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Horticulture Research

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https://www.readbyqxmd.com/read/28713572/a-transcriptome-analysis-of-two-grapevine-populations-segregating-for-tendril-phyllotaxy
#1
Jie Arro, Jose Cuenca, Yingzhen Yang, Zhenchang Liang, Peter Cousins, Gan-Yuan Zhong
The shoot structure of cultivated grapevine Vitis vinifera L. typically exhibits a three-node modular repetitive pattern, two sequential leaf-opposed tendrils followed by a tendril-free node. In this study, we investigated the molecular basis of this pattern by characterizing differentially expressed genes in 10 bulk samples of young tendril tissue from two grapevine populations showing segregation of mutant or wild-type shoot/tendril phyllotaxy. One population was the selfed progeny and the other one, an outcrossed progeny of a Vitis hybrid, 'Roger's Red'...
2017: Horticulture Research
https://www.readbyqxmd.com/read/28698797/new-technologies-accelerate-the-exploration-of-non-coding-rnas-in-horticultural-plants
#2
REVIEW
Degao Liu, Ritesh Mewalal, Rongbin Hu, Gerald A Tuskan, Xiaohan Yang
Non-coding RNAs (ncRNAs), that is, RNAs not translated into proteins, are crucial regulators of a variety of biological processes in plants. While protein-encoding genes have been relatively well-annotated in sequenced genomes, accounting for a small portion of the genome space in plants, the universe of plant ncRNAs is rapidly expanding. Recent advances in experimental and computational technologies have generated a great momentum for discovery and functional characterization of ncRNAs. Here we summarize the classification and known biological functions of plant ncRNAs, review the application of next-generation sequencing (NGS) technology and ribosome profiling technology to ncRNA discovery in horticultural plants and discuss the application of new technologies, especially the new genome-editing tool clustered regularly interspaced short palindromic repeat (CRISPR)/CRISPR-associated protein 9 (Cas9) systems, to functional characterization of plant ncRNAs...
2017: Horticulture Research
https://www.readbyqxmd.com/read/28674614/an-efp-browser-for-visualizing-strawberry-fruit-and-flower-transcriptomes
#3
Charles Hawkins, Julie Caruana, Jiaming Li, Chris Zawora, Omar Darwish, Jun Wu, Nadim Alkharouf, Zhongchi Liu
Wild strawberry Fragaria vesca is emerging as an important model system for the cultivated strawberry due to its diploid genome and availability of extensive transcriptome data and a range of molecular genetic tools. Being able to better utilize these tools, especially the transcriptome data, will greatly facilitate research progress in strawberry and other Rosaceae fruit crops. The electronic fluorescent pictograph (eFP) software is a useful and popular tool to display transcriptome data visually, and is widely used in other model organisms including Arabidopsis and mouse...
2017: Horticulture Research
https://www.readbyqxmd.com/read/28638623/the-genetic-architecture-of-growth-traits-in-salix-matsudana-under-salt-stress
#4
Jian Zhang, Huwei Yuan, Qingshan Yang, Min Li, Ying Wang, Yujuan Li, Xiangjian Ma, Feng Tan, Rongling Wu
Willow (Salix) is one of the most important ornamental tree species in landscape plants. One species, Salix matsudana, is widely used as a shade tree and border tree because of its soft branches and plump crown. Some varieties of S. matsudana were salt tolerant and could grow normally in coastal regions. However, the molecular mechanisms of salt tolerance for S. matsudana have been less clear. Here, we addressed this issue by performing a mapping experiment containing 195 intraspecific F1 progeny of S. matsudana, derived from salt-sensitive 'yanjiang' and salt-tolerant '9901', grown by cuttings in a 100 mM NaCl solution...
2017: Horticulture Research
https://www.readbyqxmd.com/read/28611922/the-bzip-transcription-factor-mdhy5-regulates-anthocyanin-accumulation-and-nitrate-assimilation-in-apple
#5
Jian-Ping An, Feng-Jia Qu, Ji-Fang Yao, Xiao-Na Wang, Chun-Xiang You, Xiao-Fei Wang, Yu-Jin Hao
The basic leucine zipper (bZIP) transcription factor HY5 plays a multifaceted role in plant growth and development. Here the apple MdHY5 gene was cloned based on its homology with Arabidopsis HY5. Expression analysis demonstrated that MdHY5 transcription was induced by light and abscisic acid treatments. Electrophoretic mobility shift assays and transient expression assays subsequently showed that MdHY5 positively regulated both its own transcription and that of MdMYB10 by binding to E-box and G-box motifs, respectively...
