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https://www.readbyqxmd.com/read/28231704/genetic-correlations-between-behavioural-responses-and-performance-traits-in-laying-hens
#1
Iwona Rozempolska-Rucińska, Grzegorz Zięba, Lucyna Kibała, Tomasz Paweł Próchniak, Marek Łukaszewicz
The aim of the study was to evaluate genetic correlations between the behavioural profile and performance in laying hens as an indirect answer to the question whether the observed behavioural responses are associated with increased levels of stress in these birds. The assessment of birds' temperament was carried out using the Novel Objects Test. The behavioural test was conducted in two successive generations comprising 9483 Rhode Island White birds (approx. 4700 individuals per generation) and 4326 Rhode Island Red birds (approx...
February 23, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28231697/the-fecal-microbiota-composition-of-boar-duroc-yorkshire-landrace-and-hampshire-pigs
#2
Yingping Xiao, Kaifeng Li, Yun Xiang, Weidong Zhou, Guohong Gui, Hua Yang
To investigate the effect of host genetics on gut microbial diversity, we performed a structural survey of the fecal microbiota of four purebred boar pig lines: Duroc, Landrace, Hampshire and Yorkshire. The V3-V4 regions of the 16S rRNA genes were amplified and sequenced. A total of 783 OTUs were shared by all breeds, whereas other OTUs were breed-specific. Firmicutes and Bacteroidetes dominated the majority of the fecal microbiota; Clostridia, Bacilli and Bacteroidia were the major classes. Nine predominant genera were observed in all breeds and eight of them can produce short-chain fatty acids (SCFAs)...
February 23, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28231696/performance-differences-of-rhode-island-red-bashang-long-tail-chicken-and-their-reciprocal-crossbreds-under-natural-cold-stress
#3
Shanshan Xie, Xukai Yang, Yahui Gao, Wenjie Jiao, Xinghua Li, Yajie Li, Zhonghua Ning
Objective: The Bashang Long-tail chicken (BS), an indigenous Chinese breed, is considered cold tolerant. We selected BS, the Rhode Island Red (RIR), and their reciprocal crossbreds for the present study. The objectives were: 1) to validate whether BS is cold tolerant and whether egg production and cold tolerance of crossbreds could be improved; and 2) to determine the physiological characteristics that underlie cold tolerance and favorable egg production performance in cold environments...
February 23, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28231525/construction-of-new-est-ssrs-for-fusarium-resistant-wheat-breeding
#4
Aysen Yumurtaci, Hulya Sipahi, Ayed Al-Abdallat, Abdulqader Jighly, Michael Baum
Surveying Fusarium resistance in wheat with easy applicable molecular markers such as simple sequence repeats (SSRs) is a prerequest for molecular breeding. Expressed sequence tags (ESTs) are one of the main sources for development of new SSR candidates. Therefore, 18.292 publicly available wheat ESTs were mined and genotyping of newly developed 55 EST-SSR derived primer pairs produced clear fragments in ten wheat cultivars carrying different levels of Fusarium resistance. Among the proved markers, 23 polymorphic EST-SSRs were obtained and related alleles were mostly found on B and D genome...
February 11, 2017: Computational Biology and Chemistry
https://www.readbyqxmd.com/read/28231383/the-pangenome-of-hexaploid-bread-wheat
#5
Juan D Montenegro, Agnieszka A Golicz, Philipp E Bayer, Bhavna Hurgobin, HueyTyng Lee, Chon-Kit Kenneth Chan, Paul Visendi, Kaitao Lai, Jaroslav Doležel, Jacqueline Batley, David Edwards
There is an increasing understanding that gene presence absence variation plays an important role in the heritability of agronomic traits, however there have been relatively few studies on gene presence absence variation in crop species. Hexaploid wheat is one of the most important food crops in the world and intensive breeding has reduced the genetic diversity of elite cultivars. Major efforts have produced draft genome assemblies for the cultivar Chinese Spring, but it is unknown how well this represents the genome diversity found in current modern elite cultivars...
