Article
Plant Sciences
Pranjali A. Gedam, Dhananjay V. Shirsat, Thangasamy Arunachalam, Sourav Ghosh, Suresh J. Gawande, Vijay Mahajan, Amar Jeet Gupta, Major Singh
Summary: Waterlogging-tolerant onion genotypes were identified and evaluated in this study. The tolerant genotypes exhibited better growth and yield characteristics under stress conditions. These tolerant genotypes can be used for onion breeding programs.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Horticulture
Lei Qin, Huili Ma, Xu Zhang, Zhihui Zhang, Yong Wang
Summary: This study investigated the dynamics in metabolites and CSOs biosynthesis during onion bulb expansion by conducting metabolomic and transcriptomic analyses. The results showed that lipids, flavonoids, and amino acids mainly accumulated in the rapid-expansion stage of onion bulb, whereas alkaloids and phenolic acids accumulated in the late stage. Candidate genes involved in CSOs biosynthesis were also identified, providing a theoretical basis for the regulation of organosulfur compound synthesis in onion.
SCIENTIA HORTICULTURAE
(2023)
Article
Plant Sciences
Md. Ashraful Alam, Md. Atikur Rahman, Md. Marufur Rahman, Md. Mahmudul Hasan, Shamsun Naher, Abu Hena Faisal Fahim, Md. Abdul Mottalib, Srabanti Roy, Md. Rafiqul Islam, Shailendra Nath Mozumder, Amnah Mohammed Alsuhaibani, Ahmed Gaber, Akbar Hossain
Summary: Salt stress is a major obstacle in crop production, particularly for glycophytic crops like onions. Extensive research has been conducted to develop genotypes that are more resistant to salt stress. Multiple tolerant genotypes have been identified for mass production.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Green & Sustainable Science & Technology
Zahra Abbasi, Abdosattar Darabi, Jan Bocianowski
Summary: This study conducted an experiment on fifteen short day onion genotypes at two locations, Isfahan and Khuzestan, and evaluated them using multivariate methods. The results showed significant differences in the traits among locations, varieties, and the interaction between location and variety. Positive and negative correlations were found between various traits. The Saba and Behbahan improved population varieties were recommended for future crop improvement programs due to their high genetic diversity.
Article
Microbiology
Ram Dutta, K. Jayalakshmi, Sharath M. Nadig, Dalasanuru Chandregowda Manjunathagowda, Vishal S. Gurav, Major Singh
Summary: Onions are a valuable vegetable-spice crop in India but are susceptible to diseases caused by fungi, bacteria, viruses, and nematodes. Anthracnose, caused by Colletotrichum spp., is a major issue as it severely affects bulb production. Twister disease is a common problem in onion production, particularly in humid regions, reducing productivity and value. This review provides updated knowledge on onion anthracnose, including the pathogen, disease cycle, infection pathways, and management techniques to benefit growers.
Article
Plant Sciences
Pawan Mainkar, Tushar Kashinath Manape, Viswanathan Satheesh, Sivalingam Anandhan
Summary: This study reports the successful establishment of a CRISPR/Cas9-mediated genome editing protocol in onions, using the AcPDS gene as an example. Through transformation and cultivation of calli, different phenotypes were observed in regenerated shoots, with some exhibiting albino or chimeric characteristics. PCR and deep amplicon sequencing confirmed the successful editing of the AcPDS gene.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Horticulture
Christos Mouroutoglou, Anastasios Kotsiras, Georgia Ntatsi, Dimitrios Savvas
Summary: This study compared the effects of different soilless culture systems on the growth of a Greek landrace of sweet onion, finding that plants grown in FL and AG systems yielded the highest, while those in the NFT system had the lowest yield. The different systems affected root growth and nutrient uptake of the plants.
Article
Horticulture
Arshad Amir, Amit Baran Sharangi, Solanki Bal, Tarun Kumar Upadhyay, Mohd Suhail Khan, Irfan Ahmad, Nadiyah M. Alabdallah, Mohd Saeed, Umesh Thapa
Summary: This study investigated the genetic variability and diversity among 20 selected genotypes of red onions using a randomized complete block design. The results showed that certain traits of red onions had high heritability and genetic gain, indicating a strong genetic control. The study also identified a wide range of variations in qualitative traits. These findings are important for breeding programs and improving onion varieties.
Article
Green & Sustainable Science & Technology
Akkabathula Chandini Raj, Amit Baran Sharangi, Arpita Das, Krishnendu Pramanik, Tarun Kumar Upadhyay, Malak Almutairi, Mohammad Idreesh Khan, Irfan Ahmad, Mohd Adnan Kausar, Mohd Saeed
Summary: This study investigated the genetic variability and diversity of onion genotypes through morpho-physiological and molecular markers. Adequate genetic variability and moderate genetic diversity were found among the genotypes. The study facilitates the selection of diverse parents for future breeding programs.
Article
Plant Sciences
Xiaojie Li, Linjiao Cao, Bangbang Jiao, Haifeng Yang, Changsheng Ma, Yi Liang
Summary: The red color of onion bulbs is caused by anthocyanins, which are regulated by a protein called AcB2. AcB2 interacts with another protein called AcMYB1 to enhance the regulation of anthocyanin biosynthesis. This discovery provides a theoretical basis for breeding onions with higher anthocyanin contents.
