Full Text Journal Articles by
Author A Psifidi

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Transcriptomic analysis of caecal tissue in inbred chicken lines that exhibit heritable differences in resistance to Campylobacter jejuni.

Kay M Russell, Jacqueline Smith, Abi Bremner, Cosmin Chintoan-Uta, Lonneke Vervelde, Androniki Psifidi, Mark P Stevens,

<h4>Background</h4>Campylobacter jejuni is the leading cause of bacterial gastroenteritis in humans and the handling or consumption of contaminated poultry meat is a key source of infection. Selective breeding of poultry that exhibit elevated resistance to Campylobacter is an attractive control strategy. Here we studied the global transcriptional response of inbred ... Read more >>

BMC Genomics (BMC genomics)
[2021, 22(1):411]

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A study on the use of thermal imaging as a diagnostic tool for the detection of digital dermatitis in dairy cattle.

A Anagnostopoulos, M Barden, J Tulloch, K Williams, B Griffiths, C Bedford, M Rudd, A Psifidi, G Banos, G Oikonomou,

Our aims were to (1) determine how interdigital skin temperature (IST), measured using infrared thermography, was associated with different stages of digital dermatitis (DD) lesions and (2) develop and validate models that can use IST measurements to identify cows with an active DD lesion. Between March 2019 and March 2020, ... Read more >>

J Dairy Sci (Journal of dairy science)
[2021, :]

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Targeted next-generation sequencing of Candidate Regions Identified by GWAS Revealed SNPs Associated with IBD in GSDs

Atiyeh Peiravan, Mazdak Salavati, Androniki Psifidi, Mellora Sharman, Andrew Kent, Penny Watson, Karin Allenspach, Dirk Werling,

Canine Inflammatory bowel disease (IBD) is a chronic multifactorial disease, resulting from complex interactions between the intestinal immune system, microbiota and environmental factors in genetically predisposed dogs. Previously, we identified several single nucleotide polymorphisms (SNP) and regions on chromosomes (Chr) 7, 9, 11 and 13 associated with IBD in German ... Read more >>

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Telomere attrition rates are associated with weather conditions and predict productive lifespan in dairy cattle.

Luise A Seeker, Sarah L Underwood, Rachael V Wilbourn, Jennifer Dorrens, Hannah Froy, Rebecca Holland, Joanna J Ilska, Androniki Psifidi, Ainsley Bagnall, Bruce Whitelaw, Mike Coffey, Georgios Banos, Daniel H Nussey,

Telomere length is predictive of adult health and survival across vertebrate species. However, we currently do not know whether such associations result from among-individual differences in telomere length determined genetically or by early-life environmental conditions, or from differences in the rate of telomere attrition over the course of life that ... Read more >>

Sci Rep (Scientific reports)
[2021, 11(1):5589]

Cited: 1 time

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Transcriptomic analysis of caecal tissue in inbred chicken lines that exhibit heritable differences in resistance to Campylobacter jejuni

Kay Russell, Jacqueline Smith, Abi Bremner, Cosmin Chintoan-Uta, Lonneke Vervelde, Androniki Psifidi, Mark Stevens,

<h4>Background: </h4> Campylobacter jejuni is the leading cause of bacterial gastroenteritis in humans and the handling or consumption of contaminated poultry meat is a key source of infection. Selective breeding of poultry that exhibit elevated resistance to Campylobacter is an attractive control strategy. Here we studied the global transcriptional response ... Read more >>

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Quantitative trait loci and transcriptome signatures associated with avian heritable resistance to Campylobacter.

Androniki Psifidi, Andreas Kranis, Lisa M Rothwell, Abi Bremner, Kay Russell, Diego Robledo, Stephen J Bush, Mark Fife, Paul M Hocking, Georgios Banos, David A Hume, Jim Kaufman, Richard A Bailey, Santiago Avendano, Kellie A Watson, Pete Kaiser, Mark P Stevens,

Campylobacter is the leading cause of bacterial foodborne gastroenteritis worldwide. Handling or consumption of contaminated poultry meat is a key risk factor for human campylobacteriosis. One potential control strategy is to select poultry with increased resistance to Campylobacter. We associated high-density genome-wide genotypes (600K single nucleotide polymorphisms) of 3000 commercial ... Read more >>

Sci Rep (Scientific reports)
[2021, 11(1):1623]

Cited: 1 time

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Integrating Genetic and Genomic Analyses of Combined Health Data Across Ecotypes to Improve Disease Resistance in Indigenous African Chickens.