February 23, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28231290/mapping-the-sensory-perception-of-apple-using-descriptive-sensory-evaluation-in-a-genome-wide-association-study
#6
Beatrice Amyotte, Amy J Bowen, Travis Banks, Istvan Rajcan, Daryl J Somers
Breeding apples is a long-term endeavour and it is imperative that new cultivars are selected to have outstanding consumer appeal. This study has taken the approach of merging sensory science with genome wide association analyses in order to map the human perception of apple flavour and texture onto the apple genome. The goal was to identify genomic associations that could be used in breeding apples for improved fruit quality. A collection of 85 apple cultivars was examined over two years through descriptive sensory evaluation by a trained sensory panel...
2017: PloS One
https://www.readbyqxmd.com/read/28231184/mineral-nutritional-yield-and-nutrient-density-of-locally-adapted-wheat-genotypes-under-organic-production
#7
Sergio Daniel Moreira-Ascarrunz, Hans Larsson, Maria Luisa Prieto-Linde, Eva Johansson
The aim of the present investigation was to investigate the nutritional yield, nutrient density, stability, and adaptability of organically produced wheat for sustainable and nutritional high value food production. This study evaluated the nutritional yield of four minerals (Fe, Zn, Cu, and Mg) in 19 wheat genotypes, selected as being locally adapted under organic agriculture conditions. The new metric of nutritional yield was calculated for each genotype and they were evaluated for stability using the Additive Main effects and Multiplicative Interaction (AMMI) stability analysis and for genotypic value, stability, and adaptability using the Best Linear Unbiased Prediction (BLUP procedure)...
December 20, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28230800/mutilating-procedures-management-practices-and-housing-conditions-that-may-affect-the-welfare-of-farm-animals-implications-for-welfare-research
#8
Rebecca E Nordquist, Franz Josef van der Staay, Frank J C M van Eerdenburg, Francisca C Velkers, Lisa Fijn, Saskia S Arndt
A number of mutilating procedures, such as dehorning in cattle and goats and beak trimming in laying hens, are common in farm animal husbandry systems in an attempt to prevent or solve problems, such as injuries from horns or feather pecking. These procedures and other practices, such as early maternal separation, overcrowding, and barren housing conditions, raise concerns about animal welfare. Efforts to ensure or improve animal welfare involve adapting the animal to its environment, i.e., by selective breeding (e...
February 21, 2017: Animals: An Open Access Journal From MDPI
https://www.readbyqxmd.com/read/28230329/integrating-trans-abdominal-ultrasonography-with-fecal-steroid-metabolite-monitoring-to-accurately-diagnose-pregnancy-and-predict-the-timing-of-parturition-in-the-red-panda-ailurus-fulgens-styani
#9
Erin Curry, Lissa J Browning, Paul Reinhart, Terri L Roth
Red pandas (Ailurus fulgens styani) exhibit a variable gestation length and may experience a pseudopregnancy indistinguishable from true pregnancy; therefore, it is not possible to deduce an individual's true pregnancy status and parturition date based on breeding dates or fecal progesterone excretion patterns alone. The goal of this study was to evaluate the use of transabdominal ultrasonography for pregnancy diagnosis in red pandas. Two to three females were monitored over 4 consecutive years, generating a total of seven profiles (four pregnancies, two pseudopregnancies, and one lost pregnancy)...
February 23, 2017: Zoo Biology
https://www.readbyqxmd.com/read/28230234/nasal-infestation-by-linguatula-serrata-in-a-dog-in-the-uk-a-case-report
#10
E Villedieu, R F Sanchez, R E Jepson, G Ter Haar
A two-year-old, female neutered, cross-breed dog imported from Romania was diagnosed with nasal infestation of Linguatula serrata after she sneezed out an adult female. The dog was presented with mucopurulent/sanguinous nasal discharge, marked left-sided exophthalmia, conjunctival hyperaemia and chemosis. Computed tomography and left frontal sinusotomy revealed no further evidence of adult parasites. In addition, there was no evidence of egg shedding in the nasal secretions or faeces. Clinical signs resolved within 48 hours of sinusotomy, and with systemic broad-spectrum antibiotics and non-steroidal anti-inflammatory drugs...
