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BMC Plant Biology

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https://www.readbyqxmd.com/read/28209137/transcriptional-analysis-of-defense-mechanisms-in-upland-tetraploid-switchgrass-to-greenbugs
#1
Teresa Donze-Reiner, Nathan A Palmer, Erin D Scully, Travis J Prochaska, Kyle G Koch, Tiffany Heng-Moss, Jeffrey D Bradshaw, Paul Twigg, Keenan Amundsen, Scott E Sattler, Gautam Sarath
BACKGROUND: Aphid infestation of switchgrass (Panicum virgatum) has the potential to reduce yields and biomass quality. Although switchgrass-greenbug (Schizaphis graminum; GB) interactions have been studied at the whole plant level, little information is available on plant defense responses at the molecular level. RESULTS: The global transcriptomic response of switchgrass cv Summer to GB was monitored by RNA-Seq in infested and control (uninfested) plants harvested at 5, 10, and 15 days after infestation (DAI)...
February 16, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28202046/highly-predictive-snp-markers-for-efficient-selection-of-the-wheat-leaf-rust-resistance-gene-lr16
#2
Mulualem T Kassa, Frank M You, Colin W Hiebert, Curtis J Pozniak, Pierre R Fobert, Andrew G Sharpe, James G Menzies, D Gavin Humphreys, Nicole Rezac Harrison, John P Fellers, Brent D McCallum, Curt A McCartney
BACKGROUND: Lr16 is a widely deployed leaf rust resistance gene in wheat (Triticum aestivum L.) that is highly effective against the North American Puccinia triticina population when pyramided with the gene Lr34. Lr16 is a seedling leaf rust resistance gene conditioning an incompatible interaction with a distinct necrotic ring surrounding the uredinium. Lr16 was previously mapped to the telomeric region of the short arm of wheat chromosome 2B. The goals of this study were to develop numerous single nucleotide polymorphism (SNP) markers for the Lr16 region and identify diagnostic gene-specific SNP marker assays for marker-assisted selection (MAS)...
February 15, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28202014/defensive-changes-in-maize-leaves-induced-by-feeding-of-mediterranean-corn-borer-larvae
#3
Rogelio Santiago, Ana Cao, Ana Butrón, Ana López-Malvar, Víctor M Rodríguez, Germán V Sandoya, Rosa A Malvar
BACKGROUND: Plants can respond to insect attack via defense mechanisms that reduce insect performance. In this study, we examined the effects of several treatments applied to two maize genotypes (one resistant, one susceptible) on the subsequent growth and survival of Sesamia nonagrioides Lef. (Mediterranean corn borer, MCB) larvae. The treatments were infestation with MCB larvae, application of MCB regurgitant upon wounding, wounding alone, or exposure to methyl jasmonate, and they were applied at the V6-V8 stage of maize development...
February 15, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28193168/genome-wide-snp-identification-linkage-map-construction-and-qtl-mapping-for-seed-mineral-concentrations-and-contents-in-pea-pisum-sativum-l
#4
Yu Ma, Clarice J Coyne, Michael A Grusak, Michael Mazourek, Peng Cheng, Dorrie Main, Rebecca J McGee
BACKGROUND: Marker-assisted breeding is now routinely used in major crops to facilitate more efficient cultivar improvement. This has been significantly enabled by the use of next-generation sequencing technology to identify loci and markers associated with traits of interest. While rich in a range of nutritional components, such as protein, mineral nutrients, carbohydrates and several vitamins, pea (Pisum sativum L.), one of the oldest domesticated crops in the world, remains behind many other crops in the availability of genomic and genetic resources...
February 13, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28193161/systematic-comparison-of-lncrnas-with-protein-coding-mrnas-in-population-expression-and-their-response-to-environmental-change
#5
Qin Xu, Zhihong Song, Caiyun Zhu, Chengcheng Tao, Lifang Kang, Wei Liu, Fei He, Juan Yan, Tao Sang
BACKGROUND: Long non-coding RNA (lncRNA) is a class of non-coding RNA with important regulatory roles in biological process of organisms. The systematic comparison of lncRNAs with protein coding mRNAs in population expression and their response to environmental change are still poorly understood. Here we identified 17,610 lncRNAs and calculated their expression levels based on RNA-seq of 80 individuals of Miscanthus lutarioriparius from two environments, the nearly native habitats and transplanted field, respectively...
