 morphological characters determined by Stepwise Character Analysis to discriminate diploid from polyploid members of ser. Conicibaccata.Fajardo et al. Suppl. Fig 7.pdfSupplementary Figure 8Means, ranges, and one standard deviation of the mean for five of the 17 morphological characters determined by Stepwise Discriminant Analysis to discriminate members of ser. Conicibaccata from members of ser. PiuranaFajardo et al. Suppl. Fig 8.pd