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Horticulture Research

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https://www.readbyqxmd.com/read/29285398/combination-of-itraq-proteomics-and-rna-seq-transcriptomics-reveals-multiple-levels-of-regulation-in-phytoplasma-infected-ziziphus-jujuba-mill
#1
Xia Ye, Huiyu Wang, Peng Chen, Bing Fu, Mengyang Zhang, Jidong Li, Xianbo Zheng, Bin Tan, Jiancan Feng
Jujube witches' broom (JWB) is caused by infection with a phytoplasma. A multi-omics approach was taken during graft infection of jujube by JWB-infected scion through the analysis of the plant transcriptome, proteome and phytohormone levels. A high number of differentially expressed genes (DEGs) were identified 37 weeks after grafting (WAG), followed by observation of typical symptoms of JWB at 48 WAG. At 37 WAG, the majority of the upregulated DEGs and differentially expressed proteins (DEPs) were related to flavonoid biosynthesis, phenylalanine metabolism and phenylpropanoid biosynthesis...
2017: Horticulture Research
https://www.readbyqxmd.com/read/29285397/divergent-evolutionary-patterns-of-the-mapk-cascade-genes-in-brassica-rapa-and-plant-phylogenetics
#2
Peng Wu, Wenli Wang, Ying Li, Xilin Hou
Mitogen-activated protein kinase (MAPK) cascade signal transduction modules play crucial roles in regulating many biological processes in plants. These cascades are composed of three classes of hierarchically organized protein kinases, MAPKKKs, MAPKKs and MAPKs. Here, we analyzed gene retention, phylogenetic, evolution and expression patterns of MAPK cascade genes in Brassica rapa. We further found that the MAPK branches, classes III and IV, appeared after the split of bryophytes and green algae after analyzing the MAPK cascade genes in 8 species, and their rapid expansion led to the great size of the families of MAPKs...
2017: Horticulture Research
https://www.readbyqxmd.com/read/29263793/endogenous-auxin-and-its-manipulation-influence-in-vitro-shoot-organogenesis-of-citrus-epicotyl-explants
#3
Wei Hu, Sabrina Fagundez, Lorenzo Katin-Grazzini, Yanjun Li, Wei Li, Yingnan Chen, Xiaomin Wang, Ziniu Deng, Shenxi Xie, Richard J McAvoy, Yi Li
Endogenous auxin is an important regulator of in vivo organ development, but its role in in vitro organogenesis is unclear. It has been observed that the basal end of epicotyl cuttings of juvenile citrus seedlings produces fewer shoots than the apical end. Here, we report that elevated endogenous auxin levels in the basal end of citrus epicotyl cuttings are inhibitory for in vitro shoot organogenesis. Using transgenic citrus plants expressing an auxin-inducible GUS reporter gene, we have observed elevated levels of auxin at the basal end of stem cuttings that are mediated by polar auxin transport...
2017: Horticulture Research
https://www.readbyqxmd.com/read/29263792/characteristics-of-dihydroflavonol-4-reductase-gene-promoters-from-different-leaf-colored-malus-crabapple-cultivars
#4
Ji Tian, Meng-Chen Chen, Jie Zhang, Ke-Ting Li, Ting-Ting Song, Xi Zhang, Yun-Cong Yao
Anthocyanins are secondary metabolites in land plants that contribute to the colors of leaves and flowers, and are nutritionally valuable components of the human diet. The DFR gene plays an important role in the anthocyanin biosynthetic pathway. In this study, we investigated the regulation of DFR expression and in different Malus crabapple cultivars that show distinct patterns of leaf coloration, and how it influences leaf anthocyanin accumulation and coloration. Specifically, we studied the ever-red leaved cultivar 'Royalty', the ever-green leaved cultivar 'Flame' and the spring-red leaved cultivar 'Radiant'...
2017: Horticulture Research
https://www.readbyqxmd.com/read/29238599/characterization-of-physiological-and-molecular-processes-associated-with-potato-response-to-zebra-chip-disease
#5
Chika C Nwugo, Venkatesan G Sengoda, Li Tian, Hong Lin
Transcriptional analyses identified molecular mechanisms associated with the response of leaf and root potato tissues to 'Candidatus. Liberibacter solanacearum' (Lso) infection, presumptive causal agent of zebra chip disease (ZC). Putative Lso infection affected several host processes including defense response-, regulation-, starch metabolism- and energy production-related processes. Interestingly, while proteinase inhibitors were strongly upregulated in leaf tissues, a concomitant downregulation was observed in root tissues...
