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CAIXIA LAN Ravi Singh JULIO HUERTA_ESPINO Zaifeng Li Evans Lagudah sridhar bhavani (2022)
Article
Genetic Analysis Molecular Mapping Wheat Rusts APR Genes CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA ADULT PLANT RESISTANCE LANDRACES WHEAT RUSTS
Genomic regions associated with resistance to three rusts in CIMMYT wheat line “Mokue#1”
Naeela Qureshi Ravi Singh sridhar bhavani (2023)
Article
Genetic Analysis Leaf Rust CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA GENETICS RUSTS QUANTITATIVE TRAIT LOCI MAPPING DISEASE RESISTANCE STRIPE RUST STEM RUST
Wuletaw Tadesse Marion Harris Leonardo Abdiel Crespo Herrera Zakaria Kehel (2022)
Book part
Gene Introgression Insect Resistance CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA BREEDING GENETICS INSECT CONTROL
Fuai Sun XUECAI ZHANG Haoqiang Yu (2022)
Article
BZR1s CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA ARABIDOPSIS DNA BINDING PROTEINS PLANT PROTEIN TRANSCRIPTION FACTORS DROUGHT GENE EXPRESSION REGULATION GENETICS MAIZE METABOLISM TRANSGENIC PLANTS ABIOTIC STRESS
GIOVANNY COVARRUBIAS-PAZARAN Christian Werner Dorcus Gemenet (2023)
Article
Selection Strategies Reciprocal Recurrent Selection Dominance-Based Heterosis CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA GENETICS HETEROSIS MAIZE HYBRIDS FOOD SECURITY COMBINING ABILITY
Abiotic stress tolerance: Genetics, genomics, and breeding
Yunbi Xu Rajeev Varshney (2023)
Article
Wheat Ancestors Modern Varieties Agronomic Performance CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA ABIOTIC STRESS GENETICS GENOMICS BREEDING GERMPLASM DROUGHT STRESS
SERGIO GARCIA LAYNES VIRGINIA AURORA HERRERA VALENCIA Lilia Guadalupe Tamayo Torres VERONICA LIMONES BRIONES FELIPE ALONSO BARREDO POOL FRAY MARTIN BAAS ESPINOLA Ángel Gabriel Alpuche Solís CARLOS ALBERTO PUCH HAU SANTY PERAZA ECHEVERRIA (2022)
"WRKY transcription factors (TFs) play key roles in plant defense responses through phytohormone signaling pathways. However, their functions in tropical fruit crops, especially in banana, remain largely unknown. Several WRKY genes from the model plants rice (OsWRKY45) and Arabidopsis (AtWRKY18, AtWRKY60, AtWRKY70) have shown to be attractive TFs for engineering disease resistance. In this study, we isolated four banana cDNAs (MaWRKY18, MaWRKY45, MaWRKY60, and MaWRKY70) with homology to these rice and Arabidopsis WRKY genes. The MaWRKY cDNAs were isolated from the wild banana Musa acuminata ssp. malaccensis, which is resistant to several diseases of this crop and is a progenitor of most banana cultivars. The deduced amino acid sequences of the four MaWRKY cDNAs revealed the presence of the conserved WRKY domain of ~60 amino acids and a zinc-finger motif at the N-terminus. Based on the number of WRKY repeats and the structure of the zinc-finger motif, MaWRKY18 and MaWRKY60 belong to group II of WRKY TFs, while MaWRKY45 and MaWRKY70 are members of group III. Their corresponding proteins were located in the nuclei of onion epidermal cells and were shown to be functional TFs in yeast cells. Moreover, expression analyses revealed that the majority of these MaWRKY genes were upregulated by salicylic acid (SA) or methyl jasmonate (MeJA) phytohormones, although the expression levels were relatively higher with MeJA treatment. The fact that most of these banana WRKY genes were upregulated by SA or MeJA, which are involved in systemic acquired resistance (SAR) or induced systemic resistance (ISR), respectively, make them interesting candidates for bioengineering broad-spectrum resistance in this crop."
