Helen Alves Penha

ORCID: 0000-0002-7156-444X
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About
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Research Areas
  • Banana Cultivation and Research
  • Plant Pathogenic Bacteria Studies
  • Plant and Biological Electrophysiology Studies
  • Plant tissue culture and regeneration
  • Chromosomal and Genetic Variations
  • Genomics and Phylogenetic Studies
  • Plant-Microbe Interactions and Immunity
  • Plant Diversity and Evolution
  • Animal Genetics and Reproduction
  • CRISPR and Genetic Engineering
  • Plant Virus Research Studies
  • Nematode management and characterization studies
  • Plant and animal studies
  • Galectins and Cancer Biology
  • Protist diversity and phylogeny
  • Light effects on plants
  • Cocoa and Sweet Potato Agronomy
  • Photosynthetic Processes and Mechanisms
  • Heavy Metals in Plants
  • Plant Molecular Biology Research
  • Bacterial biofilms and quorum sensing
  • Pineapple and bromelain studies
  • Genetic and phenotypic traits in livestock
  • Reproductive Physiology in Livestock
  • Cassava research and cyanide

University of Georgia
2023

Universidade Estadual Paulista (Unesp)
2016-2020

Universidade de São Paulo
2010-2014

The family Passifloraceae consists of some 700 species classified in around 16 genera. Almost all its members belong to the genus Passiflora. In Brazil, yellow passion fruit (Passiflora edulis) is considerable economic importance, both for juice production and consumption as fresh fruit. availability chloroplast genomes (cp genomes) their sequence comparisons has led a better understanding evolutionary relationships within plant taxa. this study, we obtained complete nucleotide Passiflora...

10.3389/fpls.2017.00334 article EN cc-by Frontiers in Plant Science 2017-03-10

Lentibulariaceae is the richest family of carnivorous plants spanning three genera including Pinguicula, Genlisea, and Utricularia. Utricularia globally distributed, and, unlike Pinguicula has both aquatic terrestrial forms. In this study we present analysis chloroplast (cp) genome reniformis. U. reniformis a standard cp 139,725bp, encoding gene repertoire similar to essentially all photosynthetic organisms. However, an exclusive combination losses pseudogenization plastid...

10.1371/journal.pone.0165176 article EN cc-by PLoS ONE 2016-10-20

The passion fruit (Passiflora edulis) is a tropical crop of economic importance both for juice production and consumption as fresh fruit. also used in concentrate blends that are consumed worldwide. However, very little known about the genome species. Therefore, improving our understanding genomics essential to some degree pre-requisite if its genetic resources be more efficiently. In this study, we have constructed large-insert BAC library provided first view on structure content genome,...

10.1186/1471-2164-15-816 article EN cc-by BMC Genomics 2014-09-26

Utricularia belongs to Lentibulariaceae, a widespread family of carnivorous plants that possess ultra-small and highly dynamic nuclear genomes. It has been shown the Lentibulariaceae genomes have shaped by transposable elements expansion loss, multiple rounds whole-genome duplications (WGD), making platform for evolutionary comparative genomics studies. To explore evolution Utricularia, we estimated chromosome number genome size, as well sequenced terrestrial bladderwort reniformis (2n = 40,...

10.3390/ijms21010003 article EN International Journal of Molecular Sciences 2019-12-18

Abstract One of the current challenges tropical fruit crop improvement is to incorporate molecular marker‐based approaches into conventional breeding programmes. This study was designed build an integrated genetic map sweet passion ( Passiflora alata ), a diploid (2 n = 18) outcrossing species which greatly appreciated for in natura consumption, and reported inspire cosmetic pharmaceutical companies create plant‐derived compounds. With this mind, full‐sib family 180 individuals genotyped...

10.1111/aab.12028 article EN Annals of Applied Biology 2013-04-04

The carnivorous plants of the family Lentibulariaceae have attained recent attention not only because their interesting lifestyle, but also dynamic nuclear genome size. genomes span an order magnitude and include species with smallest in angiosperms, making them a powerful system to study mechanisms expansion contraction. However, little is known about mitochondrial DNA (mtDNA) sequences this family, evolutionary forces that shape organellar genome. Here we report sequencing assembly...

10.1371/journal.pone.0180484 article EN cc-by PLoS ONE 2017-07-19

With 3 tables Abstract Yellow and sweet passion fruit are insect‐pollinated species native to the tropics. Fruits used commercially for human consumption worldwide. The yellow is an outcrossing with self‐incompatible flowers. However, reproductive system of ( Passiflora alata ) has not been well elucidated. objective this work was characterize aspects mating in using random amplified polymorphic DNA (RAPD) microsatellite markers, particularly rate P. progenies. A multilocus t m = 0.994...