February 23, 2017: Journal of Small Animal Practice
https://www.readbyqxmd.com/read/28229071/bilateral-vertebral-venous-sinus-thrombosis-causing-cervical-spinal-cord-compression-in-a-dog
#11
Kathryn E Rhue, Amanda R Taylor, Robert C Cole, Randolph L Winter
A 10-year-old male neutered mixed breed dog was evaluated for cervical hyperesthesia and tetraparesis. Magnetic resonance imaging of the brain and cervical spinal cord identified an extradural compressive lesion over the body of C2 caused by marked dilation of the vertebral venous sinuses. Following intravenous contrast administration both vertebral sinuses had heterogeneous contrast enhancement consistent with incomplete thrombi formation. An abdominal ultrasound also showed a distal aortic thrombus. A definitive cause for the thrombi formation was not identified, but the patient had several predisposing factors which may have contributed...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28228769/toward-an-evolved-concept-of-landrace
#12
Francesc Casañas, Joan Simó, Joan Casals, Jaime Prohens
The term "landrace" has generally been defined as a cultivated, genetically heterogeneous variety that has evolved in a certain ecogeographical area and is therefore adapted to the edaphic and climatic conditions and to its traditional management and uses. Despite being considered by many to be inalterable, landraces have been and are in a constant state of evolution as a result of natural and artificial selection. Many landraces have disappeared from cultivation but are preserved in gene banks. Using modern selection and breeding technology tools to shape these preserved landraces together with the ones that are still cultivated is a further step in their evolution in order to preserve their agricultural significance...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28228768/genome-wide-single-nucleotide-polymorphisms-in-cms-and-restorer-lines-discovered-by-genotyping-using-sequencing-and-association-with-marker-combining-ability-for-12-yield-related-traits-in-oryza-sativa-l-subsp-japonica
#13
Imdad U Zaid, Weijie Tang, Erbao Liu, Sana U Khan, Hui Wang, Edzesi W Mawuli, Delin Hong
Heterosis or hybrid vigor is closely related with general combing ability (GCA) of parents and special combining ability (SCA) of combinations. The evaluation of GCA and SCA facilitate selection of parents and combinations in heterosis breeding. In order to improve combining ability (CA) by molecular marker assist selection, it is necessary to identify marker loci associated with the CA. To identify the single nucleotide polymorphisms (SNP) loci associated with CA in the parental genomes of japonica rice, genome-wide discovered SNP loci were tested for association with the CA of 18 parents for 12 yield-related traits...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28228765/field-performance-of-transgenic-sugarcane-lines-resistant-to-sugarcane-mosaic-virus
#14
Wei Yao, Miaohong Ruan, Lifang Qin, Chuanyu Yang, Rukai Chen, Baoshan Chen, Muqing Zhang
Sugarcane mosaic disease is mainly caused by the sugarcane mosaic virus (SCMV), which can significantly reduce stalk yield and sucrose content of sugarcane in the field. Coat protein mediated protection (CPMP) is an effective strategy to improve virus resistance. A 2-year field study was conducted to compare five independent transgenic sugarcane lines carrying the SCMV-CP gene (i.e., B2, B36, B38, B48, and B51) with the wild-type parental clone Badila (WT). Agronomic performance, resistance to SCMV infection, and transgene stability were evaluated and compared with the wild-type parental clone Badila (WT) at four experimental locations in China across two successive seasons, i...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28228687/reproductive-biology-and-variation-of-nuclear-ribosomal-its-and-ets-sequences-in-the-calligonum-mongolicum-complex-polygonaceae
#15
Wei Shi, Jun Wen, Yanfeng Zhao, Gabriel Johnson, Borong Pan
To explore the biosystematics of the Calligonum mongolicum complex (Polygonaceae), the flowering phenological period, breeding and pollination characters and seed set of the complex (Calligonum Mongolicum Turze, Calligonum chinense A. Los., Calligonum gobicum A. Los., Calligonum pumilum A. Los. and Calligonum zaidamense A. Los.) were documented in the Turpan Eremophyte Botanical Garden, China. The sequences of the nuclear ribosomal ITS and ETS region were employed to differentiate the Calligonum mongolicum complex and other species in sect...