Article
Banana Transcription factor WRKY Defense phytohormones Salicylic acid Methyl jasmonate SAR ISR Broad-spectrum resistance BIOLOGÍA Y QUÍMICA CIENCIAS DE LA VIDA GENÉTICA GENÉTICA
CARLOS ABRAHAM GUERRERO RUIZ (2017)
Vibrio parahaemolyticus is an important human pathogen that has been isolated worldwide from clinical cases, most of which have been associated with seafood consumption. Environmental and clinical toxigenic strains of V. parahaemolyticus that were isolated in Mexico from 1998 to 2012, including those from the only outbreak that has been reported in this country, were characterized genetically to assess the presence of the O3:K6 pandemic clone, and their genetic relationship to strains that are related to the pandemic clonal complex (CC3). Pathogenic tdh+ and tdh+/trh+ strains were analyzed by pulsed-field gel electrophoresis (PFGE) and multilocus sequence typing (MLST). Also, the entire genome of a Mexican O3:K6 strain was sequenced. Most of the strains were tdh/ORF8-positive and corresponded to the O3:K6 serotype. By PFGE and MLST, there was very close genetic relationship between ORF8/O3:K6 strains, and very high genetic diversities from non-pandemic strains. The genetic relationship is very close among O3:K6 strains that were isolated in Mexico and sequences that were available for strains in the CC3, based on the PubMLST database. The whole-genome sequence of CICESE-170 strain had high similarity with that of the reference RIMD 2210633 strain, and harbored 7 pathogenicity islands, including the 4 that denote O3:K6 pandemic strains. These results indicate that pandemic strains that have been isolated in Mexico show very close genetic relationship among them and with those isolated worldwide. © 2017 Guerrero et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Article
Article, bacterial strain, biofouling, controlled study, Crassostrea, food intake, gene sequence, genetic analysis, genetic variability, Japan, Mexican, Mexico, molecular phylogeny, nonhuman, pandemic, pathogenicity island, sea food, serotyping, toxi BIOLOGÍA Y QUÍMICA CIENCIAS DE LA VIDA GENÉTICA GENÉTICA
Adrián Andrés Morales Guadarrama (2024)
El ostión Magallana gigas es ampliamente cultivado a nivel mundial. En Baja California, México, los laboratorios de reproducción deben acondicionar ostiones para su maduración y producción de gametos, y abastecer de semilla a los productores. En nuestro laboratorio, Sistemas de Recirculación Acuícola (SRA), con control del sistema CO2-Carbonatos (SRA-R) o sin control (SRA-C), han permitido madurar ostiones M. gigas y M. sikamea. Recientemente, los ostiones M. gigas acondicionados en nuestros SRA no maduraron, y algunos presentaron prevalencia de polidóridos (PP), poliquetos parásitos excavadores de concha. Para comprender la condición de los ostiones, evaluamos el efecto del SRA y de la PP sobre la expresión relativa de ocho genes asociados a biomineralización (VpATP y Tyr), inmunidad innata (P38, PGRP-L y TLR2) y reproducción (GnRH-RI, Vasa-like y SP1b) de M. gigas en dos etapas del acondicionamiento, 18 °C y 24 °C. La PP se determinó por la presencia de ampollas en la concha. Mediante RT-qPCR se determinó la expresión de VpATP, Tyr, P38, PGRP-L y TLR2 en el manto, y de GnRH-RI, Vasa-like y SP1b en la gónada. La expresión relativa se evaluó con un enfoque estadístico basado en un análisis Bayesiano de dos vías y comparaciones múltiples, p-valor significativo < 0.05 y corrección de Bonferroni. En 18 °C, la expresión de VpATP, Tyr, TLR2 y P38 fue mayor en ostiones con PP (CPP) que sin PP (SPP). En contraste, la expresión de GnRH-RI, Vasa-like y SP1b fue menor CPP que SPP. Dentro del SRA-C, en los ostiones CPP hubo mayor expresión de Tyr y menor expresión de Vasa-like y SP1b, respecto a los ostiones SPP. Esto sugiere que la PP induce la reparación de la concha y las respuestas inmune e inflamatoria en el manto mientras que en la gónada reduce el desarrollo de las células germinales. En 24 °C, en el SRA-R hubo menor expresión de SP1b respecto del SRA-C y sugiere menor división celular en la gónada. En conclusión, el SRA-R y la PP afectaron el balance energético del ostión japonés, limitando la energía y reflejando menor esfuerzo reproductivo en los ostiones del SRA-R al final del acondicionamiento reproductivo.
The Japanese oyster (Magallana gigas) is highly cultured worldwide. In Baja California, Mexico, the reproduction laboratories must condition oysters to maturity and have gametes to supply oyster seeds to producers. In our laboratory, recirculating aquaculture systems (RAS), with control of the CO2-Carbonate system (RAS-R) and without this control (RAS-C), have allowed oysters M. gigas and M. sikamea to mature. Recently, the M. gigas oysters conditioned in our RAS did not mature, and some have the prevalence of Polidorids (PP), shell-boring polychaete parasites. To understand the oysters' condition, we evaluated the effect of RAS and the PP on the relative expression of eight genes associated with biomineralization (VpATP and Tyr), innate immunity (P38, PGRP-L, and TLR2), and reproduction (GnRH-RI, Vasa-like, and SP1b) of M. gigas at two phases of broodstock conditioning, 18 °C and 24 °C. The PP was determined by mud blisters at the inner oyster shell. RT-qPCR determined the expression of VpATP, Tyr, p38, PGRP-L, and TLR2 in the mantle tissue and GnRH-RI, Vasa-like, and SP1b in the gonad tissue. The relative gene expression was evaluated by a Bayesian statistics frame based on a two-way and multiple comparison analysis, with significant p-value < 0.05 and Bonferroni correction. At 18 °C, there was higher expression of VpATP, Tyr, TLR2, and P38 in oysters with PP (WPP) than without PP (WOPP). In contrast, the expression of GnRH-RI, Vasa-like, and SP1b was less WPP than WOPP. It suggests that the PP induces shell repair and immune and inflammatory responses in mantle tissue, while in gonad tissue, it reduces the development of germinal cells. At 24 °C, in RAS-R, there was less expression of SP1b respect RAS-C, and it suggests less cellular division in the gonad. In conclusion, the RAS-R and the PP affect the energetic balance of the Japanese oyster, limiting the energy and reflecting less reproduction effort in oysters from RAS-R at the end of broodstock conditioning.
Master thesis
SRA, biomineralización, Vasa-like, Tyr, ostión RAS, biomineralization, Vasa-like, Tyr, oyster BIOLOGÍA Y QUÍMICA CIENCIAS DE LA VIDA GENÉTICA CITOGENÉTICA ANIMAL CITOGENÉTICA ANIMAL
Guifang Lin Hui Chen Bin Tian Sunish Sehgal Jingzhong Xie Philomin Juliana Narinder Singh Sandesh Kumar Shrestha Ravi Singh Harold Trick Jesse Poland Robert Bowden guihua bai bikram gill (2022)
Article
CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA ALLELES CLONES GENE EXPRESSION GRASSES MUTATION RUSTS WHEAT BASIDIOMYCOTA DISEASE RESISTANCE GENETICS MOLECULAR CLONING PLANT BREEDING PLANT DISEASES