keyword
MENU ▼
Read by QxMD icon Read
search

Plant breeding

keyword
https://www.readbyqxmd.com/read/28446328/combined-gc-and-uhplc-hr-ms-based-metabolomics-to-analyze-durable-anti-fungal-resistance-processes-in-cereals
#1
Rahel Bucher, Daniel Veyel, Lothar Willmitzer, Simon Krattinger, Beat Keller, Laurent Biglera
Introduction of durable resistance genes in crops is an important strategy to prevent yield loss caused by pathogens. The durable multi-pathogen resistance gene Lr34 originating from wheat is widely used in breeding, and is functionally transferable to barley and rice. The molecular resistance mechanism of Lr34, encoding for an adenosine triphosphate-binding cassette transporter, is not known yet. To understand the molecular function and the defense response of durable disease resistance in cereals, the metabolic response of Lr34 was investigated in, except for the Lr34 gene, genetically identical lines of barley, rice and wheat...
April 26, 2017: Chimia
https://www.readbyqxmd.com/read/28446247/difference-in-oxidative-stress-tolerance-between-rice-cultivars-estimated-with-chlorophyll-fluorescence-analysis
#2
Ichiro Kasajima
BACKGROUND: Oxidative stress is considered to be involved in growth retardation of plants when they are exposed to a variety of biotic and abiotic stresses. Despite its potential importance in improving crop production, comparative studies on oxidative stress tolerance between rice (Oryza sativa L.) cultivars are limited. This work describes the difference in term of oxidative stress tolerance between 72 rice cultivars. METHODS: 72 rice cultivars grown under naturally lit greenhouse were used in this study...
April 26, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28446022/a-survey-of-anthocyanin-composition-and-concentration-in-diverse-maize-germplasm
#3
Michael Paulsmeyer, Laura Chatham, Talon Becker, Megan West, Leslie West, John Juvik
Increasing consumer demand for natural ingredients in foods and beverages justifies investigations into more economic sources of natural colorants. In this study, 398 genetically diverse pigmented accessions of maize were analyzed using HPLC to characterize the diversity of anthocyanin composition and concentration in maize germplasm. 167 accessions were identified that could produce anthocyanins in the kernel pericarp or aleurone and were classified into compositional categories. Total anthocyanin content was highest in pericarp-pigmented accessions with flavanol-anthocyanin condensed forms, similar to the Andean Maíz Morado landraces...
April 26, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28445532/use-of-molecular-markers-in-identification-and-characterization-of-resistance-to-rice-blast-in-india
#4
Manoj Kumar Yadav, Aravindan S, Umakanta Ngangkham, H N Shubudhi, Manas Kumar Bag, Totan Adak, Sushmita Munda, Sanghamitra Samantaray, Mayabini Jena
Rice blast disease caused by Magnaporthe oryzae is one of the most destructive disease causing huge losses to rice yield in different parts of the world. Therefore, an attempt has been made to find out the resistance by screening and studying the genetic diversity of eighty released rice varieties by National Rice Research Institute, Cuttack (NRVs) using molecular markers linked to twelve major blast resistance (R) genes viz Pib, Piz, Piz-t, Pik, Pik-p, Pikm Pik-h, Pita/Pita-2, Pi2, Pi9, Pi1 and Pi5. Out of which, nineteen varieties (23...
2017: PloS One
https://www.readbyqxmd.com/read/28445423/anthocyanin-profiles-in-flowers-of-grape-hyacinth
#5
Qian Lou, Lin Wang, Hongli Liu, Yali Liu
Grape hyacinth (Muscari spp.) is a popular ornamental bulbous perennial famous for its blue flowers. To understand the chemical basis of the rich blue colors in this plant, anthocyanin profiles of six blue flowering grape hyacinths as well as one pink and one white cultivar were determined using high-performance liquid chromatography and mass spectrometry. Along with two known compounds, eight putative anthocyanins were identified in the tepals of grape hyacinth for the first time. The accumulation and distribution of anthocyanins in the plant showed significant cultivar and flower development specificity...