February 13, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28187710/ionomic-and-metabolic-responses-to-neutral-salt-or-alkaline-salt-stresses-in-maize-zea-mays-l-seedlings
#6
Rui Guo, LianXuan Shi, Changrong Yan, Xiuli Zhong, FengXue Gu, Qi Liu, Xu Xia, Haoru Li
BACKGROUND: Soil salinity and alkalinity present a serious threat to global agriculture. However, most of the studies have focused on neutral salt stress, and the information on the metabolic responses of plants to alkaline salt stress is limited. This investigation aimed at determining the influence of neutral salt and alkaline salt stresses on the content of metal elements and metabolites in maize plant tissues, by using mixtures of various proportions of NaCl, NaHCO3, Na2SO4, and Na2CO3...
February 10, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28183294/chloroplast-proteome-response-to-drought-stress-and-recovery-in-tomato-solanum-lycopersicum-l
#7
Rachele Tamburino, Monica Vitale, Alessandra Ruggiero, Mauro Sassi, Lorenza Sannino, Simona Arena, Antonello Costa, Giorgia Batelli, Nicola Zambrano, Andrea Scaloni, Stefania Grillo, Nunzia Scotti
BACKGROUND: Drought is a major constraint for plant growth and crop productivity that is receiving an increased attention due to global climate changes. Chloroplasts act as environmental sensors, however, only partial information is available on stress-induced mechanisms within plastids. Here, we investigated the chloroplast response to a severe drought treatment and a subsequent recovery cycle in tomato through physiological, metabolite and proteomic analyses. RESULTS: Under stress conditions, tomato plants showed stunted growth, and elevated levels of proline, abscisic acid (ABA) and late embryogenesis abundant gene transcript...
February 10, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28166731/metabolomic-analysis-of-pathways-related-to-rice-grain-chalkiness-by-a-notched-belly-mutant-with-high-occurrence-of-white-belly-grains
#8
Zhaomiao Lin, Xincheng Zhang, Zunxin Wang, Yutong Jiang, Zhenghui Liu, Danny Alexander, Ganghua Li, Shaohua Wang, Yanfeng Ding
BACKGROUND: Grain chalkiness is a highly undesirable trait deleterious to rice appearance and milling quality. The physiological and molecular foundation of chalkiness formation is still partially understood, because of the complex interactions between multiple genes and growing environments. RESULTS: We report the untargeted metabolomic analysis of grains from a notched-belly mutant (DY1102) with high percentage of white-belly, which predominantly occurs in the bottom part proximal to the embryo...
February 7, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28158973/genomics-and-evolutionary-aspect-of-calcium-signaling-event-in-calmodulin-and-calmodulin-like-proteins-in-plants
#9
Tapan Kumar Mohanta, Pradeep Kumar, Hanhong Bae
BACKGROUND: Ca(2+) ion is a versatile second messenger that operate in a wide ranges of cellular processes that impact nearly every aspect of life. Ca(2+) regulates gene expression and biotic and abiotic stress responses in organisms ranging from unicellular algae to multi-cellular higher plants through the cascades of calcium signaling processes. RESULTS: In this study, we deciphered the genomics and evolutionary aspects of calcium signaling event of calmodulin (CaM) and calmodulin like- (CML) proteins...
