Natalia Pabon-Mora

Natalia Pabon-Mora
University of Antioquia | UdeA · Instituto de Biología

PhD
Full profesor at Universidad de Antioquia. PI at the Evo Devo Plant group

About

92
Publications
29,896
Reads
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794
Citations
Additional affiliations
August 2012 - present
University of Antioquia
Position
  • Professor (Associate)
Description
  • I am the Principal Investigator in the Plant Evo-Devo Research Group at the Universidad de Antioquia. We study genes and protein networks responsible for floral organ identity and fruit development in non-model Neotropical plants.
August 2012 - present
University of Antioquia
Position
  • Professor (Assistant) Biologia del Desarrollo
Description
  • Cursos Pregrado: Biologia del Desarrollo Seminario Biologia del Desarrollo en Plantas Fundamentos de Biologia Cursos Posgrado: Evo-Devo en plantas Neotropicales no-modelo
Education
May 2019 - October 2019
Technische Universität Dresden
Field of study
  • Plant Sciences
August 2006 - June 2012
CUNY Graduate Center
Field of study
  • Plant Sciences
February 2001 - February 2006
National University of Colombia
Field of study
  • Biology

Publications

Publications (92)
Article
Full-text available
Background The LEAFY ( LFY ) transcription factors are present in algae and across land plants. The available expression and functional data of these genes in embryophytes suggest that LFY genes control a plethora of processes including the first zygotic cell division in bryophytes, shoot cell divisions of the gametophyte and sporophyte in ferns, c...
Article
Full-text available
Aragoa, comprising 19 high-altitude North Andean species, is one of three genera in the Plantagineae (Plantaginaceae, Lamiales), along with Littorella and Plantago. Based primarily on plastid data and nuclear ITS, Aragoa is sister to a clade of Littorella + Plantago, but Plantagineae relationships have yet to be assessed using multigene datasets fr...
Article
In angiosperms the reproductive transition results in the transformation of a vegetative apical meristem (SAM) into an inflorescence meristem (IM), capable of forming floral meristems (FM). Two key players in the flowering transition are AGAMOUS-like 24 (AGL24) and SHORT VEGETATIVE PHASE (SVP). They are eudicot MADS-box paralogs performing opposite...
Article
Full-text available
Premise: The Rubiaceae are ideal for studying the diversity of fruits that develop from flowers with inferior ovary. We aimed to identify morpho-anatomical changes during fruit development that distinguish those derived from the carpel versus the extra-carpellary tissues. In addition, we present the fruit genetic core regulatory network in selecte...
Article
Premise: Floral spurs are key innovations associated with elaborate pollination mechanisms that have evolved independently several times across angiosperms. Spur formation can shift the floral symmetry from radial to bilateral, as it is the case in Tropaeolum, the only member of the Brassicales with floral nectar spurs. The genetic mechanisms unde...
Article
Full-text available
Background Theobroma cacao is a major source of flavonoids such as catechins and their monomers proanthocyanidins (PAs), widely studied for their potential benefits in cardiovascular diseases. Light has been shown to promote plant secondary metabolite production in vitro. In this study, cacao cells cultured in 7.5 L stirred tank photobioreactors (S...
Article
Full-text available
Tribe Plantagineae (Plantaginaceae) comprises ∼270 species in three currently recognized genera (Aragoa, Littorella, Plantago), of which Plantago is most speciose. Plantago plastomes exhibit several atypical features including large inversions, expansions of the inverted repeat, increased repetitiveness, intron losses, and gene-specific increases i...
Article
Full-text available
Flavonoids, carotenoids, betalains, and chlorophylls are the plant pigments responsible for floral color. Anthocyanins, a class of flavonoids, are largely responsible for the red, purple, pink, and blue colors. R2R3-MYB genes belonging to subgroup 6 (SG6) are the upstream regulatory factors of the anthocyanin biosynthetic pathway. The canonical mem...
Article
Background and Aims The epidermis constitutes the outermost tissue of the plant body. Although it plays major structural, physiological, and ecological roles in embryophytes, the molecular mechanisms controlling epidermal cell fate, differentiation, and trichome development is scarce across angiosperms, and almost unexplored in floral organs. Meth...
Article
Full-text available
The field of evolutionary developmental biology (evo-devo) can help address how morphological novelties evolve, a key question in evolutionary biology. In Arabidopsis thaliana, APETALA2 (AP2) plays a role in the development of key plant innovations including seeds, flowers, and fruits. AP2 belongs to the APETALA2/ETHYLENE RESPONSIVE ELEMENT BINDING...