2017: PhytoKeys
https://www.readbyqxmd.com/read/28228439/loss-of-pollen-specific-phospholipase-not-like-dad-triggers-gynogenesis-in-maize
#16
Laurine M Gilles, Abdelsabour Khaled, Jean-Baptiste Laffaire, Sandrine Chaignon, Ghislaine Gendrot, Jérôme Laplaige, Hélène Bergès, Genséric Beydon, Vincent Bayle, Pierre Barret, Jordi Comadran, Jean-Pierre Martinant, Peter M Rogowsky, Thomas Widiez
Gynogenesis is an asexual mode of reproduction common to animals and plants, in which stimuli from the sperm cell trigger the development of the unfertilized egg cell into a haploid embryo. Fine mapping restricted a major maize QTL (quantitative trait locus) responsible for the aptitude of inducer lines to trigger gynogenesis to a zone containing a single gene NOT LIKE DAD (NLD) coding for a patatin-like phospholipase A. In all surveyed inducer lines, NLD carries a 4-bp insertion leading to a predicted truncated protein...
February 22, 2017: EMBO Journal
https://www.readbyqxmd.com/read/28228419/seasonal-expressions-of-follicle-stimulating-hormone-receptor-and-luteinizing-hormone-receptor-in-the-scented-gland-of-male-muskrat-ondatra-zibethicus
#17
Haolin Zhang, Fengwei Zhang, Manyu Zhu, Junjie Wang, Xia Sheng, Zhengrong Yuan, Yingying Han, Gen Watanabe, Kazuyoshi Taya, Qiang Weng
Accumulating evidence has shown that follicle stimulating hormone (FSH) and luteinizing hormone (LH) may influence the functions of non-gonadal tissues, in addition to their classic target gonads. Our previous studies revealed that the scented glands of male muskrats expressed prolactin receptor, steroidogenic enzymes and inhibin/activin subunits. To further seek the evidence of the activities of pituitary gonadotropins in scented glands, we investigated the seasonal expression patterns of FSH receptor (FSHR) and LH/choriogonadotropin receptor (LHCGR)...
February 22, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28228159/the-effect-of-interspecific-competition-on-the-temporal-dynamics-of-aedes-albopictus-and-culex-pipiens
#18
Giovanni Marini, Giorgio Guzzetta, Frederic Baldacchino, Daniele Arnoldi, Fabrizio Montarsi, Gioia Capelli, Annapaola Rizzoli, Stefano Merler, Roberto Rosà
BACKGROUND: Aedes albopictus and Culex pipiens larvae reared in the same breeding site compete for resources, with an asymmetrical outcome that disadvantages only the latter species. The impact of these interactions on the overall ecology of these two species has not yet been assessed in the natural environment. In the present study, the temporal patterns of adult female mosquitoes from both species were analysed in north-eastern Italy, and substantial temporal shifts between abundance curves of Cx...
February 23, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28228142/change-in-anopheles-richness-and-composition-in-response-to-artificial-flooding-during-the-creation-of-the-jirau-hydroelectric-dam-in-porto-velho-brazil
#19
Moreno S Rodrigures, Elis P Batista, Alexandre A Silva, Fábio M Costa, Verissimo A S Neto, Luiz Herman S Gil
BACKGROUND: Anopheles mosquitoes are the only vectors of human malaria. Anopheles species use standing water as breeding sites. Human activities, like the creation of an artificial lake during the implementation of hydroelectric power plants, lead to changes in environmental characteristics and, therefore, may changes the species richness and composition of Anopheles mosquitoes. The aim of the present study was to verify whether or not there is an association between the artificial flooding resulting from the construction of the Jirau hydroelectric power plant, and the richness and composition of anophelines...
February 22, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28226236/new-strategies-and-tools-in-quantitative-genetics-how-to-go-from-the-phenotype-to-the-genotype
#20
C Bazakos, M Hanemian, C Trontin, J M Jiménez-Gómez, O Loudet
Quantitative genetics has a long history in plants: It has been used to study specific biological processes, identify the factors important for trait evolution, and breed new crop varieties. These classical approaches to quantitative trait locus mapping have naturally improved with technology. In this review, we show how quantitative genetics has evolved recently in plants and how new developments in phenotyping, population generation, sequencing, gene manipulation, and statistics are rejuvenating both the classical linkage mapping approaches (for example, through nested association mapping) as well as the more recently developed genome-wide association studies...
February 6, 2017: Annual Review of Plant Biology
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