February 3, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28158969/diversity-analysis-of-cotton-gossypium-hirsutum-l-germplasm-using-the-cottonsnp63k-array
#10
Lori L Hinze, Amanda M Hulse-Kemp, Iain W Wilson, Qian-Hao Zhu, Danny J Llewellyn, Jen M Taylor, Andrew Spriggs, David D Fang, Mauricio Ulloa, John J Burke, Marc Giband, Jean-Marc Lacape, Allen Van Deynze, Joshua A Udall, Jodi A Scheffler, Steve Hague, Jonathan F Wendel, Alan E Pepper, James Frelichowski, Cindy T Lawley, Don C Jones, Richard G Percy, David M Stelly
BACKGROUND: Cotton germplasm resources contain beneficial alleles that can be exploited to develop germplasm adapted to emerging environmental and climate conditions. Accessions and lines have traditionally been characterized based on phenotypes, but phenotypic profiles are limited by the cost, time, and space required to make visual observations and measurements. With advances in molecular genetic methods, genotypic profiles are increasingly able to identify differences among accessions due to the larger number of genetic markers that can be measured...
February 3, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28158965/largely-different-contents-of-terpenoids-in-beef-red-flesh-tangerine-and-its-wild-type
#11
Wenyun Li, Cuihua Liu, Min He, Jinqiang Li, Yongqiang Cai, Yuhua Ma, Juan Xu
BACKGROUND: Niurouhong (Citrus reticulata Blanco. Niurouhong) (NRH) is a spontaneous beef-red flesh mutant with distinctive flavor compared with its wild type orange-red flesh Zhuhongju (ZHJ). To illustrate the biochemical mechanism of its special flesh color and flavor, fruits at commercial mature stage were used to profile the volatiles in the flavedo and determine the levels of carotenoids, limonoid aglycones and phytohormones in the juice sacs in two seasons. RESULTS: Our results showed the content of total volatile terpenoids in NRH was 1...
February 3, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28152982/ugt74s1-is-the-key-player-in-controlling-secoisolariciresinol-diglucoside-sdg-formation-in-flax
#12
Bourlaye Fofana, Kaushik Ghose, Jason McCallum, Frank M You, Sylvie Cloutier
BACKGROUND: Flax lignan, commonly known as secoisolariciresinol (SECO) diglucoside (SDG), has recently been reported with health-promoting activities, including its positive impact in metabolic diseases. However, not much was reported on the biosynthesis of SDG and its monoglucoside (SMG) until lately. Flax UGT74S1 was recently reported to sequentially glucosylate SECO into SMG and SDG in vitro. However, whether this gene is the only UGT achieving SECO glucosylation in flax was not known...
February 2, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28152978/chloroplast-genome-resources-and-molecular-markers-differentiate-rubber-dandelion-species-from-weedy-relatives
#13
Yingxiao Zhang, Brian J Iaffaldano, Xiaofeng Zhuang, John Cardina, Katrina Cornish
BACKGROUND: Rubber dandelion (Taraxacum kok-saghyz, TK) is being developed as a domestic source of natural rubber to meet increasing global demand. However, the domestication of TK is complicated by its colocation with two weedy dandelion species, Taraxacum brevicorniculatum (TB) and the common dandelion (Taraxacum officinale, TO). TB is often present as a seed contaminant within TK accessions, while TO is a pandemic weed, which may have the potential to hybridize with TK. To discriminate these species at the molecular level, and facilitate gene flow studies between the potential rubber crop, TK, and its weedy relatives, we generated genomic and marker resources for these three dandelion species...
February 2, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28148225/novel-arabidopsis-microtubule-associated-proteins-track-growing-microtubule-plus-ends
#14
Jeh Haur Wong, Takashi Hashimoto
BACKGROUND: Microtubules (MTs) are polarized polymers with highly dynamic plus ends that stochastically switch between growth and shrinkage phases. In eukaryotic cells, a plethora of MT-associated proteins (MAPs) regulate the dynamics and higher-order organization of MTs to mediate distinct cellular functions. Plus-end tracking proteins (+TIPs) are a group of MAPs that specifically accumulate at the growing MT plus ends, where they modulate the behavior of the MT plus ends and mediate interactions with cellular targets...
