Article
Agronomy
Linyi Qiao, Xiaojun Zhang, Xin Li, Zujun Yang, Rui Li, Juqing Jia, Liuling Yan, Zhijian Chang
Summary: Several key genomic regions and quantitative trait loci (QTLs) influencing wheat plant height and yield were identified, allowing for the optimization of wheat plant height by selecting favorable alleles from these loci.
MOLECULAR BREEDING
(2022)
Article
Forestry
Yang Zhou, Yuanjun Ye, Lu Feng, Ye Zhang, Qifang Lin, Jieru Liu, Ming Cai, Jia Wang, Tangren Cheng, Qixiang Zhang, Huitang Pan
Summary: Using 188 BC2 progenies, a genetic linkage map for Lagerstroemia was constructed to analyze QTLs related to plant architecture traits. The study provides a scientific basis for fine mapping genes and marker-assisted breeding in Lagerstroemia.
Article
Agronomy
Lingping Kong, Yanping Wang, Liyu Chen, Ran Fang, Yaru Li, Chao Fang, Lidong Dong, Xiaohui Yuan, Fanjiang Kong, Baohui Liu, Qun Cheng, Sijia Lu
Summary: In this study, we identified multiple QTLs associated with plant height and node number in soybean. We found two genomic regions that overlap with known genes Dt1 and Dt2, which regulate both traits. Furthermore, by combining specific alleles, we were able to breed soybean plants with ideal architecture, shorter main stems and more nodes.
MOLECULAR BREEDING
(2023)
Article
Horticulture
Yang Zhou, Yiqian Ju, Xiufeng Chi, Ping Shen, Ye Zhang, Ming Cai, Tangren Cheng, Jia Wang, Qixiang Zhang, Huitang Pan
Summary: Plant height is determined by the internode length, which is regulated by D-type cyclin (CYCD) genes. However, the regulatory mechanism of CYCDs in woody plants is still unclear. In this study, LfiCYCD3;1, LfiCYCD5;1, and LfiCYCD6;1 were identified in crape myrtle, and their expression levels were positively correlated with internode length.
SCIENTIA HORTICULTURAE
(2023)
Article
Agronomy
Wei Xue, Lin Huang, Wei-Jia Sheng, Jia-Tao Zhu, Shu-Qi Li, Fei-Hai Yu
Summary: This study investigated the response of two stoloniferous clonal plants to plant-soil feedbacks, and found that biotic plant-soil feedbacks differed among different species and physically-connected ramets of the same clone. Moreover, physiological integration or plasticity in stolon internode lengths could not help Hydrocotyle vulgaris alleviate the negative effects of plant-soil feedbacks.
Article
Agronomy
Yating Zhao, Shuai Zhang, Yanjie Lv, Fangfang Ning, Yibing Cao, Shuhua Liao, Pu Wang, Shoubing Huang
Summary: Exogenous plant growth retardants can increase maize yield and lodging resistance by optimizing application timing, especially in lodging-prone conditions. Lodging can affect maize yield, so selecting appropriate PGRs to improve yield and lodging resistance should be considered in practice.
FIELD CROPS RESEARCH
(2022)
Article
Plant Sciences
Jianbo Fei, Jianyu Lu, Qingping Jiang, Zhibo Liu, Dan Yao, Jing Qu, Siyan Liu, Shuyan Guan, Yiyong Ma
Summary: In this study, QTLs for plant height, ear height, leaf angle, and internode length above the primary ear were identified using F2:3 pedigree population and RIL population in Changchun and Gongzhuling for 5 consecutive years. A total of 11, 13, 23, and 13 QTLs were identified for plant height, ear height, leaf angle, and internode length, respectively. Pleiotropic consistent QTLs were found for plant height and ear height, and major consistent QTLs were identified for leaf angle and internode length. Three candidate genes involved in signal pathways related to gibberellin, brassinolide, and auxin were discovered. The expression analysis showed that these genes were actively expressed during the jointing stage of maize growth.
Article
Agricultural Engineering
Yucong Bai, Miaomiao Cai, Changhong Mu, Huifang Zheng, Zhanchao Cheng, Yali Xie, Jian Gao
Summary: Auxin plays a crucial role in regulating bamboo growth and development. Experiments on naturally growing Moso bamboo treated with auxin showed that auxin mainly increases internode length rather than node number to control bamboo height. Metabolomic assays revealed that auxin treatment affects the balance of endogenous hormones, leading to increased levels of gibberellin and cytokinin. Transcriptome sequencing identified several pathways and transcription factors involved in auxin-mediated regulation of internode length. Additionally, yeast two-hybrid and transgenic experiments demonstrated the interaction between auxin and other phytohormones in growth regulation. These findings provide important insights into the mechanism and potential applications for bamboo plant height regulation.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Agricultural Engineering
Frans P. Boogaard, Eldert J. van Henten, Gert Kootstra
Summary: Computer-vision based methods for plant phenotyping have greatly benefited from the availability of 3D data, as demonstrated in this study. Using a deep neural network and clustering algorithm, accurate measurements of internode length were achieved, overcoming the limitations of 2D methods.