HORTICULTURE RESEARCH
(2022)
Review
Plant Sciences
Kingsley Ochar, Seong-Hoon Kim
Summary: Onion is an important vegetable crop with numerous health-promoting properties. As climate change poses challenges to agriculture, the preservation and utilization of onion germplasm is crucial for sustainable agriculture and food security. Genetic diversity stored in global onion germplasm collections can be harnessed to develop climate-resistant varieties. Collaboration at international and inter-institutional levels is important for sharing and utilizing onion genetic resources to solve future agricultural challenges.
Review
Medicine, Research & Experimental
Manoj Kumar, Mrunal D. Barbhai, Muzaffar Hasan, Sneh Punia, Sangram Dhumal, Radha, Nadeem Rais, Deepak Chandran, R. Pandiselvam, Anjineyulu Kothakota, Maharishi Tomar, Varsha Satankar, Marisennayya Senapathy, T. Anitha, Abhijit Dey, Ali A. S. Sayed, Farouk M. Gadallah, Ryszard Amarowicz, Mohamed Mekhemar
Summary: Onion processing wastes like onion peel are rich sources of bioactive compounds that can be used in developing nutrient supplements and drugs. The review emphasizes the importance of onion peel as a health-promoting ingredient with various pharmacological effects.
BIOMEDICINE & PHARMACOTHERAPY
(2022)
Article
Plant Sciences
Ye-Rin Lee, Cheol Woo Kim, JiWon Han, Hyun Jin Choi, Koeun Han, Eun Su Lee, Do-Sun Kim, Jundae Lee, Muhammad Irfan Siddique, Hye-Eun Lee
Summary: Onion, a globally valuable vegetable crop, has a large genome and complex genetic characteristics. This study successfully constructed an onion genetic linkage map using GBS technology, identifying QTLs associated with sugar content across the genome, which will contribute to developing high sugar content cultivars.
Article
Plant Sciences
Tushar Kashinath Manape, Parakkattu S. Soumia, Yogesh P. Khade, Viswanathan Satheesh, Sivalingam Anandhan
Summary: A glossy mutant lacking an epicuticular wax layer was identified in the ?-irradiated M2 mutant population of the onion cultivar Bhima Super. The mutant displayed poor accumulation of wax crystals, primarily near the stomata. Gene expression analysis revealed downregulation of wax biosynthesis genes in the glossy mutant. These findings contribute to our understanding of wax biosynthesis in onions and provide a foundation for utilizing the glossy mutant trait for breeding programs.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Biotechnology & Applied Microbiology
Satoshi Fujito, Turgut Yigit Akyol, Takuya Mukae, Tadayuki Wako, Ken-ichiro Yamashita, Hikaru Tsukazaki, Hideki Hirakawa, Keisuke Tanaka, Yoko Mine, Shusei Sato, Masayoshi Shigyo
Summary: This study successfully associated numerous chromosome markers with unigene information through effective transcriptome analysis using unique Allium resources, resulting in a high-density A. cepa linkage map. The information on these unigene markers is valuable for genome sequencing and useful trait detection in Allium.
Article
Biochemical Research Methods
Olivia Angelin-Bonnet, Patrick J. Biggs, Samantha Baldwin, Susan Thomson, Matthieu Vignes
Article
Biochemical Research Methods
Elena Lopez-Girona, Marcus W. Davy, Nick W. Albert, Elena Hilario, Maia E. M. Smart, Chris Kirk, Susan J. Thomson, David Chagne
Article
Microbiology
Jibran Tahir, Cyril Brendolise, Stephen Hoyte, Marielle Lucas, Susan Thomson, Kirsten Hoeata, Catherine McKenzie, Andrew Wotton, Keith Funnell, Ed Morgan, Duncan Hedderley, David Chagne, Peter M. Bourke, John McCallum, Susan E. Gardiner, Luis Gea
Review
Plant Sciences
Jiffinvir Khosa, Francesca Bellinazzo, Rina Kamenetsky Goldstein, Richard Macknight, Richard G. H. Immink
Summary: Geophytes use a dual reproduction system to adapt to harsh climatic conditions, with the PEBP gene family playing a crucial role in regulating both types of reproduction. Differential expression and protein complex formation give unique functions to members of the PEBP gene family, mediating the crosstalk between the two reproductive events in geophytes.
JOURNAL OF EXPERIMENTAL BOTANY
(2021)
Article
Biochemistry & Molecular Biology
Samarth, Robyn Lee, Dave Kelly, Matthew H. Turnbull, Richard C. Macknight, Anthony M. Poole, Paula E. Jameson
Summary: Research on the alpine perennial herbaceous plant Celmisia lyallii (Asteraceae) found that warm summer conditions that promote flowering lead to differential regulation of genes, including promoters and repressors of flowering. Results suggest that plants may maintain a summer memory to induce flowering.