2017: Horticulture Research
https://www.readbyqxmd.com/read/29238598/breeding-next-generation-tree-fruits-technical-and-legal-challenges
#6
REVIEW
Lorenza Dalla Costa, Mickael Malnoy, Ivana Gribaudo
The new plant breeding technologies (NPBTs) have recently emerged as powerful tools in the context of 'green' biotechnologies. They have wide potential compared to classical genetic engineering and they are attracting the interest of politicians, stakeholders and citizens due to the revolutionary impact they may have on agriculture. Cisgenesis and genome editing potentially allow to obtain pathogen-resistant plants or plants with enhanced qualitative traits by introducing or disrupting specific genes in shorter times compared to traditional breeding programs and by means of minimal modifications in the plant genome...
2017: Horticulture Research
https://www.readbyqxmd.com/read/29214028/reprogramming-of-a-defense-signaling-pathway-in-rough-lemon-and-sweet-orange-is-a-critical-element-of-the-early-response-to-candidatus-liberibacter-asiaticus
#7
Qibin Yu, Chunxian Chen, Dongliang Du, Ming Huang, Jiqiang Yao, Fahong Yu, Ronald H Brlansky, Frederick G Gmitter
Huanglongbing (HLB) in citrus infected by Candidatus Liberibacter asiaticus (CLas) has caused tremendous losses to the citrus industry. No resistant genotypes have been identified in citrus species or close relatives. Among citrus varieties, rough lemon (Citrus jambhiri) has been considered tolerant due to its ability to produce a healthy flush of new growth after infection. The difference between tolerance and susceptibility is often defined by the speed and intensity of a plant's response to a pathogen, especially early defense responses...
2017: Horticulture Research
https://www.readbyqxmd.com/read/29152310/genome-resequencing-and-transcriptome-profiling-reveal-structural-diversity-and-expression-patterns-of-constitutive-disease-resistance-genes-in-huanglongbing-tolerant-poncirus-trifoliata-and-its-hybrids
#8
Nidhi Rawat, Brajendra Kumar, Ute Albrecht, Dongliang Du, Ming Huang, Qibin Yu, Yi Zhang, Yong-Ping Duan, Kim D Bowman, Fred G Gmitter, Zhanao Deng
Huanglongbing (HLB) is the most destructive bacterial disease of citrus worldwide. While most citrus varieties are susceptible to HLB, Poncirus trifoliata, a close relative of Citrus, and some of its hybrids with Citrus are tolerant to HLB. No specific HLB tolerance genes have been identified in P. trifoliata but recent studies have shown that constitutive disease resistance (CDR) genes were expressed at much higher levels in HLB-tolerant Poncirus hybrids and the expression of CDR genes was modulated by Candidatus Liberibacter asiaticus (CLas), the pathogen of HLB...
2017: Horticulture Research
https://www.readbyqxmd.com/read/29138689/clarifying-sub-genomic-positions-of-qtls-for-flowering-habit-and-fruit-quality-in-u-s-strawberry-fragaria%C3%A3-ananassa-breeding-populations-using-pedigree-based-qtl-analysis
#9
Sujeet Verma, Jason D Zurn, Natalia Salinas, Megan M Mathey, Beatrice Denoyes, James F Hancock, Chad E Finn, Nahla V Bassil, Vance M Whitaker
The cultivated strawberry (Fragaria×ananassa) is consumed worldwide for its flavor and nutritional benefits. Genetic analysis of commercially important traits in strawberry are important for the development of breeding methods and tools for this species. Although several quantitative trait loci (QTL) have been previously detected for fruit quality and flowering traits using low-density genetic maps, clarity on the sub-genomic locations of these QTLs was missing. Recent discoveries in allo-octoploid strawberry genomics led to the development of the IStraw90 single-nucleotide polymorphism (SNP) array, enabling high-density genetic maps and finer resolution QTL analysis...
