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Publications (92)
Lima bean (Phaseolus lunatus L.) is the second most important domesticated species of Phaseolus in the world and could represent a precious alternative for food security and quality, as well as play a major role for sustainability in the face of climate change in Latin America and worldwide. Currently, many experts on conservation, domestication, g...
We evaluated the role of gene flow and wild-crop introgression on the structure and genetic diversity of Lima bean ( Phaseolus lunatus ) in the Yucatan Peninsula, an important Mesoamerican diversity area for this crop, using a genotyping-by-sequencing approach (15,168 SNP markers) and two scales. At the local scale, STRUCTURE and NGSEP analyses sho...
The genus Phaseolus , native to the Americas, is composed of more than eighty wild species, five of which were domesticated in pre-Columbian times. Since the beginning of domestication events in this genus, ample opportunities for gene flow with wild relatives have existed. The present work reviews the extent of gene flow in the genus Phaseolus in...
Orphan crops, which include many of the tropical fruit species used in the juice industry, lack genomic resources and breeding efforts. Typical of this dilemma is the lack of commercial cultivars of purple passion fruit, Passiflora edulis f. edulis, and of information on the genetic resources of its substantial semiwild gene pool. In this study, we...
Lima bean ( Phaseolus lunatus L .), one of the five domesticated Phaseolus bean crops, shows a wide range of ecological adaptations along its distribution range from Mexico to Argentina. These adaptations make it a promising crop for improving food security under predicted scenarios of climate change in Latin America and elsewhere. In this work, we...
Lima bean ( Phaseolus lunatus L. ) is one of the five domesticated Phaseolus bean crops, which are essential sources of dietary proteins for human consumption. Compared to common bean ( P. vulgaris ), it shows a wider range of ecological adaptations along its distribution range from Mexico to Argentina. These adaptations and its phenotypic plastici...
Exploring the genomic architecture of species and populations divergence aids understanding how lineages evolve and adapt, and ultimately can show the repeatability of evolutionary processes. Yet, the genomic signatures associated with divergence are still relatively unexplored, leading to a knowledge gap on whether species divergence ultimately di...
Identity of the 209 common bean and Lima bean accessions used in this study. The G identification number (from the Genetic Resources Unit at the International Center for Tropical Agriculture), the status and the genepool/race identity are shown. For Lima bean, four genepool populations, according to Chacon-Sanchez and Martinez-Castillo (2017), are...
Frequency distributions of relative differentiation across hierarchically nested levels of divergence in Phaseolus beans. Relative differentiation is calculated as the fixation index (FST). Average FST values per sliding window (window size = 1 × 107 bps, step size = 500 kb) were computed as follows: (A) between species (P. lunatus vs. P. vulgaris)...
Detail of the genomic landscape of relative differentiation in Phaseolus beans across hierarchically nested levels of divergence. Sliding window analyses (window size = 1 × 107 bps, step size = 500 kb) for relative differentiation, as measured by the fixation index (FST), were computed as follows: (A) between species (P. lunatus vs. P. vulgaris), (...
Detail of the genomic landscape of divergence in Phaseolus beans across hierarchical nested levels. Sliding window analyses (window size = 1 × 107bps, step size = 500 kb) are shown for: (A) relative differentiation (from Figure 3A) computed as the fixation index (FST) between species (P. lunatus vs. P. vulgaris), (B) delta divergence (ΔDiv), accord...
Genomic landscape of within-population relative differentiation in Phaseolus beans across hierarchically nested levels. Sliding window analyses (window size = 1 × 107 bps, step size = 500 kb) for relative differentiation, as measured by the fixation index (FST), were computed in three between-species within-genepool comparisons as follows: (A) betw...
Correlation of overall FST estimates when using the two available versions of the common bean assembly (Schmutz et al., 2014) as reference genome (R2 = 0.948, 95% CI 0.946–0.950). Chromosomes (A) without and (B) with (Pv2, Pv9, and Pv10, the latter in red) reported inversions (Bonifácio et al., 2012) are shown.
Plant domestication can be seen as a long-term experiment that involves a complex interplay among demographic processes and evolutionary forces. Long-standing questions about plant domestication are the number of times a species was domesticated, the extent of the domestication bottleneck, and the genetic basis of adaptive processes. Crops such as...
Chloroplasts and mitochondria originated from separate endosymbiotic events that occurred about 1.5 billion years ago. In plants, the quadripartite nature of the chloroplast genome is a conserved feature with very little size variation among species. In contrast, size of mitochondrial genomes varies greatly in plants with high rate of rearrangement...