April 26, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28444347/fluxomics-links-cellular-functional-analyses-to-whole-plant-phenotyping
#6
Christophe Salon, Jean-Christophe Avice, Sophie Colombié, Martine Dieuaide-Noubhani, Karine Gallardo, Christian Jeudy, Alain Ourry, Marion Prudent, Anne-Sophie Voisin, Dominique Rolin
Fluxes through metabolic pathways reflect the integration of genetic and metabolic regulations. While it is attractive to measure all the mRNAs (transcriptome), all the proteins (proteome), and a large number of the metabolites (metabolome) in a given cellular system, linking and integrating this information remains difficult. Measurement of metabolome-wide fluxes (termed the fluxome) provides an integrated functional output of the cell machinery and a better tool to link functional analyses to plant phenotyping...
April 22, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28442795/becoming-weeds
#7
C Neal Stewart
A new resequencing analysis of weedy rice (Oryza sativa L.) biotypes illuminates distinct evolutionary paths and outcomes of de-domestication and ferality. This largest effort to date in weedy plant genomics gives a better understanding of weediness while also providing a promising source of alleles for rice breeding.
April 26, 2017: Nature Genetics
https://www.readbyqxmd.com/read/28441780/pollen-grain-preservation-and-fertility-in-valuable-commercial-rose-cultivars
#8
Annalisa Giovannini, Anca Macovei, Matteo Caser, Andrea Mansuino, Gian Guido Ghione, Marco Savona, Daniela Carbonera, Valentina Scariot, Alma Balestrazzi
In the cut flower market, traditional breeding is still the best way to achieve new rose cultivars. The geographical delocalization of cultivar constitution (generally made in Europe and North America) and plant cultivation (large areas in Africa and South America) represents a limit point for crossing and selection. Rose breeders often need to overcome geographical distances, resulting in asynchrony in flowering among crossing parents, by storing and sending pollen. Hence, a key aspect in breeding programs is linked to pollen availability and conservation, jointly with the identification of parameters related to pollen fertility...
April 24, 2017: Plants (Basel, Switzerland)
https://www.readbyqxmd.com/read/28439286/snp-discovery-and-genetic-variation-of-candidate-genes-relevant-to-heat-tolerance-and-agronomic-traits-in-natural-populations-of-sand-rice-agriophyllum-squarrosum
#9
Pengshan Zhao, Jiwei Zhang, Chaoju Qian, Qin Zhou, Xin Zhao, Guoxiong Chen, Xiao-Fei Ma
The extreme stress tolerance and high nutritional value of sand rice (Agriophyllum squarrosum) make it attractive for use as an alternative crop in response to concerns about ongoing climate change and future food security. However, a lack of genetic information hinders understanding of the mechanisms underpinning the morphological and physiological adaptations of sand rice. In the present study, we sequenced and analyzed the transcriptomes of two individuals representing semi-arid [Naiman (NM)] and arid [Shapotou (SPT)] sand rice genotypes...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28439278/exploration-of-elite-stilbene-synthase-alleles-for-resveratrol-concentration-in-wild-chinese-vitis-spp-and-vitis-cultivars
#10
Xianbo Zheng, Jiangli Shi, Yinmei Yu, Yanlong Shen, Bin Tan, Xia Ye, Jidong Li, Jiancan Feng
Resveratrol contributes to a plant's tolerance of various abiotic and biotic stresses and is highly beneficial to human health. A search for elite alleles affecting resveratrol production was undertaken to find useful grapevine germplasm resources. Resveratrol levels in both berry skins and leaves were determined in 95 grapevine accessions (including 50 wild Chinese grapevine accessions and 45 cultivars) during two consecutive years. Resveratrol contents were higher in berry skins than in leaves and in wild Chinese grapevines than in grapevine cultivars...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28437556/inheritance-of-bacterial-spot-resistance-in-capsicum-annuum-var-annuum
#11
L R A Silva, R Rodrigues, S Pimenta, J W S Correa, M S B Araújo, C S Bento, C P Sudré
Since 2008, Brazil is the largest consumer of agrochemicals, which increases production costs and risks of agricultural products, environment, and farmers' contamination. Sweet pepper, which is one of the main consumed vegetables in the country, is on top of the list of the most sprayed crops. The bacterial spot, caused by Xanthomonas spp, is one of the most damaging diseases of pepper crops. Genetic resistant consists of a suitable way of disease control, but development of durable resistant cultivars as well as understanding of plant-bacterium interaction is being a challenge for plant breeders and pathologists worldwide...