2017: Horticulture Research
https://www.readbyqxmd.com/read/28580151/transcriptomic-and-metabolomic-analyses-of-cucumber-fruit-peels-reveal-a-developmental-increase-in-terpenoid-glycosides-associated-with-age-related-resistance-to-phytophthora-capsici
#6
Ben N Mansfeld, Marivi Colle, Yunyan Kang, A Daniel Jones, Rebecca Grumet
The oomycete, Phytophthora capsici, infects cucumber (Cucumis sativus L.) fruit. An age-related resistance (ARR) to this pathogen was previously observed in fruit of cultivar 'Vlaspik' and shown to be associated with the peel. Young fruits are highly susceptible, but develop resistance at ~10-12 days post pollination (dpp). Peels from resistant (16 dpp) versus susceptible (8 dpp) age fruit are enriched with genes associated with defense, and methanolic extracts from resistant age peels inhibit pathogen growth...
2017: Horticulture Research
https://www.readbyqxmd.com/read/28580150/additive-qtls-on-three-chromosomes-control-flowering-time-in-woodland-strawberry-fragaria-vesca-l
#7
Samia Samad, Takeshi Kurokura, Elli Koskela, Tuomas Toivainen, Vipul Patel, Katriina Mouhu, Daniel James Sargent, Timo Hytönen
Flowering time is an important trait that affects survival, reproduction and yield in both wild and cultivated plants. Therefore, many studies have focused on the identification of flowering time quantitative trait locus (QTLs) in different crops, and molecular control of this trait has been extensively investigated in model species. Here we report the mapping of QTLs for flowering time and vegetative traits in a large woodland strawberry mapping population that was phenotyped both under field conditions and in a greenhouse after flower induction in the field...
2017: Horticulture Research
https://www.readbyqxmd.com/read/28529757/enzyme-activities-and-gene-expression-of-starch-metabolism-provide-insights-into-grape-berry-development
#8
Xudong Zhu, Chaobo Zhang, Weimin Wu, Xiaopeng Li, Chuan Zhang, Jinggui Fang
Grapes are categorized as a non-climacteric type of fruit which its ripening is not associated to important rises in respiration and ethylene synthesis. The starch metabolism shares a certain role in the carbohydrate metabolic pathways during grape berry development, and is regarded as an important transient pool in the pathway of sugar accumulation. However, the comprehensive role of starch and its contribution to the quality and flavor of grape berry have not been explored thoroughly. In this study, the expression levels of genes enzyme activities and carbohydrate concentrations related to starch metabolism, were analyzed to understand the molecular mechanism of starch accumulation during grape berry development...
2017: Horticulture Research
https://www.readbyqxmd.com/read/28503311/a-community-resource-for-exploring-and-utilizing-genetic-diversity-in-the-usda-pea-single-plant-plus-collection
#9
William L Holdsworth, Elodie Gazave, Peng Cheng, James R Myers, Michael A Gore, Clarice J Coyne, Rebecca J McGee, Michael Mazourek
Globally, pea (Pisum sativum L.) is an important temperate legume crop for food, feed and fodder, and many breeding programs develop cultivars adapted to these end-uses. In order to assist pea development efforts, we assembled the USDA Pea Single Plant Plus Collection (PSPPC), which contains 431 P. sativum accessions with morphological, geographic and taxonomic diversity. The collection was characterized genetically in order to maximize its value for trait mapping and genomics-assisted breeding. To that end, we used genotyping-by-sequencing-a cost-effective method for de novo single-nucleotide polymorphism (SNP) marker discovery-to generate 66 591 high-quality SNPs...
2017: Horticulture Research
https://www.readbyqxmd.com/read/28451438/genotyping-by-sequencing-of-pear-pyrus-spp-accessions-unravels-novel-patterns-of-genetic-diversity-and-selection-footprints
#10
Satish Kumar, Chris Kirk, Cecilia Deng, Claudia Wiedow, Mareike Knaebel, Lester Brewer
Understanding of genetic diversity and marker-trait relationships in pears (Pyrus spp.) forms an important part of gene conservation and cultivar breeding. Accessions of Asian and European pear species, and interspecific hybrids were planted in a common garden experiment. Genotyping-by-sequencing (GBS) was used to genotype 214 accessions, which were also phenotyped for fruit quality traits. A combination of selection scans and association analyses were used to identify signatures of selection. Patterns of genetic diversity, population structure and introgression were also investigated...