Plant domestication can be seen as a long-term process that involves a complex interplay among demographic processes and evolutionary forces. Previous studies have suggested two domestication scenarios for Lima bean in Mesoamerica: two separate domestication events, one from gene pool MI in central-western Mexico and another one from gene pool MII...
La exploración de la arquitectura genética de la divergencia de especies y poblaciones ayuda a entender cómo evolucionan los linajes y qué tan repetible es la evolución. Sin embargo, las huellas genómicas asociadas con la divergencia todavía están relativamente inexploradas, lo que conlleva a una brecha de conocimiento sobre si la divergencia de la...
The cape gooseberry (Physalis peruviana L.), a fruit species cultivated in the Andes, is one of the major fruit exports of Colombia. We hypothesized that the Andean cordilleras in Colombia play a role in structuring the genetic diversity of this crop. For addressing this hypothesis, a set of 85 Colombian cape gooseberry accessions from different de...
Previous studies have suggested that the Mesoamerican small-seeded landraces of Lima bean may have been domesticated more than once in Mesoamerica, once in central-western Mexico and another one in an area between Guatemala and Costa Rica. However, these findings were based on sequencing of only one locus from nuclear DNA, and additional confirmati...
The origin of agriculture and the crop domestication are two of the most important processes in human history. Mexico is considered one of the main centers of origin of agriculture and domestication of plants intheworld. Evidence of domestication of several species of worldwide importance exists there, for example thePhaseolus beans. Lima bean (P....
Understanding genetic structure in wild relatives of a crop is important for crop improvement and conservation. Recently, two gene pools (MI and MII) were reported in wild Lima bean (Phaseolus lunatus) from Mexico, a domestication center of Mesoamerican landraces. However, the evidence was based on limited genomic sampling. Here we sought to confir...
En el marco del proyecto de investigacion “Evaluacion fenotipica, quimica y agronomica de especies nativas y foraneas promisorias por calidad de aceites esenciales y con uso potencial en el sector agricola” fueron seleccionadas las especies: Lippia alba, Lippia origanoides, Tagetes caracasana y Tagetes zypaquirensis por ser promisorias en calidad d...
The objective of this study was to evaluate methods of asexual propagation with stem cuttings in the aromatic plant species Lippia origanoides (accessions CA-90 and CA-93), Lippia alba (accession CA-300) and Tagetes zypaquirensis (accession CA-247) and determine the germination behavior of Tagetes
caracasana (accession CA-10), in order to contribut...
In the present study, the diversity in essential oil composition and genetic structure of two populations of Lippia origanoides from Colombia, one from the department of Magdalena on the Atlantic coast in the north, and the other from the canyon of the Chicamocha river in the northeast, were compared. Individuals were sampled in each of the two pop...
The Mesoamerican (MA) gene pool of lima bean (Phaseolus lunatus L.) is widely distributed from northern Mexico to northern Argentina in its wild forms and from the southern United States to the east coast of Brazil in its domesticated forms. This broad distribution and lack of wild accessions of the MA gene pool in many areas of its natural distrib...
As part of the research project "Phenotypic, chemical, and agronomic assessment of promising native and foreign species based on the quality of their essential oils and potential use in agriculture", the following species were selected: Lippia alba, Lippia origanoides, Tagetes caracasana, and Tagetes zypaquirensis, as promising essential oil specie...
Ceratocystis paradoxa (Anamorph: Thielaviopsis paradoxa) is parasitic on a range of economic and food crops and is the cause of dry basal rot, a limiting disease in oil palm. The objective of this study was to determinate the pathogenic and genetic diversity of Thielaviopsis isolates from oil palms in Colombia, Ecuador and Brazil. A total of 164 st...
The genetic diversity and population structure of Lippia origanoides, a species of the Verbenaceae family that shows promise as a crop plant, was investigated along an altitudinal gradient in the basin of the Chicamocha River in northeastern Colombia. The economic importance of the species, quality of its essential oils, and the fact that it is res...
Phaseolus lunatus L., Lima bean, has been domesticated at least twice in the Americas, once in the Andean region and at another time in Mesoamerica; however, the domestication history of this crop in the latter region remains unclear. In this study, a phylogeographic analysis of DNA polymorphisms in the internal transcribed spacer (ITS) region of t...
The aim of the present study was to evaluate agronomical traits in a germplasm collection of cape gooseberry from central and north-eastern Colombia in order to measure the variability of the collection in relation to the geographic origin of the accessions and their biological status (cultivated, feral and undetermined). For this purpose, a total...
