DRYAD Sample Location

Passeport data of the 334 accessions used in the present manuscript. Accession CIP number, accession name, Collection number, Accession country of origin, Elevation of collecting site, Latitude and Longitude of collecting site, are provided. All accessions are issued from CIP genebank (International potato center). Complete passeport data are also available on the CIP web site (http://germplasmdb.cip.cgiar.org/biomart/martview/acc7fbd28f3343fa2c81be86a979e5a3)

cpSSRs data

Choloroplast microsatellites data. Each accession number is presented with its allelic composition for the seven loci used in our study (ccmp2, ntcp18, ntcp28, ntcp26, ibcp5, ibcp8 and ibcp10)

nuclear SSRs data

Nuclear microsatellites data of the 130 New World sweet potato landraces. For hexaploids, we can obtain from 1 to 6 peaks or bands (6 alleles) per locus. Allelic composition (from allele 1 to allele 6) is provided for each accession, for the 13 microsatellites used in our study

Types of failure as measured in 3-point bending tests in stems of wild taxa in French Guiana and in Rondônia, Brazil and domesticated manioc (<i>Manihot esculenta</i> subsp. <i>esculenta</i>) from French Guiana and Brazil (results of chi² tests with <i>P</i>-values comparing wild and domesticated taxa).

<p>See text for data on shrubs and climbers from the limited data set from Brazil.</p

Stiffness (MPa) against xylem cell wall cross-sectional contribution to xylem tissue.

<p>(A) Shrub phenotypes of the wild and domesticated taxa. (B) Climber phenotypes of the wild and domesticated taxa.</p

Vessel size and density traits (means ± s. d.) with <i>P</i>-values of Mann–Whitney tests comparing medians between shrub phenotypes of the wild and domesticated manioc and between climber phenotypes of these two taxa.

<p>Vessel size and density traits (means ± s. d.) with <i>P</i>-values of Mann–Whitney tests comparing medians between shrub phenotypes of the wild and domesticated manioc and between climber phenotypes of these two taxa.</p

Microfibril angle for shrub and climber phenotypes of wild and domesticated manioc in French Guiana.

<p>(A) MFA at relative distances within wood cylinder from pith to bark for wild and domesticated shrubs. (B) MFA at relative distance within wood cylinder from pith to bark for shrubs and climbers of the domesticate. (C) Young’s modulus against MFA at periphery of wood cylinder for shrub phenotypes of the wild and the domesticated taxon. Each symbol represents a segment of stem in the range of 0.3 to 2.5 m above ground level. (D) Young’s modulus against MFA at periphery of wood cylinder for shrubs and climbers of the domesticate. Each symbol represents a segment of stem in the range of 0.3 to 4.0 m above ground level.</p

Xylem tissue traits as measured in transverse sections (means ± s. d.) with <i>P</i>-values of Mann–Whitney tests comparing medians between shrub phenotypes of wild and domesticated manioc and between climber phenotypes of these two taxa in French Guiana.

<p>Xylem tissue traits as measured in transverse sections (means ± s. d.) with <i>P</i>-values of Mann–Whitney tests comparing medians between shrub phenotypes of wild and domesticated manioc and between climber phenotypes of these two taxa in French Guiana.</p

Transverse sections of wood cylinders showing different starch grain densities from French Guiana.

<p>(A) Wild shrub (B) domesticated shrub Sections were made at a thickness of 60 µm and stained with 1% iodine solution in 90% ethanol for 5 minutes; scale bar  =  250 µm).</p

Wild and domesticated manioc from French Guiana: Spearman rank correlation coefficients (R_s) of wood cylinder geometry (% contribution of wood cylinder to axial second moment of area of stem) with (i) Young’s modulus (bending) and (ii) maximum bending stress.

<p>Wild and domesticated manioc from French Guiana: Spearman rank correlation coefficients (R_s) of wood cylinder geometry (% contribution of wood cylinder to axial second moment of area of stem) with (i) Young’s modulus (bending) and (ii) maximum bending stress.</p