BIOSYSTEMS ENGINEERING
(2023)
Article
Agronomy
Zihui Liu, Peng Zhao, Xiangjun Lai, Xiaoming Wang, Wanquan Ji, Shengbao Xu
Summary: A preferential QTL QPL_6D.1 for peduncle length was identified in 406 wheat accessions, which exhibited a significantly additive effect with Rht-B1b and Rht-D1b in controlling plant height and peduncle length. Haplotypic analysis revealed that QPL_6D.1b has been selected by Chinese modern wheat cultivars, conferring shorter peduncle length and more kernels per spike, highlighting its potential in wheat breeding.
THEORETICAL AND APPLIED GENETICS
(2023)
Article
Agronomy
M. Lopez-Pereira, J. J. Casal, A. J. Hall
Summary: This study demonstrates the significant impact of crop density on sunflower oil yield, with unit area crop floret number and grain set being the primary determinants. It also highlights the influence of intra-specific variability on factors such as floret number, oil yield, and plant growth.
FIELD CROPS RESEARCH
(2022)
Article
Biotechnology & Applied Microbiology
Yangyang Liu, Kuocheng Shen, Changbin Yin, Xiaowan Xu, Xuchang Yu, Botao Ye, Zhiwen Sun, Jiayu Dong, Aoyue Bi, Xuebo Zhao, Daxing Xu, Zhonghu He, Xueyong Zhang, Chenyang Hao, Jianhui Wu, Ziying Wang, He Wu, Danni Liu, Lili Zhang, Liping Shen, Yuanfeng Hao, Fei Lu, Zifeng Guo
Summary: This study unravels the genetic basis of internode length and tiller length in wheat through a genome-wide association study. A total of 83 loci associated with these traits were identified, along with 247 pleiotropic loci. The study also discovered 163 loci under strong selective sweep. The results reveal independent regulation of internode length and consistent regulation of tiller length, as well as the geographical distribution of haplotypes explaining the differences in internode length among worldwide wheat accessions.
Article
Plant Sciences
Hirbod Bahrani, Monica Baga, Jamie Larsen, Robert J. Graf, Andre Laroche, Ravindra N. Chibbar
Summary: The study revealed that overwintering cereals adjust cold tolerance during cold acclimation, which is closely related to developmental changes at the shoot apical meristem. Evaluation of 96 genotypes showed a strong correlation between winter field survival and low temperature tolerance, indicating that cold acclimation efficiency is a major contributor to winter hardiness in winter rye.
Review
Plant Sciences
Natalia Gaarslev, Gwen Swinnen, Sebastian Soyk
Summary: Genetic networks regulating meristem transitions are key targets of selection during crop domestication, enabling precise adjustment of plant architecture for enhanced crop productivity.
Article
Biotechnology & Applied Microbiology
Rongfa Chen, Yegeng Fan, Huiwen Zhou, Shanping Mo, Zhongfeng Zhou, Haifeng Yan, Ting Luo, Xing Huang, Mengling Weng, Prakash Lakshmanan, Yangrui Li, Lihang Qiu, Jianming Wu
Summary: By obtaining high-quality long transcripts from sugarcane using the PacBio Sequel System, it was found that the inhibitory effects of DPC on plant growth may involve pathways related to plant hormone signal transduction and biosynthesis of several metabolites.
Article
Agronomy
Nohra C. Rodriguez, Luz M. Melgarejo, Matthew W. Blair
Article
Agronomy
Diana P. Leon, Oscar E. Checa, Paula A. Obando
Article
Horticulture
Nohra Rodriguez Castillo, Daniel Ambachew, Luz Marina Melgarejo, Matthew Wohlgemuth Blair
Article
Plant Sciences
Nohra Rodriguez Castillo, Luz Marina Melgarejo, Matthew Wohlgemuth Blair
FRONTIERS IN PLANT SCIENCE
(2020)
Article
Agronomy
Oscar Eduardo Checa, Marino Rodriguez, Xingbo Wu, Matthew Wohlgemuth Blair
Article
Agronomy
Sanjeev Kumar, Mohar Singh, Nikhil Malhotra, M. W. Blair, J. P. Sharma, Rucku Gupta
Summary: The study focused on screening anthracnose resistance in 33 indigenous and exotic accessions of common bean, resulting in the development of 22 hybrids, with interspecific crosses showing varying success rates. The wild relatives P. coccineus, P. acutifolius, and P. lunatus were identified as excellent sources of resistance against anthracnose, with potential for diversification of the cultivated gene pool.