10.1111/j.1439-0523.2009.01744.x article EN Plant Breeding 2010-02-03

Abstract The aim of this study was to construct and characterize an SSR ‐enriched genomic library for Passiflora alata, a fruit species native the Brazilian plateau eastern Amazon region. There is potential improve crop, as attractive because its pleasant aroma flavour characteristics. Of 862 sequences, 391 (45%) were found have s. We identified 412 microsatellites: 69% classified perfect, 23% imperfect, 5% interrupted 3% compound microsatellites. main types repeat sequences dinucleotide...

10.1111/pbr.12083 article EN Plant Breeding 2013-07-26

Abstract Citrus canker type A is a serious disease caused by Xanthomonas citri subsp. (X. citri), which responsible for severe losses to growers and the citrus industry worldwide. To date, no canker-resistant genotypes are available, there limited information regarding molecular genetic mechanisms involved in early stages of development. Here, we present CitrusKB knowledge base. This first vivo interactome database different cultivars, it was produced provide valuable resource on their...

10.1093/database/baaa081 article EN cc-by Database 2020-01-01

The purpose of this work is to demonstrate the reproductive efficacy and economic impact a complementary tool TAI (timed artificial insemination) protocols - administration single dose recombinant human galectin-1 (rHGAL1) during insemination procedure. GAL-1 can be considered as modulator pregnancy development process. Reproductive was verified through rate in first service, by ultrasonography (at 28-35 days) contemporary groups (YG) cows subdivided into 02 experimental (Control Group,...

10.22167/2675-441x-20210573 article EN Quaestum 2021-12-21

Peptidoglycan hydrolases are enzymes that cleave the peptidoglycan of bacterial cell wall, facilitating growth, division, and turnover. Xanthomonas citri subsp. (X. citri), causal agent citrus canker, encodes an Escherichia coli M23 peptidase EnvC homolog. is a LytM factor required for septal splitting daughter separation. In this study we investigate how contributes to virulence separation X. citri. We observed disruption envC gene (ΔenvC) led reduction in virulence. Upon inoculation into...

10.20944/preprints202310.0767.v1 preprint EN 2023-10-12

The family Parodontidae is a small group of fish that has distinct morphological differences. Despite its conserved diploid number, structural cytogenetic polymorphisms involving sex chromosomes are commonly described in this group. Conversely, reports on numerical owing to the occurrence supernumerary rare. To better understand karyotype evolution group, we analyzed specimens Parodon nasus collected Três Bocas/PR stream, applying different techniques. All individuals presented 54...

10.1080/00087114.2017.1318503 article EN Caryologia 2017-05-23

The objective was to evaluate the efficacy of a single dose exogenous galectin-1 in improving pregnancy rate inseminated cows, comparing two groups (treatment and control Groups) into 107 contemporary (YG) established. An ultrasound exam determined performed 25 35 days after fixed-time artificial insemination (FTAI) breeding beef cows (n = 3469). that received eGAL-1 (200 ± 10 µg), with an intrauterine administration 1901), compared using conventional AI protocol 1568), both same YG. YGs...

10.3390/biom12030419 article EN cc-by Biomolecules 2022-03-09

Abstract Citrus canker type A is a serious disease caused by Xanthomonas citri subsp. ( X. ), which responsible for severe losses to growers and the citrus industry worldwide. To date, no canker-resistant genotypes are available, there limited information regarding molecular genetic mechanisms involved in early stages of development. Here, we present knowledge base transcriptome vivo interactome, CitrusKB. This first interactome database different cultivars, it was produced provide valuable...

10.1101/2020.03.19.997999 preprint EN cc-by-nc-nd bioRxiv (Cold Spring Harbor Laboratory) 2020-03-20

Abstract Galectins are mentioned in the literature as multifunctional molecules that participate several biological processes such adhesion, cell proliferation, and cycle, apoptosis, RNA processing, inflammatory process control, reproductive physiological mechanisms. Galectin-1 has been referred to a mediator involved prevention of early embryonic mortality mammals. Exogenous GAL-1 (eGAL-1) can be found Tolerana®. The objective study was evaluate whether eGAL-1 increase pregnancy rate when...

10.1101/2021.12.07.471574 preprint EN cc-by bioRxiv (Cold Spring Harbor Laboratory) 2021-12-07
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