Georgios Banos, Victoria Lindsay, Takele T Desta, Judy Bettridge, Enrique Sanchez-Molano, Adriana Vallejo-Trujillo, Oswald Matika, Tadelle Dessie, Paul Wigley, Robert M Christley, Peter Kaiser, Olivier Hanotte, Androniki Psifidi,

Poultry play an important role in the agriculture of many African countries. The majority of chickens in sub-Saharan Africa are indigenous, raised in villages under semi-scavenging conditions. Vaccinations and biosecurity measures rarely apply, and infectious diseases remain a major cause of mortality and reduced productivity. Genomic selection for disease resistance ... Read more >>

Front Genet (Frontiers in genetics)
[2020, 11:543890]

Cited: 1 time

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Life-long telomere attrition predicts health and lifespan in a large mammal

Luise Seeker, Sarah Underwood, Rachael Wilbourn, Jennifer Fairlie, Hannah Froy, Rebecca Holland, Joanna Ilska, Androniki Psifidi, Ainsley Bagnall, Bruce Whitelaw, Mike Coffey, Georgios Banos, Daniel Nussey,

Telomere length measured in blood cells is predictive of subsequent adult health and survival across a range of vertebrate species. However, we currently do not know whether such associations result from among-individual differences in telomere length determined genetically or by environmental factors early in life, or from differences in the ... Read more >>

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Genetic control of Campylobacter colonisation in broiler chickens: genomic and transcriptomic characterisation

Androniki Psifidi, Andreas Kranis, Lisa Rothwell, Abi Bremner, Kay Russell, Diego Robledo, Stephen Bush, Mark Fife, Paul Hocking, Georgios Banos, David Hume, Jim Kaufman, Richard Bailey, Santiago Avendano, Kellie Watson, Pete Kaiser, Mark. Stevens,

Campylobacter is the leading cause of bacterial foodborne gastroenteritis in many countries. Source attribution studies unequivocally identify the handling or consumption of contaminated poultry meat as the primary risk factor. One potential strategy to control Campylobacter is to select poultry with increased resistance to colonisation. We conducted genomic and transcriptomic ... Read more >>

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Role of Cecal Microbiota in the Differential Resistance of Inbred Chicken Lines to Colonization by Campylobacter jejuni.

Cosmin Chintoan-Uta, Trong Wisedchanwet, Laura Glendinning, Abi Bremner, Androniki Psifidi, Lonneke Vervelde, Kellie Watson, Mick Watson, Mark P Stevens,

Campylobacteriosis is the leading foodborne bacterial diarrheal illness in many countries, with up to 80% of human cases attributed to the avian reservoir. The only control strategies currently available are stringent on-farm biosecurity and carcass treatments. Heritable differences in the resistance of chicken lines to <i>Campylobacter</i> colonization have been reported ... Read more >>

Appl Environ Microbiol (Applied and environmental microbiology)
[2020, 86(7):]

Cited: 1 time

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Genetic and genomic analyses underpin the feasibility of concomitant genetic improvement of milk yield and mastitis resistance in dairy sheep.

Georgios Banos, Emily L Clark, Stephen J Bush, Prasun Dutta, Georgios Bramis, Georgios Arsenos, David A Hume, Androniki Psifidi,

Milk yield is the most important dairy sheep trait and constitutes the key genetic improvement goal via selective breeding. Mastitis is one of the most prevalent diseases, significantly impacting on animal welfare, milk yield and quality, while incurring substantial costs. Our objectives were to determine the feasibility of a concomitant ... Read more >>

PLoS One (PloS one)
[2019, 14(11):e0214346]

Cited: 2 times

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Analysis of the Progeny of Sibling Matings Reveals Regulatory Variation Impacting the Transcriptome of Immune Cells in Commercial Chickens.

Lucy Freem, Kim M Summers, Almas A Gheyas, Androniki Psifidi, Kay Boulton, Amanda MacCallum, Rakhi Harne, Jenny O'Dell, Stephen J Bush, David A Hume,

There is increasing recognition that the underlying genetic variation contributing to complex traits influences transcriptional regulation and can be detected at a population level as expression quantitative trait loci. At the level of an individual, allelic variation in transcriptional regulation of individual genes can be detected by measuring allele-specific expression ... Read more >>

Front Genet (Frontiers in genetics)
[2019, 10:1032]

Cited: 4 times

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The Genetic Architecture of Bovine Telomere Length in Early Life and Association With Animal Fitness.