Article
Plant Sciences
Rowan Herridge, Samarth, Lynette Brownfield, Richard Macknight
Summary: The flowering of perennial ryegrass is crucial for both farmers and seed producers, as it affects metabolizable energy content and seed yield. Gene studies on flowering time regulation can provide insights into the growth and flowering processes of ryegrass.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Genetics & Heredity
Elizabeth Popowski, Susan J. Thomson, Mareika Knabel, Jibran Tahir, Ross N. Crowhurst, Marcus Davy, Toshi M. Foster, Robert J. Schaffer, D. Stuart Tustin, Andrew C. Allan, John McCallum, David Chagne
Summary: Commercially grown kiwifruit have different genomes, and using molecular resources can speed up breeding for green kiwifruit, through methods like marker-assisted selection. Additionally, a high-density linkage map constructed through genotyping-by-sequence successfully identified quantitative trait loci in hexaploid kiwifruit.
G3-GENES GENOMES GENETICS
(2021)
Article
Biochemistry & Molecular Biology
Samarth, Robyn Lee, Dave Kelly, Matthew H. Turnbull, Richard Macknight, Anthony M. Poole, Paula E. Jameson
Summary: A study on genes controlling flowering in masting plants found that a novel orthologue of TERMINAL FLOWER 1 promotes flowering induction. Global transcriptomic analysis indicated the importance of endogenous cues and epigenetic regulation in plants' responsiveness to initiate flowering.
Article
Plant Sciences
Soledad Perez-Santangelo, Nathanael Napier, Fran Robson, James L. Weller, Donna M. Bond, Richard C. Macknight
Summary: Plants use seasonal cues to initiate flowering at the optimal time for reproductive success, and this involves the integration of daily and seasonal cues with the circadian clock and light signals. Research on legume crops suggests that the phyA gene plays a crucial role in synchronizing the circadian clock and integrating light signals to precisely control the timing of flowering.
Article
Genetics & Heredity
Jibran Tahir, Ross Crowhurst, Simon Deroles, Elena Hilario, Cecilia Deng, Robert Schaffer, Liam Le Lievre, Cyril Brendolise, David Chagne, Susan E. Gardiner, Mareike Knaebel, Andrew Catanach, John McCallum, Paul Datson, Susan Thomson, Lynette R. Brownfield, Simona Nardozza, Sarah M. Pilkington
FRONTIERS IN GENETICS
(2022)
Article
Plant Sciences
Daniel A. Careno, Soledad Perez Santangelo, Richard C. Macknight, Marcelo J. Yanovsky
Summary: Circadian rhythms are regulated by a set of clock genes, and this study identified LSM1 and XRN4 as factors involved in mRNA decay pathway that affects clock function in plants.
PLANT AND CELL PHYSIOLOGY
(2022)
Article
Multidisciplinary Sciences
Somrutai Winichayakul, Richard Macknight, Liam Le Lievre, Zac Beechey-Gradwell, Robyn Lee, Luke Cooney, Hong Xue, Tracey Crowther, Philip Anderson, Kim Richardson, Xiuying Zou, Dorothy Maher, Gregory Bryan, Nick Roberts
Summary: This study demonstrates that perennial ryegrass engineered to accumulate high lipid in their leaves can enhance photosynthesis and growth under optimal conditions. However, the growth advantage is diminished in a dense canopy. The genetic regulatory network linking leaf lipid sinks and physiological changes remains unknown.
Article
Plant Sciences
Rowan Herridge, Tyler McCourt, Jeanne M. E. Jacobs, Peter Mace, Lynette Brownfield, Richard Macknight
Summary: Self-incompatibility is a characteristic of flowering plants, and grasses have a unique two-locus system to control self-recognition. By analyzing genome data from ryegrass and other grass species, it was found that DUF247 genes and SP/ZP genes are present at the S and Z loci in self-incompatibility species, acting as male and female components. These genes are highly variable, but key secondary structure features are conserved. The time of formation of specificity groups is related to the divergence of grass subfamilies.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Agronomy
Caitlin Harris, Madison Hall, Ruby Arrowfield, Rowan Herridge, Colin Eady, Richard Macknight, Lynette Brownfield
Summary: Perennial ryegrass, an important grass in temperate regions, has limited genetic improvement due to the self-incompatibility preventing inbreeding. However, a naturally occurring self-fertile (SF) locus has been identified, and this study successfully introduced it into an elite cultivar, producing a self-compatible population. Through genotyping-by-sequencing (GBS), researchers found that increased homozygosity did not necessarily affect growth and performance. This study concludes that self-compatible ryegrass can be a promising tool for hybrid breeding and agronomic improvement.
Article
Forestry
Rongmei Wu, Janine Cooney, Sumathi Tomes, Ria Rebstock, Sakuntala Karunairetnam, Andrew C. Allan, Richard C. Macknight, Erika Varkonyi-Gasic
Summary: The reduced expression of DAM/SVP genes in apple through RNAi resulted in plants that failed to enter dormancy, continued leaf growth, and exhibited precocious flowering. Changes in phytohormone composition, particularly increased levels of gibberellins and jasmonates, were observed in the transgenic plants, along with alterations in the expression of key genes related to flowering and dormancy.