Article
Abstract. Flowers in the Antidaphne genus are among the smallest in family Santalaceae.We traced the development and morphology of flowers in A. viscoidea and compared them with those in other members of the family. Both staminate and carpellate inflorescences proliferate through collateral and serial buds, and become dimorphic when fully elongated...
Conference Paper
Full-text available
During the reproductive transition in flowering plants, a vegetative apical meristem (SAM) transforms into an inflorescence meristem (IM) that forms bracts and flowers. In grasses such as rice, a genetic regulatory network (GRN) controlling reproductive transitions has been identified. It includes the integration of promoters and repressors from di...
Article
Abstract The oleaginous Jatropha curcas has been proposed as a promising source for biodiesel production in seed or potentially by in vitro production in cell cultures. However, little is known concerning the optimal growth conditions and the transcription of key factors and enzymes involved in the biosynthesis of storage lipids in J. curcas cell c...
Article
Background: The mechanisms controlling evolutionary shifts between dry and fleshy fruits in angiosperms are poorly understood. In Solanaceae, Cestrum and Brugmansia represent cases of convergent evolution of fleshy and dry fruits, respectively. Here we study the anatomical and genetic bases of the independent origin of fleshy fruits in Cestrum and...
Article
Full-text available
The family Apodanthaceae comprises two genera (Apodanthes and Pilostyles) and 11 endoparasitic species, all of them lacking root and shoot apical meristems, stems, and leaves. Their vegetative phase is reduced to a mycelium-like endophyte formed by strands of parenchyma cells that are in close contact to the host vasculature. These plants become ap...
Article
Controlled spatio‐temporal cell division and expansion are responsible for floral bilateral symmetry. Genetic studies have pointed to class II TCP genes as major regulators of cell division and floral patterning in model core eudicots. Here we study their evolution in perianth‐bearing Piperales and their expression in Aristolochia, a rare occurrenc...
Article
Full-text available
Flowering is a rigorously timed and morphologically complex shift in plant development. This change depends on endogenous as well as environmental factors. FLOWERING LOCUS T (FT) integrates several cues from different pathways acting as a flowering promoter. Contrary to the role of FT, its paralog TERMINAL FLOWER 1 (TFL1) delays floral transition....
Article
Full-text available
Background: In Aristolochia (Aristolochiaceae) flowers, the congenital fusion of the anthers and the commissural, stigmatic lobes forms a gynostemium. Although the molecular bases associated to the apical-basal gynoecium patterning have been described in eudicots, comparative expression studies of the style and stigma regulatory genes have never b...
Poster
Durante la transición reproductiva de angiospermas, el meristema apical vegetativo (SAM) se convierte en un meristema de inflorescencia (IM) que produce brácteas y flores. Las vías genéticas responsables de la floración actúan sobre estímulos ambientales como el fotoperíodo y la temperatura, así como sobre estímulos endógenos. En las plantas modelo...
Article
Full-text available
Theobroma cacao is a rich source of flavonoid compounds, which are potent antioxidants. Flavonoids are well-known for their health benefits against cardiovascular diseases, cancer, and improvement of blood pressure. For this reason, cacao mass production has drawn the attention from the functional foods industry. Furthermore, cacao cell suspensions...
Article
Holoparasitism has led to extreme plastome reduction. Plastomes in the legume holoparasite Pilostyles (Apodanthaceae) are the most reduced in both size and gene content known so far in Embryophytes. Here, we found that the Pilostyles boyacensis plastome, the only American species sequenced so far, is reduced to seven functional genes, accD, rpl2, r...
Article
Full-text available
Premise of research. The New World Loranthaceae correspond to a polyphyletic assembly of hemiparasites that exhibit a high floral diversity in terms of size, merism, groundplan, symmetry, and pollination strategies. Homology assessment as well as evolution of floral traits and ontogenetic pathways related to calyx, corolla, and androecium in the fa...
Article
The genetic mechanisms underlying fruit development have been identified in Arabidopsis and have been comparatively studied in tomato as a representative of fleshy fruits. However comparative expression and functional analyses on the bHLH genes downstream the genetic network, ALCATRAZ (ALC) and SPATULA (SPT) which are involved in the formation of t...
Article
Full-text available
The poorly known Aristolochia vitiensis is one of the few species of the genus that inhabits SW Pacific Islands. Here we revisit and complement the description of this Fijian endemic. Our study indicates that the species belongs to the subgenus Aristolochia sect. Diplolobus subsect. Euaristolochia. The trifid apex of the perianth is unique among th...
Article
Premise of the study: Bilateral symmetry in core eudicot flowers is established by the differential expression of CYCLOIDEA (CYC), DICHOTOMA (DICH), and RADIALIS (RAD), which are restricted to the dorsal portion of the flower, and DIVARICATA (DIV), restricted to the ventral and lateral petals. Little is known regarding the evolution of these gene...