Crop domestication has been aptly considered by Jack Harlan (1992) as bringing wild-growing plants into the human household. This deep alteration of ecological relationships between the domestication-candidate and other biota in the novel and very different cultivated ecosystem – the domus – was eventually reflected in marked morpho-physiological a...
span style="font-size: 12.0pt; line-height: 115%; font-family: " lang="EN-US"> Aromatic and medicinal plant species are a valuable resource for research and development of pharmaceutical, cosmetic, crop protection and nutritional agents, due to the high amount of bioactive phytochemicals that they contain. However, these compounds are a major obsta...
Physalis peruviana, commonly known as Cape gooseberry, is an Andean Solanaceae fruit with high nutritional value and interesting medicinal properties. In the present study we report the development and characterization of microsatellite loci from a P. peruviana commercial Colombian genotype. We identified 932 imperfect and 201 perfect Simple Sequen...
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p class="MsoNormal" style="text-align: justify; line-height: normal; margin: 0cm 0cm 0pt; mso-layout-grid-align: none;"> The Andean blackberry ( Rubus glaucus Benth.) is a promissory fruit crop for Colombia with potential to become an international commodity due to its high nutritional and nutraceutical value. Farmer genotypes from the national R....
Evaluación de resistencia o tolerancia de germoplasma de uchuva (Physalis peruviana) a Fusarium oxysporum como contribución al control integrado de la enfermedad. OBJETIVO Evaluar la resistencia o tolerancia al marchitamiento producido por Fusarium oxysporum en Physalis peruviana L como insumo para la generación de variedades resistentes que contri...
The geographical scale of genetic structure in a continuous population is highly dependent on its breeding system and dispersion capabilities, and this knowledge is important for the study of population dynamics as well as for conservation purposes. In the present study, spatial autocorrelation statistics and intersimple sequence repeat (ISSR) mark...
In the present article, the main contributions that Darwin and other scholars, contemporary and posterior to him, made on the subject of plant domestication, in special the geography of crop origins, are reviewed. The article also reviews recent studies where the archaeological and genetic evidence have complemented each other to give a better unde...
En este artículo se revisan los aportes que diversos autores, contemporáneos y posteriores a Darwin, han realizado al estudio del origen de las plantas domesticadas, en especial al tema del origen geográfico de los cultivos. Posteriormente se revisa cómo la evidencia arqueológica junto con la evidencia genética han ayudado a comprender el origen de...
The aims of this research were to assess the genetic structure of wild Phaseolus lunatus L. in the Americas and the hypothesis of a relatively recent Andean origin of the species. For this purpose, nuclear and non-coding chloroplast DNA markers were analyzed in a collection of 59 wild Lima bean accessions and six allied species. Twenty-three chloro...
The aims of this research were to assess the genetic structure of wild Phaseolus lunatus L. in the Americas and the hypothesis of a relatively recent Andean origin of the species. For this purpose, nuclear and non-coding chloroplast DNA markers were analyzed in a collection of 59 wild Lima bean accessions and six allied species. Twenty-three chloro...
En este artículo se revisan los aportes que diversos autores, contemporáneos y posteriores a Darwin, han realizado sobre el estudio del origen de las plantas domesticadas, en especial al tema del origen geográfico de los cultivos. Posteriormente se revisa cómo la evidencia arqueológica junto con la evidencia genética han ayudado a comprender el ori...
The wild common bean (Phaseolus vulgaris) is widely but discontinuously distributed from northern Mexico to northern Argentina on both sides of the Isthmus of Panama.
Little is known on how the species has reached its current disjunct distribution. In this research, chloroplast DNA polymorphisms
in seven non-coding regions were used to study the hi...
The genus Lippia (Verbenaceae) includes about 200 species mainly distributed in the Neotropical region. In Colombia, situated in northern South America, Lippia origanoides, Lippia alba, Lippia citriodora and Lippia dulcis have the potential to become commercial crops because of their essentials oils. Nevertheless, these species, and the genus as a...
Chloroplast DNA polymorphisms were studied by PCR sequencing and PCR-restriction fragment length polymorphism in 165 accessions of domesticated landraces of common bean from Latin America and the USA, 23 accessions of weedy beans, and 134 accessions of wild beans covering the entire geographic range of wild Phaseolus vulgaris. Fourteen chloroplast...
The evolutionary history of Phaseolus vulgaris is important to those working on its genetic resources, but is not reflected in its infraspecific taxonomy. Genetic isolation of wild populations between and also within Middle and South America has resulted in morphological and molecular differentiation. Populations from northern and south- ern ends o...
