
Chrystian Camilo Sosa ArangoPontificia Universidad Javeriana - Cali · Departamento de Ciencias Naturales y Matemáticas
Chrystian Camilo Sosa Arango
Bachelor of Science
PhD(c) in engineering and applied sciences
About
50
Publications
23,875
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
1,567
Citations
Introduction
My research interests are in the bioinformatics, systems biology, ecoinformatics, and biogeography fields, using a blend of data science, GIS, data science, network theory, phylogenetics, statistics, and environmental data analysis methodologies in order to identify the evolutionary factors that drive the distribution and the adaptation of organisms to different environments.
Additional affiliations
July 2016 - June 2017
July 2015 - May 2018
January 2013 - January 2015
Education
October 2019 - October 2022
July 2006 - December 2012
Publications
Publications (50)
Crop wild relatives have a long history of use in potato breeding, particularly for pest and disease resistance, and are expected to be increasingly used in the search for tolerance to biotic and abiotic stresses. Their current and future use in crop improvement depends on their availability in ex situ germplasm collections. As these plants are imp...
Crop wild relatives of sweet potato [Ipomoea batatas (L.) Lam., I. series Batatas]
have the potential to contribute to breeding objectives for this important root crop.
Uncertainty in regard to species boundaries and their phylogenetic relationships, the
limited availability of germplasm with which to perform crosses, and the difficulty of
introgre...
Abstract Pigeonpea [Cajanus cajan (L.) Millsp.] is a versatile, stress-tolerant, and nutritious grain legume, possessing traits of value for enhancing the sustainability of dry sub-tropical and tropical agricultural systems. The use of crop wild relatives (CWR) in pigeonpea breeding has been successful in providing important resistance, quality, an...
Poster showed in the CSSA annual meeting 2014 in Long Beach, CA
Sugarcane, a prominent global crop utilized for sugar, bioethanol, and renewable bioenergy production, holds significant importance in Colombia. In 2022, it contributed to the production of 2.1 million tons of sugar, 347 million liters of bioethanol, and 1745 GWh of electrical energy. The cultivation of sugarcane worldwide faces vulnerability to dr...
Wild potato relatives (Solanum L. sec. Petota) play a vital role in crop improvement, understanding crop evolution, and conserving potato diversity. However, these invaluable resources are often neglected and underutilized and are susceptible to threats such as climate change, urbanization, and agricultural expansion. Little is known about the dive...
On a planet experiencing constant human population growth, it is necessary to explore the anthropogenic effects on the genetic diversity of species, and specifically invasive species. Using an analysis that integrates comparative phylogeography, urban landscape genetics, macrogenetics and a systematic review, we explore the worldwide genetic divers...
Model organisms are fundamental in cancer research given that they rise the possibility to characterize in a quantitative-objective fashion the organisms as a whole in ways that are infeasible in humans. From this perspective, model organisms with short generation times and established protocols for genetic manipulation allow the understanding of b...
While the breed of cattle can impact on the composition and structure of microbial communities in the rumen, breed-specific effects on rumen microbial communities have rarely been examined in sheep. In addition, rumen microbial composition can differ between ruminal fractions, and be associated with ruminant feed efficiency and methane emissions. I...
Functional enrichment analysis is a cornerstone in bioinformatics as it makes possible to identify functional information by using a gene list as source. Different tools are available to compare gene ontology (GO) terms, based on a directed acyclic graph structure or content-based algorithms which are time-consuming and require a priori information...
Crop landraces have unique local agroecological and societal functions and offer important genetic resources for plant breeding. Recognition of the value of landrace diversity and concern about its erosion on farms have led to sustained efforts to establish ex situ collections worldwide. The degree to which these efforts have succeeded in conservin...
Functional enrichment analysis allows the identification of functional or biological characteristics of genes through gene ontology terms (GO terms). However, descriptive procedures to compare GO terms between gene lists and species are limited. Here we present a descriptive computational procedure implemented in R (GOCompare) that allows comparing...