Article
Aristolochia species possess a unique sepal-derived petaloid kettle-shaped perianth with distinctive features and epidermal cell types that likely promote pollination. Epidermal cell fate, proliferation, and specialization as well as perianth elaboration have been well studied in core eudicot model species, but little information is available in ea...
Article
Full-text available
Ecologically and economically important fleshy edible fruits have evolved from dry fruit numerous times during angiosperm diversification. However, the molecular mechanisms that underlie these shifts are unknown. In the Solanaceae there has been a major shift to fleshy fruits in the subfamily Solanoideae. Evidence suggests that an ortholog of FRUIT...
Article
Floral identity MADS‐box A, B, C, D, E, and AGL6 class genes are predominantly single copy in Magnoliids, and predate the whole genome duplication (WGD) events in monocots and eudicots. By comparison with the model species Arabidopsis thaliana, the expression patterns of B‐, C‐, and D‐class genes in stamen, carpel, and ovules are conserved in Arist...
Conference Paper
Bilateral symmetry in orchid flowers is explained by the extreme elaboration of the median petal (labellum), stamen abortion, and congenital stamen-stigma fusion. This contrasts with the typical floral groundplan in other Asparagales, in which trimerous, radially symmetrical flowers exhibit free floral organs. Advances in molecular phylogenetic res...
Article
Full-text available
There is a vast amount of fruit morphological diversity in terms of their texture, the number of carpels, if those carpels are fused or not and how fruits open to disperse the seeds. Arabidopsis thaliana, a model eudicot, has a dry bicarpellate silique, when the fruit matures, the two valves fall apart through the dehiscence zone leaving the seeds...
Data
Primers used for the in situ hybridization analyses in the four RPL homologs.
Data
Developmental landmarks for each stage of flower and fruit development in Papaver somniferum, based on Drea et al. (2007) and our complementary stages.
Data
BofrRPL1, 2, 3 and PsomRPL protein sequences showing the regions where specific primers were designed. BofrRPL reverse primers were designed on the 3′UTR.
Data
MEME analysis showing conserved motifs across basal eudicots RPL protein sequences. Letter size denotes the degree of conservation of each amino acid.
Data
List of the genes included in the phylogenetic analysis, with corresponding species, family and accession number of the sequences.
Article
Full-text available
Catechins, including catechin (C) and epicatechin (E), are the main type of flavonoids in cacao seeds. They play important roles in plant defense and have been associated with human health benefits. Although flavonoid biosynthesis has been extensively studied using in vitro and in vivo models, the regulatory mechanisms controlling their accumulatio...
Article
Background and aims: The genetic basis of fruit development has been extensively studied in Arabidopsis, where major transcription factors controlling valve identity (i.e. FRUITFULL), replum development (i.e. REPLUMLESS) and the differentiation of the dehiscence zones (i.e. SHATTERPROOF, INDEHISCENT and ALCATRAZ) have been identified. This gene re...
Article
Full-text available
Floral diversification in Loranthaceae reaches its highest peak in the Andes. The flowers of the exclusively Andean genus Tristerix exhibit tubular and vividly coloured flowers pollinated by hummingbirds. We studied inflorescence and flower morphoanatomy of the two Colombian species, T. longebracteatus and the highly endangered T. secundus. Both sp...
Article
Full-text available
Background and Aims: The taxonomy of the Panamanian species of Aristolochia is revised 57 years after the first treatment of the genus for the Flora of Panama. The taxonomic, nomenclatural and chorological novelties of the species present in Panama are updated and discussed with respect to the current infrageneric classification. Methods: Specimens...
Article
Full-text available
Se describe e ilustra una especie nueva de Aristolochia perteneciente a la serie Thyrsicae, un grupo monofilético de 19 especies distribuidas desde México hasta Bolivia y centro del Brasil. Hasta ahora, los únicos especímenes conocidos de la nueva especie han sido recolectados en la región central del departamento del Chocó, Colombia. Además, se pr...
Article
Full-text available
Premise of research. The Apodanthaceae, the only parasitic lineage within the order Cucurbitales, comprises one species of Apodanthes and 12 species of Pilostyles, parasitizing Salicaceae, and legume stems, respectively. All species are achlorophyllous and holoparasitic, with a mycelium-like endophyte. Although flowers, fruits, and seeds are the on...
Article
Full-text available
Background: SPATULA (SPT) and ALCATRAZ (ALC) are recent paralogs that belong to the large bHLH transcription factor family. Orthologs of these genes have been found in all core eudicots, whereas pre-duplication genes, named paleoSPATULA/ALCATRAZ, have been found in basal eudicots, monocots, basal angiosperms and gymnosperms. Nevertheless, function...
