Article
Horticulture
Anze Svara, Kristina Ilnikar, Sebastien Carpentier, Nico De Storme, Barbara De Coninck, Wannes Keulemans
Summary: Apple production is significantly affected by apple scab disease caused by the fungus Venturia inaequalis. Breeding for polyploid cultivars could enhance resistance of apple cultivars against different V. inaequalis isolates. The role of polyploidy in conferring resistance to biotic challenges is plant-pathogen-specific.
SCIENTIA HORTICULTURAE
(2021)
Article
Agronomy
Lior Gur, Keren Levy, Amotz Farber, Omer Frenkel, Moshe Reuveni
Summary: QoI fungicides were introduced in Israel in 1997 for apple scab control, with resistance observed only after 14 years of use, mainly in northern Israel since 2011. Resistance is related to limited fungicidal sprays and confirmed through molecular-based studies. Growers are now advised to use tank mixtures of systemic fungicides for effective management.
Article
Plant Sciences
Amanda Karlstrom, Antonio Gomez-Cortecero, Charlotte F. Nellist, Matthew Ordidge, Jim M. Dunwell, Richard J. Harrison
Summary: This study identifies the first QTL associated with resistance to Neonectria ditissima in apple scion germplasm. The results show that the QTL present in commonly used apple breeding germplasm have a low to medium effect on resistance to N. ditissima. Therefore, multiple QTL need to be considered to improve resistance through breeding.
Article
Agronomy
Andreas Peil, Nicholas P. Howard, Simone Buhlmann-Schutz, Ines Hiller, Henk Schouten, Henryk Flachowsky, Andrea Patocchi
Summary: The apple scab resistance genes Rvi4 and Rvi15, which are mapped to a similar region on linkage group 2, were found to be the same gene that elicits a hypersensitive response. This discovery has great significance in apple breeding.
MOLECULAR BREEDING
(2023)
Article
Biotechnology & Applied Microbiology
Zhi-Wen Qiao, Da-Ru Wang, Xun Wang, Chun-Xiang You, Xiao-Fei Wang
Summary: This study identified 30 cyclophilin genes in the 'Golden Delicious' apple genome and categorized them into three clades. The analysis also revealed the involvement of MdCYP16 as a nuclear-localized MD cyclophilin in response to salt and drought stress in apple. The research provides valuable insights into the apple cyclophilin gene family and offers candidate genes for stress response in apple.
Article
Plant Sciences
Qiulei Zhang, Yuanhua Wang, Haiyang Wei, Wenqi Fan, Chaoran Xu, Tianzhong Li
Summary: The study identified that MdRNL2 and MdRNL6 in apple interact through their NB-ARC domains, crucial for resistance to fungal diseases. Transgenic apple plants with suppressed MdRNL6 expression showed hypersensitivity to various fungal diseases, similar to the effects seen when MdRNL2 expression was suppressed. This finding highlights the importance of MdRNL2 and MdRNL6 in broad-spectrum fungal resistance in apple.
Article
Plant Sciences
Anna Wallis, Isabella M. Yannuzzi, Mei-Wah Choi, John Spafford, Matthew Fenn, Padmini Ramachandran, Ruth Timme, James B. Pettengill, Robin Cagle, Andrea Ottesen, Kerik D. Cox
Summary: The study investigated the distribution of streptomycin-resistant Erwinia amylovora strains in major apple production regions of New York over the past 6 years, revealing a few cosmopolitan strains and novel CRISPR profile diversity across regions. Streptomycin-resistant E. amylovora was detected in a small area and associated with specific CRISPR profile, suggesting the original strain was not fully eradicated and went undetected due to low disease pressure.
Article
Plant Sciences
Yiru Si, Bishnu P. Khanal, Oliver K. Schlueter, Moritz Knoche
Summary: The pattern of cuticle deposition is crucial in managing strain buildup in fruit cuticles. Recent evidence suggests a strain gradient within apple fruit cuticle, with outer layers being more strained and prone to microcracking. The deposition of cutin primarily occurs on the inner surface of the cuticle, resulting in a radial gradient in cuticular age.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Horticulture
Yiru Si, Bishnu P. Khanal, Moritz Knoche
Summary: Microscopic cracks are causative in fruit skin disorders of apple, while deposition of cuticle can reduce these cracks. Feeding C-13-labeled oleic acid to developing apple fruit surface results in rapid incorporation, with some cultivars showing higher incorporation. The rate of incorporation decreases over time during fruit development.