2017: Horticulture Research
https://www.readbyqxmd.com/read/29118994/interval-mapping-for-red-green-skin-color-in-asian-pears-using-a-modified-qtl-seq-method
#10
Huabai Xue, Ting Shi, Fangfang Wang, Huangkai Zhou, Jian Yang, Long Wang, Suke Wang, Yanli Su, Zhen Zhang, Yushan Qiao, Xiugen Li
Pears with red skin are attractive to consumers and provide additional health benefits. Identification of the gene(s) responsible for skin coloration can benefit cultivar selection and breeding. The use of QTL-seq, a bulked segregant analysis method, can be problematic when heterozygous parents are involved. The present study modified the QTL-seq method by introducing a |Δ(SNP-index)| parameter to improve the accuracy of mapping the red skin trait in a group of highly heterozygous Asian pears. The analyses were based on mixed DNA pools composed of 28 red-skinned and 27 green-skinned pear lines derived from a cross between the 'Mantianhong' and 'Hongxiangsu' red-skinned cultivars...
2017: Horticulture Research
https://www.readbyqxmd.com/read/29114391/erratum-the-bzip-transcription-factor-mdhy5-regulates-anthocyanin-accumulation-and-nitrate-assimilation-in-apple
#11
Jian-Ping An, Feng-Jia Qu, Ji-Fang Yao, Xiao-Na Wang, Chun-Xiang You, Xiao-Fei Wang, Yu-Jin Hao
[This corrects the article DOI: 10.1038/hortres.2017.23.].
2017: Horticulture Research
https://www.readbyqxmd.com/read/29114390/phospholipase-d-inhibition-by-hexanal-is-associated-with-calcium-signal-transduction-events-in-raspberry
#12
Walid El Kayal, Gopinadhan Paliyath, J Alan Sullivan, Jayasankar Subramanian
Raspberry (Rubus spp.) is an economically important crop with a restricted growing season and very limited fruit shelf-life due to its extreme tenderness. In order to prolong its shelf life, an aqueous composition containing hexanal as the key active ingredient (HC) was applied as a preharvest spray during fruit development. The effects of HC were assessed using physiological, biochemical and anatomical parameters on the treated fruits and compared with the effects of mock inoculation which lacked hexanal. Sugars and acidity did not show a significant change in response to HC treatment, while the pulling force (the tension required to detach the berry from the receptacle) significantly improved in the HC-treated fruits, compared to control...
2017: Horticulture Research
https://www.readbyqxmd.com/read/29071089/erratum-pro-inflammatory-effects-of-a-litchi-protein-extract-in-murine-raw264-7-macrophages
#13
Xiaoli Wang, Xiaorong Hu, Huiqing Yan, Zhaocheng Ma, Xiuxin Deng
[This corrects the article DOI: 10.1038/hortres.2016.17.].
2017: Horticulture Research
https://www.readbyqxmd.com/read/29051820/vqmapkkk38-is-essential-for-stilbene-accumulation-in-grapevine
#14
Yuntong Jiao, Dan Wang, Lan Wang, Changyue Jiang, Yuejin Wang
Vitis species, including grapevine, produce a class of secondary metabolites called stilbenes that are important for plant disease resistance and can have positive effects on human health. Mitogen-activated protein kinase (MAPK) signaling cascades not only play key roles in plant defense responses but also contribute to stilbene biosynthesis in grapevine. MAPKKKs function at the upper level of the MAPK network and initiate signaling through this pathway. In this study, a Raf-like MAPKKK gene, VqMAPKKK38, was identified and functionally characterized from the Chinese wild grapevine V...
2017: Horticulture Research
https://www.readbyqxmd.com/read/28979789/water-lilies-as-emerging-models-for-darwin-s-abominable-mystery
#15
REVIEW
Fei Chen, Xing Liu, Cuiwei Yu, Yuchu Chen, Haibao Tang, Liangsheng Zhang
Water lilies are not only highly favored aquatic ornamental plants with cultural and economic importance but they also occupy a critical evolutionary space that is crucial for understanding the origin and early evolutionary trajectory of flowering plants. The birth and rapid radiation of flowering plants has interested many scientists and was considered 'an abominable mystery' by Charles Darwin. In searching for the angiosperm evolutionary origin and its underlying mechanisms, the genome of Amborella has shed some light on the molecular features of one of the basal angiosperm lineages; however, little is known regarding the genetics and genomics of another basal angiosperm lineage, namely, the water lily...