2017: Horticulture Research
https://www.readbyqxmd.com/read/28446955/combination-of-cyclamen-persicum-mill-floral-gene-promoters-and-chimeric-repressors-for-the-modification-of-ornamental-traits-in-torenia-fournieri-lind
#11
Ichiro Kasajima, Norihiro Ohtsubo, Katsutomo Sasaki
Although chimeric repressors such as the Arabidopsis TCP3 repressor are known to have significant effects on flower morphology and color, their cellular-level effects on flower petals are not understood. The promoter sequences of the genes expressed in the flowers of cyclamen, a representative potted flower grown during the winter season, are also unknown. Here, we isolated eight promoters from cyclamen genes that are reportedly expressed in the petals. These promoters were then fused to four chimeric repressors and introduced into the model flower torenia to screen for effective combinations of promoters and repressors for flower breeding...
2017: Horticulture Research
https://www.readbyqxmd.com/read/28435686/apple-dwarfing-rootstocks-exhibit-an-imbalance-in-carbohydrate-allocation-and-reduced-cell-growth-and-metabolism
#12
Toshi M Foster, Peter A McAtee, Chethi N Waite, Helen L Boldingh, Tony K McGhie
Apple dwarfing rootstocks cause earlier shoot termination and reduced root and shoot mass. To identify physiological factors responsible for rootstock-induced growth restriction, we compared vascular-enriched gene expression between two dwarfing rootstocks ('M27' and 'M9') and the vigorous rootstock 'M793' using RNA sequencing and quantitative reverse transcriptase PCR. Differentially expressed genes common to both dwarfing rootstocks belonged to five main biological processes: (1) primary metabolism, (2) cell wall synthesis and modification, (3) secondary metabolism, (4) hormone signalling and response and (5) redox homeostasis...
2017: Horticulture Research
https://www.readbyqxmd.com/read/28326185/dna-informed-breeding-of-rosaceous-crops-promises-progress-and-prospects
#13
REVIEW
Cameron P Peace
Crops of the Rosaceae family provide valuable contributions to rural economies and human health and enjoyment. Sustained solutions to production challenges and market demands can be met with genetically improved new cultivars. Traditional rosaceous crop breeding is expensive and time-consuming and would benefit from improvements in efficiency and accuracy. Use of DNA information is becoming conventional in rosaceous crop breeding, contributing to many decisions and operations, but only after past decades of solved challenges and generation of sufficient resources...
2017: Horticulture Research
https://www.readbyqxmd.com/read/28280542/differential-gene-expression-analysis-of-chili-pyrus-bretschneideri-fruit-pericarp-with-two-types-of-bagging-treatments
#14
Yuling Wang, Xinfu Zhang, Ran Wang, Yingxin Bai, Chenglian Liu, Yongbing Yuan, Yingjie Yang, Shaolan Yang
Preharvest bagging is a simple, grower-friendly and safe physical protection technique commonly applied to many fruits, and the application of different fruit bags can have various effects. To explore the molecular mechanisms underlying the fruit quality effects of different bagging treatments, digital gene expression (DGE) profiling of bagged and unbagged 'Chili' (Pyrus bretschneideri Rehd.) pear pericarp during development was performed. Relative to unbagged fruit, a total of 3022 and 769 differentially expressed genes (DEGs) were detected in the polyethylene (PE)-bagged and non-woven fabric-bagged fruit, respectively...
2017: Horticulture Research
https://www.readbyqxmd.com/read/28243453/selection-for-production-related-traits-in-pelargonium-zonale-improved-design-and-analysis-make-all-the-difference
#15
Heike Molenaar, Martin Glawe, Robert Boehm, Hans-Peter Piepho
Ornamental plant variety improvement is limited by current phenotyping approaches and neglected use of experimental designs. The present study was conducted to show the benefits of using an experimental design and corresponding analysis in ornamental breeding regarding simulated response to selection in Pelargonium zonale for production-related traits. This required establishment of phenotyping protocols for root formation and stem cutting counts, with which 974 genotypes were assessed in a two-phase experimental design...