SCIENTIA HORTICULTURAE
(2021)
Article
Agronomy
DoSu Park, Yosef Al Shoffe, Burak E. Algul, Christopher B. Watkins
Summary: The effects of low oxygen partial pressures on metabolism and fermentation-related gene expression in different apple varieties were investigated. It was found that the response to oxygen levels varied among different apple varieties.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2022)
Article
Plant Sciences
Amanda Karlstrom, Matevz Papp-Rupar, Tom A. J. Passey, Greg Deakin, Xiangming Xu
Summary: The composition of bacterial and fungal endophytes within the phyllosphere of apple trees is influenced by host genetics and environment. A study on apple trees infected with the fungal pathogen Neonectria ditissima showed that multiple loci have a significant effect on the abundance of individual endophytic taxa. Some of these loci are associated with tolerance to Neonectria ditissima. These findings suggest that apple endophyte composition has a genetic basis and can be modified through breeding.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Food Science & Technology
Caiping Huang, Bangzhu Peng
Summary: A high-performance nitrogen-doped chitosan-TiO2 nanocomposite was successfully prepared by a simple precipitation method and showed significant photocatalytic activities for the degradation of patulin in apple juice. The nanocomposite effectively degraded patulin within 35 minutes under ultraviolet irradiation, with little impact on the quality of apple juice.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2021)
Article
Horticulture
Boyang Liu, Yuxing Li, Xiuzhi Zhang, Yutong Liu, Chenlu Liu, Hongtao Wang, Shiying Ren, Fengwang Ma, Wei Liang, Cuiying Li
Summary: The application of exogenous gamma-aminobutyric acid (GABA) can improve apple resistance to Marssonina apple blotch by reducing disease severity and maintaining normal photosynthesis. Additionally, GABA can induce the production of some disease-resistant substances in apple plants, such as salicylic acid and chitinase. Therefore, soil drenching of GABA may be a promising strategy to control the prevalence of Marssonina apple blotch.
SCIENTIA HORTICULTURAE
(2022)
Article
Horticulture
S. Crespo-Martinez, O. Oneka, M. J. Laquidain, J. Urrestarazu, L. G. Santesteban, C. Miranda
Summary: This study investigated the reproductive biology of traditional apple cultivars in the Basque-style cider-producing area in northern Spain. The results showed that some varieties have good pollen quality, while others are not suitable for self-pollination. Furthermore, the study identified rare S26 and novel S60 alleles in the region. These findings will contribute to improving orchard management and increasing potential yields.
SCIENTIA HORTICULTURAE
(2023)
Article
Plant Sciences
Simon Miranda, Stefano Piazza, Floriana Nuzzo, Mingai Li, Jorge Lagreze, Axel Mithoefer, Alessandro Cestaro, Danuse Tarkowska, Richard Espley, Andrew Dare, Mickael Malnoy, Stefan Martens
Summary: The effects of targeting the key gene MdPGT1 involved in phloridzin biosynthesis in apple using conventional transgenesis and CRISPR/Cas9-mediated genome editing were simultaneously assessed. Knockdown lines showed impaired growth and leaf morphology, while genome-edited lines exhibited normal growth despite reduced phloridzin levels. Transcriptomic and metabolic analyses revealed regulated genes involved in phenylpropanoid and flavonoid pathways. Phytohormone profiling demonstrated differential modulation, with increased salicylic and jasmonic acid levels in dwarf lines and no correlation between auxin and ABA with growth phenotype.
Article
Biotechnology & Applied Microbiology
Hui-Min Jia, Hui-Juan Jia, Qing-Le Cai, Yan Wang, Hai-Bo Zhao, Wei-Fei Yang, Guo-Yun Wang, Ying-Hui Li, Dong-Liang Zhan, Yu-Tong Shen, Qing-Feng Niu, Le Chang, Jie Qiu, Lan Zhao, Han-Bing Xie, Wan-Yi Fu, Jing Jin, Xiong-Wei Li, Yun Jiao, Chao-Chao Zhou, Ting Tu, Chun-Yan Chai, Jin-Long Gao, Long-Jiang Fan, Eric van de Weg, Jun-Yi Wang, Zhong-Shan Gao
PLANT BIOTECHNOLOGY JOURNAL
(2019)
Article
Biotechnology & Applied Microbiology
Zena J. Rawandoozi, Timothy P. Hartmann, Silvia Carpenedo, Ksenija Gasic, Cassia da Silva Linge, Lichun Cai, Eric Van de Weg, David H. Byrne
Article
Biochemistry & Molecular Biology
Alice Feurtey, Ellen Guitton, Marie De Gracia Coquerel, Ludovic Duvaux, Jason Shiller, Marie-Noelle Bellanger, Pascale Expert, Melanie Sannier, Valerie Caffier, Tatiana Giraud, Bruno Le Cam, Christophe Lemaire
Article
Forestry
Marijn Rymenants, Eric van de Weg, Annemarie Auwerkerken, Inge De Wit, Andrzej Czech, Bart Nijland, Henri Heuven, Nico De Storme, Wannes Keulemans
TREE GENETICS & GENOMES
(2020)
Correction
Forestry
Marijn Rymenants, Eric van de Weg, Annemarie Auwerkerken, Inge De Wit, Andrzej Czech, Bart Nijland, Henri Heuven, Nico De Storme, Wannes Keulemans
TREE GENETICS & GENOMES
(2021)
Article
Plant Sciences
Ting Ngoot-Chin, Muhammad Azwan Zulkifli, Eric van de Weg, Noorhariza Mohd Zaki, Norhalida Mohamed Serdari, Suzana Mustaffa, Mohd Isa Zainol Abidin, Nik Shazana Nik Mohd Sanusi, Marinus J. M. Smulders, Eng Ti Leslie Low, Maizura Ithnin, Rajinder Singh
Summary: Karyotyping using high-density genome-wide SNP markers in oil palm identified various chromosomal aberrations, with supporting evidence from 2C DNA content measurements and chromosome counts, providing valuable insights for breeding and genetic research in oil palm.