February 2, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28143404/conservation-and-diversification-of-the-mir166-family-in-soybean-and-potential-roles-of-newly-identified-mir166s
#15
Xuyan Li, Xin Xie, Ji Li, Yuhai Cui, Yanming Hou, Lulu Zhai, Xiao Wang, Yanli Fu, Ranran Liu, Shaomin Bian
BACKGROUND: microRNA166 (miR166) is a highly conserved family of miRNAs implicated in a wide range of cellular and physiological processes in plants. miR166 family generally comprises multiple miR166 members in plants, which might exhibit functional redundancy and specificity. The soybean miR166 family consists of 21 members according to the miRBase database. However, the evolutionary conservation and functional diversification of miR166 family members in soybean remain poorly understood...
February 1, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28143395/skewing-in-arabidopsis-roots-involves-disparate-environmental-signaling-pathways
#16
Eric R Schultz, Agata K Zupanska, Natasha J Sng, Anna-Lisa Paul, Robert J Ferl
BACKGROUND: Skewing root patterns provide key insights into root growth strategies and mechanisms that produce root architectures. Roots exhibit skewing and waving when grown on a tilted, impenetrable surface. The genetics guiding these morphologies have been examined, revealing that some Arabidopsis ecotypes skew and wave (e.g. WS), while others skew insignificantly but still wave (e.g. Col-0). The underlying molecular mechanisms of skewing and waving remain unclear. In this study, transcriptome data were derived from two Arabidopsis ecotypes, WS and Col-0, under three tilted growth conditions in order to identify candidate genes involved in skewing...
February 1, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28143411/genome-wide-analysis-of-the-aaap-gene-family-in-moso-bamboo-phyllostachys-edulis
#17
Huanlong Liu, Min Wu, Dongyue Zhu, Feng Pan, Yujiao Wang, Yue Wang, Yan Xiang
BACKGROUND: Members of the amino acid/auxin permease (AAAP) gene family play indispensable roles in various plant metabolism and biosynthesis processes. Comprehensive analysis of AAAP genes has been conducted in Arabidopsis, rice, maize and poplar, but has not been reported from moso bamboo. Phylogenetics, evolutionary patterns and further expression profiles analysis of the AAAP gene family in moso bamboo (Phyllostachys edulis) will increase our understanding of this important gene family...
January 31, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28129739/itraq-based-protein-profiling-and-fruit-quality-changes-at-different-development-stages-of-oriental-melon
#18
Xiaoou Guo, Jingjing Xu, Xiaohui Cui, Hao Chen, Hongyan Qi
BACKGROUND: Oriental melon is one of the most popular crops for its nutritional and flavour quality. Components that determine melon quality, such as sugar, colour, texture, flavour and aroma, among other factors, accumulate in different developmental stages. Thus, correlating the proteomic profiles with the biochemical and physiological changes occurring in the oriental melon is very important for advancing our understanding of oriental melon quality in the ripening processes. RESULTS: iTRAQ-based protein profiling was conducted on 'YuMeiren' oriental melon fruit at different developmental stages...
January 28, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28129734/erratum-to-a-novel-role-for-stomatal-carpenter-1-in-stomata-patterning
#19
Giulia Castorina, Samantha Fox, Chiara Tonelli, Massimo Galbiati, Lucio Conti
No abstract text is available yet for this article.
January 27, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28122511/distribution-of-some-pectic-and-arabinogalactan-protein-epitopes-during-solanum-lycopersicum-l-adventitious-root-development
#20
Katarzyna Sala, Katarzyna Malarz, Peter W Barlow, Ewa U Kurczyńska
BACKGROUND: The adventitious roots (AR) of plants share the same function as primary and lateral roots (LR), although their development is mainly an adaptive reaction to stress conditions. Regeneration of grafted plants is often accompanied by AR formation thus making the grafting technique a good model for studying AR initiation and development and their means of emergence. Pectins and arabinogalactan proteins (AGP) are helpful markers of particular cellular events, such as programmed cell death (PCD), elongation, proliferation or other differentiation events that accompany AR development...
January 25, 2017: BMC Plant Biology
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