A5086599934- Plant Physiology and Cultivation Studies
- Plant Pathogens and Fungal Diseases
- Horticultural and Viticultural Research
- Plant Reproductive Biology
- Fungal Plant Pathogen Control
- Postharvest Quality and Shelf Life Management
- Berry genetics and cultivation research
- Banana Cultivation and Research
- Plant Disease Resistance and Genetics
- Plant Disease Management Techniques
- Agricultural Practices and Plant Genetics
- Powdery Mildew Fungal Diseases
- Insect-Plant Interactions and Control
- Plant Molecular Biology Research
- Plant Pathogenic Bacteria Studies
- Plant Gene Expression Analysis
- Botanical Studies and Applications
- Plant-Microbe Interactions and Immunity
- Plant pathogens and resistance mechanisms
- Forest Insect Ecology and Management
- Plant Surface Properties and Treatments
- Entomological Studies and Ecology
- Tree Root and Stability Studies
- Garlic and Onion Studies
- Wheat and Barley Genetics and Pathology
Plant & Food Research
2003-2024
Motu Economic and Public Policy Research
2017
Planta
2013-2014
Nelson Hospital
2000
We present a draft assembly of the genome European pear (Pyrus communis) 'Bartlett'. Our was developed employing second generation sequencing technology (Roche 454), from single-end, 2 kb, and 7 kb insert paired-end reads using Newbler (version 2.7). It contains 142,083 scaffolds greater than 499 bases (maximum scaffold length 1.2 Mb) covers total 577.3 Mb, representing most expected 600 Mb Pyrus genome. A 829,823 putative single nucleotide polymorphisms (SNPs) were detected re-sequencing...
Summary Variation in anthocyanin biosynthesis pear fruit provides genetic germplasm resources for breeding, while dwarfing is an important agronomic trait, which beneficial to reduce the management costs and allow implementation of high‐density cultivation. Here, we combined bulked segregant analysis (BSA), quantitative trait loci (QTL), structural variation (SV) identify a 14‐bp deletion caused frame shift mutation resulted premature translation termination B‐box (BBX) family zinc...
Understanding of genetic diversity and marker-trait relationships in pears (Pyrus spp.) forms an important part gene conservation cultivar breeding. Accessions Asian European pear species, interspecific hybrids were planted a common garden experiment. Genotyping-by-sequencing (GBS) was used to genotype 214 accessions, which also phenotyped for fruit quality traits. A combination selection scans association analyses identify signatures selection. Patterns diversity, population structure...
We have used new generation sequencing (NGS) technologies to identify single nucleotide polymorphism (SNP) markers from three European pear (Pyrus communis L.) cultivars and subsequently developed a subset of 1096 SNPs into high throughput by combining them with the set 7692 apple on IRSC Infinium® II 8K array. then evaluated this 9K SNP array for large-scale genotyping in across several species, using both SNPs. The segregating populations employed validation included population ('Old...
Interspecific pear (Pyrus spp.) hybrid populations are often used to develop novel cultivars. Pear cultivar breeding is a lengthy process because of long juvenility and the subsequent time required for reliable fruit phenotyping. Molecular techniques such as genome-wide association (GWA) genomic selection (GS) provide an opportunity fast-forward development high-value We evaluated genetic architecture 10 phenotypes (including sensory traits) potential GS using genotyping-by-sequencing 550...
The unattractive appearance of the surface pear fruit caused by postharvest disorder friction discolouration (FD) is responsible for significant consumer dissatisfaction in markets, leading to lower returns growers. Developing an understanding genetic control FD essential enable full application genomics-informed breeding development new cultivars. Biochemical constituents [phenolic compounds and ascorbic acid (AsA)], polyphenol oxidase (PPO) activity, as well skin anatomy, have been...
Deleterious epistatic interactions in plant inter- and intraspecific hybrids can cause a phenomenon known as hybrid necrosis, characterized by typical seedling phenotype whose main distinguishing features are dwarfism, tissue necrosis some cases lethality. Identification of the chromosome regions associated with this type incompatibility is important not only to increase our understanding evolutionary diversification that led speciation but also for breeding purposes. Development molecular...
Red skin colour is an important target trait in various pear breeding programmes. In this study, the genetic control of red was investigated interspecific population derived using descendants sport European cultivar 'Max Bartlett' (MRB) and red-blushed Chinese 'Huobali'. Approximately 550 seedlings from nine families were phenotyped for over-colour coverage (Ocolcov) intensity (Ocolint) on a 0-9 scale, genotyped genotyping-by-sequencing. Genome-wide association analyses conducted 7500...
With 3 figures and tables Abstract Previous studies have demonstrated that genotypes of PpACS1 PpACS2 genes are associated with certain levels ethylene production in Japanese pears ( Pyrus pyrifolia Nakai). This study was undertaken to examine further the relationships internal concentration (IEC) fruit firmness/softening both European P. communis L.) Our data showed L. lacked ‘AB’/‘Ab’ ‘aB’, for high medium IEC respectively, irrespective found pear cultivars/selections. were related at 20...
Runs of homozygosity (ROH) have been widely used to study population history and trait architecture in humans livestock species, but their application self-incompatible plants has not reported. The distributions ROH 199 accessions representing Asian pears (45), European (109), interspecific hybrids (45) were investigated using genotyping-by-sequencing this study. Fruit phenotypes including fruit weight, firmness, Brix, titratable acidity, flavor volatiles measured for genotype-phenotype...
Abstract The genetic diversity of scab (Venturia inaequalis (Cke.) Wint.) resistance was studied on two the four sublines HortResearch Apple Genetics Population. Subline 91 consisted 214 families and evaluated in its 6th leaf, subline 94 75 3rd leaf at Havelock North. A total 253 were derived from open‐pollinated seed apple cultivars (Malus × domestica Borkh.), as well crabapples spp.) various countries, including 52 collected Kazakstan. other 36 resulted controlled crosses. Seedlings sites...
Abstract The genetics of resistance to Venturia pirina was investigated from 2002 2004 on 11 families derived interspecific crosses between European and Asian pear species. Nearly complete leaf V. identified in all progeny with at least 50% (Pyrus pyrifolia and/or Pyrus × bretschneideri) ancestry, but up 26% these trees exhibited fruit scab incidence any one three years. However, 67% 80% the resistant individuals had russet spotting owing infection or more years over duration trial 14% 36%...