Article
Biotechnology & Applied Microbiology
Nicholas P. Howard, Michela Troggio, Charles-Eric Durel, Helene Muranty, Caroline Denance, Luca Bianco, John Tillman, Eric van de Weg
Summary: This study assessed the concordance and accuracy of Illumina Infinium and Affymetrix Axiom SNP array data in apple genomes. The majority of the data was found to be compatible, although intense data filtering and curation were required for data integration. This in-depth analysis may provide valuable insights for future work on SNP array data integration and interpretation, as well as for probe/platform development.
Article
Biotechnology & Applied Microbiology
Zena J. Rawandoozi, Timothy P. Hartmann, Silvia Carpenedo, Ksenija Gasic, Cassia da Silva Linge, Lichun Cai, Eric Van de Weg, David H. Byrne
Summary: This study validated major QTLs for three key phenological traits through a multiple pedigree-linked families approach. Haplotype characterization of genomic regions differentiated this study from previous QTL studies. The results provide peach breeders with haplotypes for three BD QTLs and one RD/FDP QTL to create predictive DNA-based molecular marker tests for selecting desired QTL alleles in early seedling stages.
Article
Forestry
Joukje Buiteveld, Herma J. J. Koehorst-van Putten, Linda Kodde, Ivo Laros, Giorgio Tumino, Nicholas P. Howard, Eric van de Weg, Marinus J. M. Smulders
Summary: The field genebank collection of European wild apple in the Netherlands was found to be mainly composed of pure M. sylvestris accessions, with about 29% of the accessions showing close genetic relationships. The study suggests that the collection should be managed as a single unit to prevent bias in allele frequencies in the seeds.
TREE GENETICS & GENOMES
(2021)
Article
Plant Sciences
Nicholas P. Howard, Cameron Peace, Kevin A. T. Silverstein, Ana Poets, James J. Luby, Stijn Vanderzande, Charles-Eric Durel, Helene Muranty, Caroline Denance, Eric van de Weg
Summary: Pedigree information is crucial in breeding programs, but many individuals have unknown pedigrees. This study developed a method using shared haplotype lengths to support complex pedigree reconstruction, which is valuable for identifying unknown relationships.
HORTICULTURE RESEARCH
(2021)
Article
Plant Sciences
Valerie Caffier, Jason Shiller, Marie-Noelle Bellanger, Jerome Collemare, Pascale Expert, Pierre Gladieux, Claire Pascouau, Melanie Sannier, Bruno Le Cam
Summary: Hybridization and adaptation to new hosts are important mechanisms of fungal disease emergence. Evaluating the risk of emergence of hybrids with enhanced virulence is crucial for sustainable crop disease management. In this study, the risk of hybridization and its effect on pathogenicity were evaluated in Venturia inaequalis, the fungus responsible for scab disease on Rosaceae hosts. The results showed that there is strict host specificity between isolates from different hosts, but some isolates were still able to cause disease on new hosts. Interestingly, none of the hybrids between different isolates could infect apple, suggesting a potential novel biocontrol strategy.
Article
Multidisciplinary Sciences
Kevin Fontaine, Celine Fourrier-Jeandel, Andrew D. Armitage, Anne-Laure Boutigny, Manuela Crepet, Valerie Caffier, Dossi Carine Gnide, Jason Shiller, Bruno Le Cam, Michel Giraud, Renaud Ioos, Jaime Aguayo
Summary: Leaf blotch caused by Alternaria spp. is a common disease in apple-producing regions, with the apple pathotype being characterized by the production of a host-selective toxin (HST). French orchards were found to have Alternaria isolates belonging to A. arborescens SC or A. alternata, without the apple pathotype present. The pathogenicity test revealed that Golden Delicious apples are more susceptible to Alternaria leaf blotch.
Review
Plant Sciences
Amy F. Iezzoni, Jim McFerson, James Luby, Ksenija Gasic, Vance Whitaker, Nahla Bassil, Chengyan Yue, Karina Gallardo, Vicki McCracken, Michael Coe, Craig Hardner, Jason D. Zurn, Stan Hokanson, Eric van de Weg, Sook Jung, Dorrie Main, Cassia da Silva Linge, Stijn Vanderzande, Thomas M. Davis, Lise L. Mahoney, Chad Finn, Cameron Peace
HORTICULTURE RESEARCH
(2020)
Meeting Abstract
Horticulture
Zena Rawandoozi, Timothy P. Hartmann, Ksenija Gasic, Cassia Da Silva Linge, Lichun Cai, Nahla Bassil, Eric van de Weg, David H. Byrne
Meeting Abstract
Horticulture
Zena Rawandoozi, Timothy P. Hartmann, Ksenija Gasic, Cassia Da Silva Linge, Lichun Cai, Nahla Bassil, Eric van de Weg, David H. Byrne