Joanna J Ilska-Warner, Androniki Psifidi, Luise A Seeker, Rachael V Wilbourn, Sarah L Underwood, Jennifer Fairlie, Bruce Whitelaw, Daniel H Nussey, Mike P Coffey, Georgios Banos,

Health and survival are key goals for selective breeding in farm animals. Progress, however, is often limited by the low heritability of these animal fitness traits in addition to measurement difficulties. In this respect, relevant early-life biomarkers may be useful for breeding purposes. Telomere length (TL), measured in leukocytes, is ... Read more >>

Front Genet (Frontiers in genetics)
[2019, 10:1048]

Cited: 3 times

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Genomic analyses underpin the feasibility of concomitant genetic improvement of milk yield and mastitis resistance in dairy sheep

Georgios Banos, Emily Clark, Stephen Bush, Prasun Dutta, Georgios Bramis, Georgios Arsenos, David Hume, Androniki Psifidi,

Milk yield is the most important dairy sheep trait and constitutes the key genetic improvement goal via selective breeding. Mastitis is one of the most prevalent diseases, significantly impacting on animal welfare, milk yield and quality, while incurring substantial costs. Our objectives were to determine the feasibility of a concomitant ... Read more >>

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Phenotypic and genetic variation in the response of chickens to Eimeria tenella induced coccidiosis.

Kay Boulton, Kay Boulton, Matthew J Nolan, Zhiguang Wu, Androniki Psifidi, Valentina Riggio, Kimberley Harman, Stephen C Bishop, Pete Kaiser, Mitchell S Abrahamsen, Rachel Hawken, Kellie A Watson, Fiona M Tomley, Damer P Blake, David A Hume,

<h4>Background</h4>Coccidiosis is a major contributor to losses in poultry production. With emerging constraints on the use of in-feed prophylactic anticoccidial drugs and the relatively high costs of effective vaccines, there are commercial incentives to breed chickens with greater resistance to this important production disease. To identify phenotypic biomarkers that are ... Read more >>

Genet Sel Evol (Genetics, selection, evolution : GSE)
[2018, 50(1):63]

Cited: 9 times

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Dissecting the Genomic Architecture of Resistance to Eimeria maxima Parasitism in the Chicken.

Kay Boulton, Matthew J Nolan, Zhiguang Wu, Valentina Riggio, Oswald Matika, Kimberley Harman, Paul M Hocking, Nat Bumstead, Pat Hesketh, Andrew Archer, Stephen C Bishop, Pete Kaiser, Fiona M Tomley, David A Hume, Adrian L Smith, Damer P Blake, Androniki Psifidi,

Coccidiosis in poultry, caused by protozoan parasites of the genus <i>Eimeria</i>, is an intestinal disease with substantial economic impact. With the use of anticoccidial drugs under public and political pressure, and the comparatively higher cost of live-attenuated vaccines, an attractive complementary strategy for control is to breed chickens with increased ... Read more >>

Front Genet (Frontiers in genetics)
[2018, 9:528]

Cited: 6 times

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The Genomic Architecture of Fowl Typhoid Resistance in Commercial Layers.

Androniki Psifidi, Kay M Russell, Oswald Matika, Enrique Sánchez-Molano, Paul Wigley, Janet E Fulton, Mark P Stevens, Mark S Fife,

<i>Salmonella enterica</i> serovar Gallinarum causes devastating outbreaks of fowl typhoid across the globe, especially in developing countries. With the use of antimicrobial agents being reduced due to legislation and the absence of licensed vaccines in some parts of the world, an attractive complementary control strategy is to breed chickens for ... Read more >>

Front Genet (Frontiers in genetics)
[2018, 9:519]

Cited: 1 time

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Colonization of a commercial broiler line by Campylobacter is under limited genetic control and does not significantly impair performance or intestinal health.

Richard A Bailey, Andreas Kranis, Androniki Psifidi, Kellie A Watson, Lisa Rothwell, Paul M Hocking, Pete Kaiser, Mark P Stevens, Santiago Avendano,

Campylobacter is the leading bacterial cause of foodborne diarrheal illness in humans and source attribution studies unequivocally identify handling or consumption of poultry meat as a key risk factor. Campylobacter colonizes the avian intestines in high numbers and rapidly spreads within flocks. A need therefore exists to devise strategies to ... Read more >>

Poult Sci (Poultry science)
[2018, 97(12):4167-4176]

Cited: 6 times

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The role of local adaptation in sustainable village chicken production.

Judy M Bettridge, Androniki Psifidi, Zelalem G Terfa, Takele T Desta, Maria Lozano-Jaramillo, Tadelle Dessie, Pete Kaiser, Paul Wigley, Olivier Hanotte, Robert M Christley,

Village chickens are ubiquitous in smallholder farming systems, contributing to household, local and national economies under diverse environmental, economic and cultural settings. However, they are raised in challenging environments where productivity is low while mortality is high. There is much interest in utilizing indigenous genetic resources to produce a chicken ... Read more >>

Nat Sustain (Nature sustainability)
[2018, 1(10):574-582]

Cited: 7 times

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Association of plasma microRNA expression with age, genetic background and functional traits in dairy cattle.

