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CRISPR-Cas-based plant genome engineering goes viral

Molecular Plant 2023年第4期16卷 660-661页

作者： jose-antonio daros Fabio Pasin Fernando Merwaiss Instituto de Biologia Molecular y Celular de Plantas(CSiC-Universitat Politecnica deValencia) 46022ValenciaSpain

Biotechnological advances in the field of plant biology based on the bacterial and archaeal CRiSPR-Cas systems promise a new generation of crop plants that are more productive and nutritive,resistant to pest and pathogens,and better adapted to environmental stresses.However,application of this technology in plants still encounters some burdens,especially related to the expression of the CRISPR-Cas reaction components in plant cells.

关键词： plant CRISPR adapted

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Stability of Soybean Genotypes and Their Classification into Relative Maturity Groups in Brazil

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American Journal of Plant Sciences 2013年第11期4卷 2060-2069页

作者： José Elzevir Cavassim Joao Carlos Bespalhok Filho Luis Fernando Alliprandini Ricardo Augusto de Oliveira Edelclaiton daros Edson Perez Guerra Department of Plant Science and Crop Protection Federal University of ParanaCuritibaBrazil State University of Center-West(Unicentro) GuarapuavaBrazil

The stability of soybean genotypes is very important in breeding programs for not only the evaluation, selection, and production of cultivars but also the establishment of parameters required for the classification of genotypes into relative maturity groups (RMG). The aim of this study was to define stable genotypes for traits, such as days to flowering, days to maturity, and length of the reproductive period, and to classify them into RMG. For this purpose, 20 commercial soybean cultivars were evaluated in 12 environments distributed in the major producing regions of Brazil. Assessments according to the Eberhart and Russell method and the additive main effects and multiplicative interaction (AMMI) method were effective in the identification of stable genotypes and their classification into RMG. These methods can also be used collectively for this purpose. Our results showed that the AMMI method led to a better interpretation of genotype-environment interactions. Thus, RMG obtained on the basis of stable genotypes represented a good estimate of the relative maturity of soybean crops throughout Brazil. *Corresponding author.

关键词： Glycine max. (L.) Merrill Genotype-Environment Interaction Eberhart and Russell Method AMMI

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Productive Performance of Wheat Based on Nitrogen Fertilization in Coverage

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American Journal of Plant Sciences 2015年第9期6卷 1587-1593页

作者： Michael Jonathan Fernandes Alves Wilson Wagner Ribeiro Teixeira Edelclaiton daros Luís César Cassol Joao Augusto Lopes Pascoalino Milton Ferreira de Moraes Department of Plant Science and Crop Protection Federal University of ParanaCuritibaBrazil Department of Soil Science Federal University of ParanáCuritibaBrazil University of ParanáFederal Technology Pato BrancoBrazil

The objective of this work was to evaluate genotypes of wheat depending on doses of N in order to determine the best value of N and the components of productivity of wheat. Experiment was carried out in Pato Branco—PR in soil classified as Eutrophic typical RED LATOSOL. The experimental design was randomized blocks, in 3 × 5 (× N doses genotypes), with three repetitions. The genotypes were: CD 108, CD 115 and BRS 220, and the doses of n were: zero;20;40;80 and 120 kg of N·ha-1, applied at the beginning of tillering. After harvest assessed number of Spike (NE), Tang (EC) length, grains per Spike (GE), mass of thousand grains (MMG), grain yield (R) and weight/HL (PH), application of N increased the NE and R, and however decreased to MMG. The genotypes differed among themselves, featuring better performance of the NE (the BRS 220), CE (the CD 115) and R (the CD 108). There were positive correlations between the doses of N with the NE and R and be-tween NE with the R, and negative correlation between doses of N with the MMG. It is concluded that the NE is the main factor that affects the R with N supply.

关键词： Triticum aestivum Grain Yield Nitrogen

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