Crop wild relatives (CWR) are an important agricultural resource as they contain genetic traits not found in cultivated species due to localised adaptation to unique environmental and climatic conditions. Phylogenetic Diversity (PD) measures the evolutionary relationship of species using the tree of life. Our knowledge of CWR PD in neotropical regi...
Wild lettuces (Lactuca L.) provide valuable genetic resources for crop breeding,
but are also significant invasive weeds. We explored the distributions, habitats,
and ecological characteristics of populations of wild Lactuca species in central
Chile. We documented two species – Lactuca serriola L. (prickly lettuce) and
Lactuca virosa L. (opium/bitt...
Effective assessments of the current status of biodiversity conservation are needed to support planning, policy and action, from local to global levels. Of particular use would be well documented, reproducible methods based on openly accessible data and tools. Such methods should provide an accurate estimate of the state of conservation of diversit...
Neotropical carnivorous mammals represent a very diverse group of 88 species including small, medium and large carnivores, the latter being iconic and of great importance in food webs such as the puma and jaguar. In this research, we performed a systematic review of all the studies in conservation genetics carried out to date in carnivorous Neotrop...
High concentrations of heavy metal (HM) ions impact agronomic staple crop production in acid soils (pH ≤ 5) due to their cytotoxic, genotoxic, and mutagenic effects. Among cytotoxic ions, the trivalent aluminum cation (Al³⁺) formed by solubilization of aluminum (Al) into acid soils, is one of the most abundant and toxic elements under acidic condit...
Aim
The conservation and effective use of crop genetic diversity are crucial to overcome challenges related to human nutrition and agricultural sustainability. Farmers’ traditional varieties (“landraces”) are major sources of genetic variation. The degree of representation of crop landrace diversity in ex situ conservation is poorly understood, par...
The North American crop wild relatives (CWR) of lettuce (Lactuca L.) represent an underexplored pool of genetic diversity of potential value to breeding programs. The 10 species belong to three different groups: a native clade including at least six allotetraploid species [L. biennis (Moench) Fernald, L. canadensis L., L. floridana (L.) Gaertn., L....
The datasets and code presented in this article are related to the research article entitled “Comprehensiveness of conservation of useful wild plants: an operational indicator for biodiversity and sustainable development targets”¹. The indicator methodology includes five main steps, each requiring and producing data, which are fully described and a...
Plants are essential sources of food, medicine, shelter, fuel, feed, and forage, and provide a wide range of additional ecosystem and cultural services to humanity. In recognition of the tremendous value of useful plants and of the increasing threats to their persistence, international agreements including the Convention on Biological Diversity, th...
Crop wild relatives native to the United States have proved useful as genetic resources in breeding more productive, nutritious, and resilient crops. Their utilization is expected to increase with better information about the species and improving breeding tools. But this utilization may be constrained by their limited representation in genebanks a...
Abstract Armed-conflicts often occur in tropical areas considered to be of high ‘conservation-value’, termed as such for their biodiversity or carbon-storage functions. Despite this important overlap, few studies have assessed how forest-biomass is affected by armed-conflicts. Thus, in this paper we develop a multinomial logit model to examine how...
Of the countries considering national-level policies for incentivizing reductions in forest-based greenhouse gas emissions (REDD+), some 25 are experiencing (or are emerging from) armed-conflicts. It has been hypothesized that the outcomes of the interactions between carbon-storage and peacebuilding efforts could result in either improved or worsen...
Crop wild relatives – the wild cousins of cultivated plants – are increasingly recognised for their potential to contribute to the productivity, nutritional quality and sustainability of agricultural crops. However, the use of these genetic resources is dependent upon their conservation in genebanks and consequent availability to plant breeders, th...
Characidium is a Neotropical fish genus. Its distribution ranges from eastern Panama to northern Argentina, and it is an important component of the Neotropical ichthyofauna present in the major rivers of South America. We here provide an approximation to the dispersal and historical distributions of Characidium. The biogeographic history of five sp...
Information about species included in the study.
(DOCX)
Codifications of ancestral areas.
(TIF)
Nucleotide substitution models and Substitution Saturation rate.
