Whole genome re-sequencing was used to compare genome complexity between 15 cultivated accessions from different regions and gene pools. planifolia reflected domestication events. This study investigated these questions by assessing whether the genomic structure of Mexican V. High genomic heterozygosity levels within the globally cultivated ‘Daphna’ genome have raised questions on the possibility of a hybrid origin and analogous genomic signatures of vanilla cultivated within its origin. odorata is discussed.Īlthough vanilla is one of the most valuable spices, there is a lack of understanding of the genomic variability of the main vanilla producing species, Vanilla planifolia, within its cultivated origin, Mexico. The similarity and relationship between V. We also include a cladistic analysis of nucleotidic sequences of the internal transcribed spacer region of the nuclear ribosomal DNA, showing that this popular molecular marker is of sufficient variation to allow for species discrimination, permitting, with some exceptions that are discussed, the recognition of sterile samples and indicating that it is a good molecular marker to infer the phylogeny of this group. pompona, the cultivated species of the genus, and these are thus important in plant breeding. Several Mexican and Central American species of Vanilla are closely related to V. Additionally, we include a key to the species. trigonocarpa are also described, illustrated, and their nomenclature, typification, distribution, and other aspects of interest are discussed.
grandiflora are recognized at subspecific rank. sarapiquensis are here proposed as new taxa, and V. There are 15 different species in the area Vanilla costaricensis, V. We present a revision of the Mexican and Central American species of Vanilla.
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