RT Journal A1 Reid, Adam J. A1 Blake, Damer P. A1 Ansari, Hifzur R. A1 Billington, Karen A1 Browne, Hilary P. A1 Bryant, Josephine A1 Dunn, Matt A1 Hung, Stacy S. A1 Kawahara, Fumiya A1 Miranda-Saavedra, Diego A1 Malas, Tareq B. A1 Mourier, Tobias A1 Naghra, Hardeep A1 Nair, Mridul A1 Otto, Thomas D. A1 Rawlings, Neil D. A1 Rivailler, Pierre A1 Sanchez-Flores, Alejandro A1 Sanders, Mandy A1 Subramaniam, Chandra A1 Tay, Yea-Ling A1 Woo, Yong A1 Wu, Xikun A1 Barrell, Bart A1 Dear, Paul H. A1 Doerig, Christian A1 Gruber, Arthur A1 Ivens, Alasdair C. A1 Parkinson, John A1 Rajandream, Marie-Adèle A1 Shirley, Martin W. A1 Wan, Kiew-Lian A1 Berriman, Matthew A1 Tomley, Fiona M. A1 Pain, Arnab T1 Genomic analysis of the causative agents of coccidiosis in domestic chickens JF Genome Research JO Genome Research YR 2014 FD October 01 VO 24 IS 10 SP 1676 OP 1685 DO 10.1101/gr.168955.113 UL http://genome.cshlp.org/content/24/10/1676.abstract AB Global production of chickens has trebled in the past two decades and they are now the most important source of dietary animal protein worldwide. Chickens are subject to many infectious diseases that reduce their performance and productivity. Coccidiosis, caused by apicomplexan protozoa of the genus Eimeria, is one of the most important poultry diseases. Understanding the biology of Eimeria parasites underpins development of new drugs and vaccines needed to improve global food security. We have produced annotated genome sequences of all seven species of Eimeria that infect domestic chickens, which reveal the full extent of previously described repeat-rich and repeat-poor regions and show that these parasites possess the most repeat-rich proteomes ever described. Furthermore, while no other apicomplexan has been found to possess retrotransposons, Eimeria is home to a family of chromoviruses. Analysis of Eimeria genes involved in basic biology and host-parasite interaction highlights adaptations to a relatively simple developmental life cycle and a complex array of co-expressed surface proteins involved in host cell binding.