2017: Horticulture Research
https://www.readbyqxmd.com/read/28243452/elucidation-of-the-honeycrisp-pedigree-through-haplotype-analysis-with-a-multi-family-integrated-snp-linkage-map-and-a-large-apple-malus%C3%A3-domestica-pedigree-connected-snp-data-set
#16
Nicholas P Howard, Eric van de Weg, David S Bedford, Cameron P Peace, Stijn Vanderzande, Matthew D Clark, Soon Li Teh, Lichun Cai, James J Luby
The apple (Malus×domestica) cultivar Honeycrisp has become important economically and as a breeding parent. An earlier study with SSR markers indicated the original recorded pedigree of 'Honeycrisp' was incorrect and 'Keepsake' was identified as one putative parent, the other being unknown. The objective of this study was to verify 'Keepsake' as a parent and identify and genetically describe the unknown parent and its grandparents. A multi-family based dense and high-quality integrated SNP map was created using the apple 8 K Illumina Infinium SNP array...
2017: Horticulture Research
https://www.readbyqxmd.com/read/28243451/cmftl2-is-involved-in-the-photoperiod-and-sucrose-mediated-control-of-flowering-time-in-chrysanthemum
#17
Jing Sun, Heng Wang, Liping Ren, Sumei Chen, Fadi Chen, Jiafu Jiang
The chrysanthemum genome harbors three FT-like genes: CmFTL1 and CmFTL3 are thought to act as regulators of floral induction under long-day (LD) and short-day (SD) conditions, respectively, whereas the function of CmFTL2 is currently unclear. The objective of the present research was to explore the function of CmFTL2 in the determination of flowering time of the photo-insensitive chrysanthemum cultivar 'Floral Yuuka', both in response to variation in the photoperiod and to the exogenous provision of sucrose...
2017: Horticulture Research
https://www.readbyqxmd.com/read/28101369/a-single-gene-controls-leaf-background-color-in-caladium-araceae-and-is-tightly-linked-to-genes-for-leaf-main-vein-color-spotting-and-rugosity
#18
Zhe Cao, Shunzhao Sui, Qian Yang, Zhanao Deng
Modern cultivated caladiums (Caladium×hortulanum) are grown for their long-lasting and colorful leaves. Understanding the mode of inheritance for caladium leaf characteristics is critical for plant breeders to select appropriate parents, predict progeny performance, estimate breeding population sizes needed, and increase breeding efficiencies. This study was conducted to determine the mode of inheritance of two leaf background colors (lemon and green) in caladium and to understand their relationships with four other important leaf characteristics including leaf shape, main vein color, spotting, and rugosity...
2017: Horticulture Research
https://www.readbyqxmd.com/read/28090334/an-experimental-validation-of-genomic-selection-in-octoploid-strawberry
#19
Salvador A Gezan, Luis F Osorio, Sujeet Verma, Vance M Whitaker
The primary goal of genomic selection is to increase genetic gains for complex traits by predicting performance of individuals for which phenotypic data are not available. The objective of this study was to experimentally evaluate the potential of genomic selection in strawberry breeding and to define a strategy for its implementation. Four clonally replicated field trials, two in each of 2 years comprised of a total of 1628 individuals, were established in 2013-2014 and 2014-2015. Five complex yield and fruit quality traits with moderate to low heritability were assessed in each trial...
2017: Horticulture Research
https://www.readbyqxmd.com/read/28066557/stability-of-fruit-quality-traits-in-diverse-watermelon-cultivars-tested-in-multiple-environments
#20
Mahendra Dia, Todd C Wehner, Penelope Perkins-Veazie, Richard Hassell, Daniel S Price, George E Boyhan, Stephen M Olson, Stephen R King, Angela R Davis, Gregory E Tolla, Jerome Bernier, Benito Juarez
Lycopene is a naturally occurring red carotenoid compound that is found in watermelon. Lycopene has antioxidant properties. Lycopene content, sugar content and hollowheart resistance are subject to significant genotype×environment interaction (G×E), which makes breeding for these fruit quality traits difficult. The objectives of this study were to (i) evaluate the influence of years and locations on lycopene content, sugar content and hollowheart resistance for a set of watermelon genotypes, and (ii) identify genotypes with high stability for lycopene, sugar, and hollowheart resistance...
2016: Horticulture Research
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