Jason Ioannidis, Enrique Sánchez-Molano, Androniki Psifidi, F Xavier Donadeu, Georgios Banos,

A number of blood circulating microRNAs (miRNAs) are proven disease biomarkers and have been associated with ageing and longevity in multiple species. However, the role of circulating miRNAs in livestock species has not been fully studied. We hypothesise that plasma miRNA expression profiles are affected by age and genetic background, ... Read more >>

Sci Rep (Scientific reports)
[2018, 8(1):12955]

Cited: 5 times

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Bovine telomere dynamics and the association between telomere length and productive lifespan.

Luise A Seeker, Joanna J Ilska, Androniki Psifidi, Rachael V Wilbourn, Sarah L Underwood, Jennifer Fairlie, Rebecca Holland, Hannah Froy, Eliane Salvo-Chirnside, Ainsley Bagnall, Bruce Whitelaw, Mike P Coffey, Daniel H Nussey, Georgios Banos,

Average telomere length (TL) in blood cells has been shown to decline with age in a range of vertebrate species, and there is evidence that TL is a heritable trait associated with late-life health and mortality in humans. In non-human mammals, few studies to date have examined lifelong telomere dynamics ... Read more >>

Sci Rep (Scientific reports)
[2018, 8(1):12748]

Cited: 4 times

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Combination of novel and public RNA-seq datasets to generate an mRNA expression atlas for the domestic chicken.

Stephen J Bush, Lucy Freem, Amanda J MacCallum, Jenny O'Dell, Chunlei Wu, Cyrus Afrasiabi, Androniki Psifidi, Mark P Stevens, Jacqueline Smith, Kim M Summers, David A Hume,

<h4>Background</h4>The domestic chicken (Gallus gallus) is widely used as a model in developmental biology and is also an important livestock species. We describe a novel approach to data integration to generate an mRNA expression atlas for the chicken spanning major tissue types and developmental stages, using a diverse range of ... Read more >>

BMC Genomics (BMC genomics)
[2018, 19(1):594]

Cited: 10 times

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Illumina Next Generation Sequencing for the Analysis of Eimeria Populations in Commercial Broilers and Indigenous Chickens.

Ankit T Hinsu, Jalpa R Thakkar, Prakash G Koringa, Vladimir Vrba, Subhash J Jakhesara, Androniki Psifidi, Javier Guitian, Fiona M Tomley, Dharamsibhai N Rank, Muthusamy Raman, Chaitanya G Joshi, Damer P Blake,

<i>Eimeria</i> species parasites can cause the enteric disease coccidiosis, most notably in chickens where the economic and welfare implications are significant. Seven <i>Eimeria</i> species are recognized to infect chickens, although understanding of their regional occurrence, abundance, and population structure remains limited. Reports of <i>Eimeria</i> circulating in chickens across much of ... Read more >>

Front Vet Sci (Frontiers in veterinary science)
[2018, 5:176]

Cited: 6 times

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Microbial diversity and community composition of caecal microbiota in commercial and indigenous Indian chickens determined using 16s rDNA amplicon sequencing.

Ramesh J Pandit, Ankit T Hinsu, Namrata V Patel, Prakash G Koringa, Subhash J Jakhesara, Jalpa R Thakkar, Tejas M Shah, Georgina Limon, Androniki Psifidi, Javier Guitian, David A Hume, Fiona M Tomley, Dharamshibhai N Rank, M Raman, K G Tirumurugaan, Damer P Blake, Chaitanya G Joshi,

<h4>Background</h4>The caecal microbiota plays a key role in chicken health and performance, influencing digestion and absorption of nutrients, and contributing to defence against colonisation by invading pathogens. Measures of productivity and resistance to pathogen colonisation are directly influenced by chicken genotype, but host driven variation in microbiome structure is also ... Read more >>

Microbiome (Microbiome)
[2018, 6(1):115]

Cited: 33 times

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Microbiota composition, gene pool and its expression in Gir cattle (Bos indicus) rumen under different forage diets using metagenomic and metatranscriptomic approaches.

Ramesh J Pandit, Ankit T Hinsu, Shriram H Patel, Subhash J Jakhesara, Prakash G Koringa, Fosso Bruno, Androniki Psifidi, S V Shah, Chaitanya G Joshi,

Zebu (Bos indicus) is a domestic cattle species originating from the Indian subcontinent and now widely domesticated on several continents. In this study, we were particularly interested in understanding the functionally active rumen microbiota of an important Zebu breed, the Gir, under different dietary regimes. Metagenomic and metatranscriptomic data were ... Read more >>

Syst Appl Microbiol (Systematic and applied microbiology)
[2018, 41(4):374-385]

Cited: 7 times

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