Nucleotide substitution models, Substitution Saturation using the index of substitution saturation (Iss) and the transition/tranversion rate estimated for each gene.
(DOCX)
Premise of the study:
Crop wild relatives (CWR) provide important traits for plant breeding, including pest, pathogen, and abiotic stress resistance. Therefore, their conservation and future availability are essential for food security. Despite this need, the world's genebanks are currently thought to conserve only a small fraction of the total di...
The wild relatives of domesticated crops possess genetic diversity useful for developing more productive, nutritious and resilient crop varieties. However, their conservation status and availability for utilization are a concern, and have not been quantified globally. Here, we model the global distribution of 1,076 taxa related to 81 crops, using o...
The aim of genetic conservation of crop wild relatives (CWR) is to maximize the maintenance of genetic diversity, but it is explicitly utilitarian in that it makes the link between CWR genetic diversity, its conservation and its utilization. The model for plant genetic resources conservation proposed by Maxted et al. (1997b) divides the process int...
p>PREMISE OF THE STUDY: Crop wild relatives (CWR) provide important traits for plant breeding, including pest, pathogen, and abiotic stress resistance. Therefore, their conservation and future availability are essential for food security. Despite this need, the world's genebanks are currently thought to conserve only a small fraction of the total d...
Crop wild relatives (CWR) are a rich source of genetic diversity for crop improvement. Combining ecogeographic and phylogenetic techniques can inform both conservation and breeding. Geographic occurrence, bioclimatic, and biophysical data were used to predict species distributions, range overlap and niche occupancy in 36 taxa closely related to sun...
The Achira (Canna indica L.) is an important commercial species that generates biomass, which, in turn, contributes to soil improvement among other factors. However, there is no data available on its potential distribution, how it can be affected by climate change in the future, or the food security of people that use the crop for their subsistence...
Crop wild relatives of sweetpotato [Ipomoea batatas (L.) Lam., I. series Batatas] have the potential to contribute to breeding objectives for this important root crop. Uncertainty in regard to species boundaries and their phylogenetic relationships, the limited availability of germplasm with which to perform crosses, and the difficulty of introgres...
Records (with and without coordinates) representing germplasm accessions and sightings of the wild relatives of potato. These records were used as input to assess the ex situ conservation urgency of 73 wild relatives of potato
Crop wild relatives (CWR) are a rich source of genetic diversity for crop improvement. Combining ecogeographic and phylogenetic techniques can inform both conservation and breeding. Geographic occurrence, bioclimatic, and biophysical data were used to predict species distributions, range overlap and niche occupancy in 36 taxa closely related to sun...
The use of crop wild relatives (CWR) in breeding is likely only to increase as utilization techniques improve and crop improvement under global change becomes more urgent. Significant gaps remain in the conservation of these genetic resources. Initial steps have been completed resulting in a CWR inventory of taxa occurring in the United States, wit...
Crop Wild Relatives (CWR), the wild and weedy relatives of cultivated plants, are increasingly valued for their contributions to crop breeding. Their usefulness is likely to grow further in the coming century as a result of climate change and associated food insecurity. It is perhaps surprising, given their estimated economic value to crop producti...
Questions
Questions (2)
I need to convert from micromoles per second per liter (µmol s⁻¹ L⁻¹) to millimoles per gram of dry cell weight per hour (mmol gDCW-1h-1)
Thanks!
Hi, I am using 16S Illumina MiSeq preparation using 20 cycles of PCR and 5 ng/ul as template for the amplicon PCR. Afterwards, I am using a purification step using the QIAquick PCR Purification columns dissolving this in 30 ul of EB before the index PCR step. The gels obtained by this amplicon PCR + gel are faint in most of the cases. My questions are
1.) What should be the minimal amount of PCR product to try an index PCR.
2.) Is it a better idea do a new amplicon PCR increasing the DNA template concentration to 20 ng/ul and increasing 25 cycles.
3.) Is it a need the purification step before the index PCR and just use one purification step after the index PCR?
Many thanks for the help!