2017: Horticulture Research
https://www.readbyqxmd.com/read/28955443/solar-thermotherapy-reduces-the-titer-of-candidatus-liberibacter-asiaticus-and-enhances-canopy-growth-by-altering-gene-expression-profiles-in-hlb-affected-citrus-plants
#16
Melissa M Doud, Yungsheng Wang, Michelle T Hoffman, Christina L Latza, Weiqi Luo, Cheryl M Armstrong, Tim R Gottwald, Liangying Dai, Feng Luo, Yongping Duan
Huanglongbing (HLB), a systemic and destructive disease of citrus, is associated with 'Candidatus Liberibacter asiaticus' (Las) in the United States. Our earlier work has shown that Las bacteria were significantly reduced or eliminated when potted HLB-affected citrus were continuously exposed to high temperatures of 40 to 42 °C for a minimum of 48 h. To determine the feasibility and effectiveness of solar thermotherapy in the field, portable plastic enclosures were placed over commercial and residential citrus, exposing trees to high temperatures through solarization...
2017: Horticulture Research
https://www.readbyqxmd.com/read/28944065/exogenous-cytokinin-application-to-actinidia-chinensis-var-deliciosa-hayward-fruit-promotes-fruit-expansion-through-water-uptake
#17
Simona Nardozza, Helen L Boldingh, Mark W Wohlers, Andrew P Gleave, Zhiwei Luo, Guglielmo Costa, Elspeth A MacRae, Michael J Clearwater, Annette C Richardson
Exogenous application of a cytokinin-like compound forchlorfenuron (CPPU) can promote fruit growth, although often at the expense of dry matter (DM), an important indicator of fruit quality. Actinidia chinensis var. deliciosa 'Hayward' fruit are very responsive to CPPU treatments, but the mechanism underlying the significant fruit weight increase and associated decrease in DM is unclear. In this study, we hypothesised that CPPU-enhanced growth increases fruit carbohydrate demand, but limited carbohydrate supply resulted in decreased fruit DM...
2017: Horticulture Research
https://www.readbyqxmd.com/read/28904803/comparative-transcriptome-analysis-during-early-fruit-development-between-three-seedy-citrus-genotypes-and-their-seedless-mutants
#18
Shujian Zhang, Qingchun Shi, Ute Albrecht, Robert G Shatters, Ric Stange, Greg McCollum, Shuo Zhang, Chengming Fan, Ed Stover
Identification of genes with differential transcript abundance (GDTA) in seedless mutants may enhance understanding of seedless citrus development. Transcriptome analysis was conducted at three time points during early fruit development (Phase 1) of three seedy citrus genotypes: Fallglo (Bower citrus hybrid (Citrus reticulata×C. reticulata×C. paradisi)×Temple (C. reticulata×C. sinensis)), grapefruit (C. paradisi), Pineapple sweet orange (C. sinensis), and their seedless mutants. Seed abortion in seedless mutants was observed at 26 days post anthesis (Time point 2)...
2017: Horticulture Research
https://www.readbyqxmd.com/read/28791127/patterns-of-genomic-and-phenomic-diversity-in-wine-and-table-grapes
#19
Zoë Migicovsky, Jason Sawler, Kyle M Gardner, Mallikarjuna K Aradhya, Bernard H Prins, Heidi R Schwaninger, Carlos D Bustamante, Edward S Buckler, Gan-Yuan Zhong, Patrick J Brown, Sean Myles
Grapes are one of the most economically and culturally important crops worldwide, and they have been bred for both winemaking and fresh consumption. Here we evaluate patterns of diversity across 33 phenotypes collected over a 17-year period from 580 table and wine grape accessions that belong to one of the world's largest grape gene banks, the grape germplasm collection of the United States Department of Agriculture. We find that phenological events throughout the growing season are correlated, and quantify the marked difference in size between table and wine grapes...
2017: Horticulture Research
https://www.readbyqxmd.com/read/28785415/the-wrky-transcription-factor-hpwrky44-regulates-cytp450-like1-expression-in-red-pitaya-fruit-hylocereus-polyrhizus
#20
Mei-Nv Cheng, Zi-Juan Huang, Qing-Zhu Hua, Wei Shan, Jian-Fei Kuang, Wang-Jin Lu, Yong-Hua Qin, Jian-Ye Chen
Red pitaya (Hylocereus polyrhizus) fruit is a high-value, functional food, containing a high level of betalains. Several genes potentially related to betalain biosynthesis, such as cytochrome P450-like (CytP450-like), have been identified in pitaya fruit, while their transcriptional regulation remains unclear. In this work, the potential involvement of a WRKY transcription factor, HpWRKY44, in regulating CytP450-like1 expression in pitaya fruit was examined. HpWRKY44, a member of the Group 1 WRKY family, contains two conserved WRKY motifs and is localized in the nucleus...
2017: Horticulture Research
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