Article
Plant Sciences
Daniel Ambachew, Jacqueline Joshua, Margaret T. Mmbaga, Matthew W. Blair
Summary: The study aimed to evaluate field-level resistance from various commercial classes and subgroups represented in the Mesoamerican gene pool for breeding beans in the region, and also to assess genome-wide marker x trait associations. The results identified adapted common bean genotypes with resistance to CBB and potential to be used directly in Southeastern production or in breeding programs for CBB and CR resistance. The GWAS revealed significant SNP markers associated with CBB resistance on multiple chromosomes, while no loci for CR resistance were detected.
Article
Biodiversity Conservation
Nohra Cecilia Rodriguez Castillo, Xingbo Wu, Maria Isabel Chacon, Luz Marina Melgarejo, Matthew Wohlgemuth Blair
Summary: This study developed SNP markers for purple passion fruit and revealed that the genetic diversity of this fruit crop has been reduced due to selection for cultivated genotypes compared to semiwild landraces. Commercial cultivars of purple passion fruits showed lower diversity, while landraces exhibited higher heterozygosity, polymorphism, and overall genetic diversity. The study underscores the importance of molecular evaluation of passion fruit germplasm and highlights the potential for manual or pollinator-assisted hybridization based on landrace diversity.
Article
Plant Sciences
Daniel Ambachew, Matthew W. Blair
Summary: This study evaluated aluminum toxicity tolerance in 227 genotypes of common bean and identified potential genes related to root traits. The findings suggest that polygenic inheritance is critical for aluminum tolerance in common bean roots.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Genetics & Heredity
Ranjita Thapa, Matthew Edwards, Matthew W. Blair
Summary: This study evaluated the genetic diversity in a collection of cultivated and wild species of Amaranthus using SNP markers, revealing high variability with an average polymorphism information content of 0.365. Population structure analysis identified two sub populations, and phylogeny demonstrated the relationships among the different species.
Article
Agronomy
Luis F. Campuzano-Duque, Juan Carlos Herrera, Claire Ged, Matthew Wohlgemuth Blair
Summary: Robusta coffee, covering 36% of world coffee production, has significant economic potential for small-scale producers, industrialization of new products, and emerging coffee chains in Colombia. Despite differences in various aspects between Robusta and Arabica, the increasing popularity and consumption of Robusta is driven by expanding markets in emerging economies and developed markets focused on home espresso preparation.
Article
Agronomy
Luis Fernando Campuzano-Duque, Diego Bejarano-Garavito, Javier Castillo-Sierra, Daniel Ricardo Torres-Cuesta, Andres J. Cortes, Matthew Wohlgemuth Blair
Summary: This study evaluated the purity and relationships of oat varieties using SNP markers, and concluded that SNP markers are an appropriate tool for ensuring genetic purity of oat varieties.
Article
Agronomy
Diana Pelaez, Paula A. Aguilar, Mariana Mercado, Felipe Lopez-Hernandez, Manuel Guzman, Esteban Burbano-Erazo, Kate Denning-James, Clara Medina, Matthew W. Blair, Jose J. De Vega, Andres J. Cortes
Summary: This study evaluated and selected locally adapted genotypes of the Liborino variety of common bean for commercial use. The trials revealed different yield characteristics between bush and climber types, with three climbing accessions meeting farmers' expectations. The uniform and stable seeds of the selected genotype were distributed to farmers, promoting economic and sustainable development in rural communities.
Review
Agronomy
Luis Fernando Campuzano-Duque, Matthew Wohlgemuth Blair
Summary: Robusta coffee, mostly grown in Africa, Asia, and parts of tropical America, has the potential to be cultivated in lowland areas of Colombia, a traditional Arabica coffee producer. Compared to highland Arabica coffee, Robusta has greater tolerance to drought and heat, but has different flavor characteristics and higher caffeine levels. It exhibits natural resistance to major pests and diseases, making it suitable for cultivation under harsh conditions. To improve the genetic traits of Robusta coffee, understanding its genetic resources and implementing a good breeding strategy are essential.