April 20, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28436656/cellulose-anionic-hydrogels-based-on-cellulose-nanofibers-as-natural-stimulants-for-seed-germination-and-seedling-growth
#12
Hao Zhang, Minmin Yang, Qian Luan, Hu Tang, Fenghong Huang, Xia Xiang, Chen Yang, Yuping Bao
Cellulose anionic hydrogels were successfully prepared from dissolving Tempo-oxidized cellulose nanofibers in NaOH/urea aqueous solution and then crosslinked with epichlorohydrin. The hydrogels exhibit microporous structure and high hydrophilicity, contribute to the excellent water absorption property. The growth indexes including the germination rate, root length, shoot length, fresh weight and dry weight of seedlings were investigated and the cellulose anionic hydrogel showed no significant difference compared with soil medium...
April 24, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28434019/recent-developments-in-olive-olea-europaea-l-genetics-and-genomics-applications-in-taxonomy-varietal-identification-traceability-and-breeding
#13
REVIEW
L Sebastiani, M Busconi
The latest results in DNA markers application and genomic studies in olive. Olive (Olea europaea L.) is among the most ancient tree crops worldwide and the source of oil beneficial for human health. Despite this, few data on olive genetics are available in comparison with other cultivated plant species. Molecular information is mainly linked to molecular markers and their application to the study of DNA variation in the Olea europaea complex. In terms of genomic research, efforts have been made in sequencing, heralding the era of olive genomic...
April 22, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28431521/a-reference-floral-transcriptome-of-sexual-and-apomictic-paspalum-notatum
#14
Juan Pablo A Ortiz, Santiago Revale, Lorena A Siena, Maricel Podio, Luciana Delgado, Juliana Stein, Olivier Leblanc, Silvina C Pessino
BACKGROUND: Paspalum notatum Flügge is a subtropical grass native to South America, which includes sexual diploid and apomictic polyploid biotypes. In the past decade, a number of apomixis-associated genes were discovered in this species through genetic mapping and differential expression surveys. However, the scarce information on Paspalum sequences available in public databanks limited annotations and functional predictions for these candidates. RESULTS: We used a long-read 454/Roche FLX+ sequencing strategy to produce robust reference transcriptome datasets from florets of sexual and apomictic Paspalum notatum genotypes and delivered a list of transcripts showing differential representation in both reproductive types...
April 21, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28430944/plant-microbial-diversity-is-suggested-as-the-key-to-future-biocontrol-and-health-trends
#15
Gabriele Berg, Martina Köberl, Daria Rybakova, Henry Müller, Rita Grosch, Kornelia Smalla
The microbiome of plants plays a crucial role in both plant and ecosystem health. Rapid advances in multi-omics tools are dramatically increasing access to the plant microbiome and consequently to the identification of its links with diseases and to the control of those diseases. Recent insights reveal a close, often symbiotic relationship between microorganisms and plants. Microorganisms can stimulate germination and plant growth, prevent diseases, and promote stress resistance and general fitness. Plants and their associated microorganisms form a holo-biont and have to be considered as co-evolved species assemblages consisting of bacterial, archaeal, and diverse eukaryotic species...
