- Plant Pathogens and Fungal Diseases
- Plant tissue culture and regeneration
- Soybean genetics and cultivation
- Insect-Plant Interactions and Control
- Plant-Microbe Interactions and Immunity
- Genetic diversity and population structure
- Biological Control of Invasive Species
- Genetics and Plant Breeding
- Growth and nutrition in plants
- Soil Management and Crop Yield
- Insect symbiosis and bacterial influences
- Mycorrhizal Fungi and Plant Interactions
- Phytoplasmas and Hemiptera pathogens
- Biofuel production and bioconversion
- Seed Germination and Physiology
- Environmental DNA in Biodiversity Studies
- Forest Insect Ecology and Management
- Agricultural Productivity and Crop Improvement
- Genomics and Phylogenetic Studies
- Fungal Biology and Applications
- Study of Mite Species
- Sunflower and Safflower Cultivation
- Zebrafish Biomedical Research Applications
- Peanut Plant Research Studies
- Plant responses to water stress
Manaaki Whenua – Landcare Research
2017-2023
Lincoln University
2016
Instituto Rio Grandense do Arroz
2009
Max Planck Institute of Colloids and Interfaces
2009
Fundace
2001
Fundação Jorge Duprat Figueiredo de Segurança e Medicina do Trabalho
1998
Human activities are accelerating rates of biological invasions and climate-driven range expansions globally, yet we understand little how genomic processes facilitate the invasion process. Although most literature has focused on underlying phenotypic correlates invasiveness, advances in technologies showing a strong link between variation success. Here, consider ability tools to (i) inform mechanistic understanding (ii) solve real-world issues predicting managing invasions. For both,...
The success of a genetic breeding program in certain period can be assessed by the gain observed. Genetic progress estimated from multi environmental trials (MET) data which are routinely carried out annual species programs for assessment new commercial cultivars. A set 20 years MET advanced soybean lines derived four was used to estimate and compare gains obtained three maturity groups (early, medium late) cropping regions State Rio Grande do Sul. yield ranged 0.0 71.5 kg ha-1 year-1 (3.49%...
O objetivo deste trabalho foi verificar se as cultivares de soja lançadas após 1990 para o Estado do Rio Grande Sul continham, nos grãos, teores proteína e óleo diferentes dos contidos grãos das em uso anteriormente a esse ano. Na safra 1996/97, realizado um estudo envolvendo genótipos produzidos três locais Sul. teor determinado pelo método Soxlet, proteína, Kjeldahl. A maior parte entre 1991 1996 apresentou menor que mais antigas. utilização União Industrial como genitores deve ter...
'Candidatus Liberibacter europaeus' (Leu) was described in Italy from Pyrus communis where it seemed to behave as an endophyte (Raddadi et al., 3). In November 2011, stunting and leaf chlorosis symptoms were observed on Cytisus scoparius (Scotch broom) Canterbury, New Zealand (NZ), leading the first record of Leu Scotch broom associated psyllid, Arytainilla spartiophila NZ (Thompson 5). To test for presence UK, a total 148 psyllids 52 plants sampled four sites Berkshire Surrey 2013, 2016,...
Biological control agents (BCA) are beneficial organisms that applied to protect plants from pests. Many fungi of the genus Trichoderma successful BCAs but underlying mechanisms not yet fully understood. cf. atroviride strain LU132 is a remarkably effective BCA compared T. LU140 these strains were found be highly similar at DNA sequence level. This unusual combination phenotypic variability and high similarity between separately isolated prompted us undertake genome comparison study in order...
Premise of the study: We developed simple sequence repeat (SSR) markers to facilitate population genetic studies on kānuka ( Kunzea spp.; Myrtaceae). Methods and Results: A shotgun sequencing library was constructed from leaf material K. robusta using a Roche 454 Junior sequencer, total 3174 putative SSR regions were identified. Sixteen polymorphic optimized for multiplex PCR 10 endemic New Zealand species. Each these loci cross‐amplified in all tested The amplified di‐, tri‐,...
Trichoderma cf atroviride is an endophytic soil fungus which has been the target of much research due to its plant growth promoting effects and use as a biocontrol agent. For specific bioactive strains this species be used with longlived forest trees such Pinus radiata they must persist over long term in host root system. To investigate persistence T roots P unique regions were identified genomes that more than 997 identical by using next generation sequencing. Based on these probebased...
Com o objetivo de avaliar comportamento cultivares soja diferentes ciclos, em semeaduras realizadas entre os dias 10 e 30 dezembro, na região do Planalto Médio Rio Grande Sul, foram conduzidos Cruz Alta, nos anos agrícolas 1994/95 a 1997/98, Passo Fundo, ensaios com cinco ciclo precoce, oito médio ciclos semitardio tardio. Os organizados blocos ao acaso, três repetições. Para evitar interferência plantas sobre as das parcelas vizinhas, essas separadas 1,0m, além eliminar-se uma fileira cada...
The genetic bases of in vitro organogenesis and precocious germination embryos immature wheat embryo culture were investigated using six Brazilian genotypes their F1, F2, BC1F1 BC2F1 generations a generation means analysis. Four parents one set F1’s also analyzed diallel experiment. results indicated complex gene action controlling both traits, with additive, dominant epistatic effects. High broad sense heritability values found, indicating determination. Considering the complexity control,...
The species Ranunculus acris L. (giant buttercup) is native to Europe but has a very large naturalised range in several countries. In New Zealand it serious weed of pasture, particularly high rainfall areas. Biological control options are being sought as chemical proven insufficient and leading resistance. To find efficient pathogens or natural enemies the search needs focus on areas origin material present Zealand. target biocontrol agents be broad enough include all R. haplotypes found...
Simple sequence repeat (SSR) markers were developed for the study of genetic diversity New Zealand Nassella trichotoma (Poaceae) and to support future studies in its native range.Genomic DNA was extracted from N. leaf material subjected Roche 454 sequencing. From a total 745 putative SSRs, 48 with di- pentanucleotide repeats screened, 32 primer pairs designed, 15 polymorphic optimized multiplex PCR on 105 samples four regions. Each locus resulted two six alleles per locus, loci...