Article
Full-text available
Psittacanthus is one of the few genera of Loranthaceae that has been described as lacking endosperm and developing polycotyledonous embryos. Based on the study of seeds and seedlings of 12 species of Psittacanthus, we demonstrate that the embryo has two leafy cotyledons surrounded by a massive, compound, starchy, chlorophyllous endosperm, as in mos...
Article
Full-text available
CYCLOIDEA-like genes are involved in the symmetry gene network, limiting cell proliferation in the dorsal regions of bilateral flowers in core eudicots. CYC-like and closely related TCP genes (acronym for TEOSINTE BRANCHED1, CYCLOIDEA, and PROLIFERATION CELL FACTOR) have been poorly studied in Asparagales, the largest order of monocots that include...
Data
Expression patterns of TCP-like homologs in Arabidopsis thaliana (Brassicaceae), Solanum lycopersicum and Solanum tuberosum (Solanaceae). (A) Arabidopsis thaliana AthTCP24 (CIN-like). (B) Arabidopsis thaliana AthTCP20 (PCF-like). (C) Solanum lycopersicum SlyTCP24 (CIN-like). (D) Solanum lycopersicum SlyTCP11 (PCF-like). (E) Solanum tuberosum StuTCP...
Data
Primers used for TCP-like gene expression analyses.
Data
Conserved motifs in and Orchidaceae and non-Orchidaceae Asparagales TCP-like proteins. Model core eudicots and monocots used as reference include Arabidopsis thaliana, Antirrhinum majus, and Oryza sativa. Motifs 1, 2, and 3 correspond to the conserved TCP domain. Motif 11 indicates the characteristic R domain in Class II TCP-like genes. Motif 14 co...
Data
ML analysis of TCP-like genes with extended Solanaceae sampling. ML phylogenetic analysis of TCP-like genes with reduced sampling including only model organisms like Arabidopsis thaliana, Oryza sativa, Solanum lycopersicum, Solanum tuberosum, two Orchidaceae species, Cattleya trianae, Orchis italica, one non-Orchidaceae Asparagales, Hypoxis decumbe...
Article
Full-text available
Premise of the study: Loranthaceae, Santalaceae, and Viscaceae are the most diversified hemiparasitic families of Santalales in the Andes. Their partial inflorescences (PIs) vary from solitary flowers, or dichasia in most Santalales, to congested floral groups along articles in most Viscaceae. The atypical articled inflorescences in Phoradendreae...
Article
Plant evolution has been shaped by key morphological and developmental novelties that have improved plant’s fitness as terrestrial organisms. Here we describe and discuss some of these traits in an evo-devo context, emphasizing those that have allowed seed plants, and especially flowering plants, to diversify and become dominant on Earth. Flowers a...
Article
Full-text available
Psittacanthus corderoi F. González, F. J. Roldán & Pabón-Mora, a species from the department of Amazonas, Colombia, is here described and illustrated for the first time. The new species is similar to P. lasianthus Sandwith, from Guyana and Venezuela, but it differs by various vegetative and floral traits. The most conspicuous diagnostic trait is th...
Article
Full-text available
In parasitic plants, the reduction in plastid genome (plastome) size and content is driven predominantly by the loss of photosynthetic genes. The first completed mitochondrial genomes (mitogenomes) from parasitic mistletoes also exhibit significant degradation, but the generality of this observation for other parasitic plants is unclear. We sequenc...
Article
Full-text available
Background Bocconia and Macleaya are the only genera of the poppy family (Papaveraceae) lacking petals; however, the developmental and genetic processes underlying such evolutionary shift have not yet been studied. Results We studied floral development in two species of petal-less poppies Bocconiafrutescens and Macleayacordata as well as in the cl...
Article
Full-text available
Aristolochia fimbriata (Aristolochiaceae) is a member of an early diverging lineage of flowering plants and a promising candidate for evo-devo studies. Aristolochia flowers exhibit a unique floral synorganization that consists of a monosymmetric and petaloid calyx formed by three congenitally fused sepals, and a gynostemium formed by the congenital...
Article
Full-text available
Premise of research. Loranthaceae flowers exhibit exceedingly variable ground plan, size, and pollination syndromes. The homology of floral organs (especially the calyculus and the perianth), the evolutionary shifts from bisexual to unisexual flowers, and the trends in ovary and ovule reduction, primarily studied in Old World taxa, have been contro...
Article
Full-text available
Famous for its blind cavefish and Darwin's finches, Latin America is home to some of the richest biodiversity hotspots of our planet. The Latin American fauna and flora inspired and captivated naturalists from the nineteenth and twentieth centuries, including such notable pioneers such as Fritz Müller, Florentino Ameghino, and Léon Croizat who made...