April 19, 2017: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/28430157/development-of-user-friendly-method-to-distinguish-subspecies-of-the-korean-medicinal-herb-perilla-frutescens-using-multiplex-pcr
#16
Yonguk Kim, Ah-Young Kim, Ara Jo, Hakjoon Choi, Seung-Sik Cho, Chulyung Choi
Perilla (Perilla frutescens) is an economically and culturally important plant in East Asia. Plant breeding between cultivars has enhanced the genetic diversity of perilla overall, but means that functionally diverse subspecies are more difficult to identify and distinguish. In this study, we developed gene-based DNA markers to distinguish between the Korean herbal medicinal perilla varieties. We identified informative simple sequence repeat (SSR) regions on the promoter regions of the Myb-P1 and dihydroflavonol 4-reductase (DFR) genes, as well as a large insertion-deletion (indel) region in the limonene synthase (LS) gene, and developed markers to characterize the distinct subspecies differences (PfMyb-P1pro, PfDFRpro, and PfLS, respectively)...
April 21, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28429576/suppression-of-osmads7-in-rice-endosperm-stabilizes-amylose-content-under-high-temperature-stress
#17
Hua Zhang, Heng Xu, Mengjie Feng, Ying Zhu
High temperature significantly alters the amylose content of rice, resulting in mature grains with poor eating quality. However, only few genes and/or quantitative trait loci (QTLs) involved in this process have been isolated and the molecular mechanisms of this effect remain unclear. Here, we describe a floral organ identity gene, OsMADS7, involved in stabilizing rice amylose content at high temperature. OsMADS7 is greatly induced by high temperature at the early filling stage. Constitutive suppression of OsMADS7 stabilizes amylose content under high temperature stress but results in low spikelet fertility...
April 20, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28428856/forage-plants-of-an-arctic-nesting-herbivore-show-larger-warming-response-in-breeding-than-wintering-grounds-potentially-disrupting-migration-phenology
#18
Thomas K Lameris, Femke Jochems, Alexandra J van der Graaf, Mattias Andersson, Juul Limpens, Bart A Nolet
During spring migration, herbivorous waterfowl breeding in the Arctic depend on peaks in the supply of nitrogen-rich forage plants, following a "green wave" of grass growth along their flyway to fuel migration and reproduction. The effects of climate warming on forage plant growth are expected to be larger at the Arctic breeding grounds than in temperate wintering grounds, potentially disrupting this green wave and causing waterfowl to mistime their arrival on the breeding grounds. We studied the potential effect of climate warming on timing of food peaks along the migratory flyway of the Russian population of barnacle geese using a warming experiment with open-top chambers...
April 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28428141/temporal-impact-of-the-vascular-wilt-pathogen-verticillium-dahliae-on-tomato-root-proteome
#19
Katja Witzel, Anja Buhtz, Rita Grosch
The soil-borne fungus Verticillium dahliae is the causal agent of wilting disease and affects a wide range of plant species worldwide. Here, we report on the time-resolved analysis of the tomato root proteome in response to fungal colonization. Tomato (Solanum lycopersicum cv. Hildares) was inoculated with V. dahliae at the two-leaf stage and roots were harvested at 7, 14 and 21 days post inoculation (dpi). In order to identify proteins related to the fungal spread at the different time points, a subsequent proteome analysis by two-dimensional differential gel electrophoresis (2D-DIGE) was conducted on samples from three independent experiments...
April 17, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28427341/reactive-oxygen-species-mediate-tapetal-programmed-cell-death-in-tobacco-and-tomato
#20
Shi-Xia Yu, Qiang-Nan Feng, Hong-Tao Xie, Sha Li, Yan Zhang
BACKGROUND: Hybrid vigor is highly valued in the agricultural industry. Male sterility is an important trait for crop breeding. Pollen development is under strict control of both gametophytic and sporophytic factors, and defects in this process can result in male sterility. Both in the dicot Arabidopsis and in the moncot rice, proper timing of programmed cell death (PCD) in the tapetum ensures pollen development. Dynamic ROS levels have been reported to control tapetal PCD, and thus pollen development, in Arabidopsis and rice...
April 20, 2017: BMC Plant Biology
keyword
keyword
5327
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"