{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,25]],"date-time":"2026-07-25T02:11:04Z","timestamp":1784945464973,"version":"3.55.0"},"reference-count":108,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2021,8,16]],"date-time":"2021-08-16T00:00:00Z","timestamp":1629072000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100005419","name":"Syngenta Foundation for Sustainable Agriculture","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100005419","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000865","name":"Bill and Melinda Gates Foundation","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100000865","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100004441","name":"Swedish International Development Cooperation Agency","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100004441","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000200","name":"United States Agency for International Development","doi-asserted-by":"publisher","award":["BFS-G-11-00002"],"award-info":[{"award-number":["BFS-G-11-00002"]}],"id":[{"id":"10.13039\/100000200","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Genet."],"abstract":"<jats:p>A chicken genome has several regions with quantitative trait loci (QTLs). However, replication and confirmation of QTL effects are required particularly in African chicken populations. This study identified single nucleotide polymorphisms (SNPs) and putative genes responsible for body weight (BW) and antibody response (AbR) to Newcastle disease (ND) in Rwanda indigenous chicken (IC) using genome-wide association studies (GWAS). Multiple testing was corrected using chromosomal false detection rates of 5 and 10% for significant and suggestive thresholds, respectively. BioMart data mining and variant effect predictor tools were used to annotate SNPs and candidate genes, respectively. A total of four significant SNPs (rs74098018, rs13792572, rs314702374, and rs14123335) significantly (<jats:italic>p<\/jats:italic> \u2264 7.6E\u22125) associated with BW were identified on chromosomes (CHRs) 8, 11, and 19. In the vicinity of these SNPs, four genes such as pre-B-cell leukaemia homeobox 1 (PBX1), GPATCH1, MPHOSPH6, and MRM1 were identified. Four other significant SNPs (rs314787954, rs13623466, rs13910430, and rs737507850) all located on chromosome 1 were strongly (<jats:italic>p<\/jats:italic> \u2264 7.6E\u22125) associated with chicken antibody response to ND. The closest genes to these four SNPs were cell division cycle 16 (CDC16), zinc finger, BED-type containing 1 (ZBED1), myxovirus (influenza virus) resistance 1 (MX1), and growth factor receptor bound protein 2 (GRB2) related adaptor protein 2 (GRAP2). Besides, other SNPs and genes suggestively (<jats:italic>p<\/jats:italic> \u2264 1.5E\u22125) associated with BW and antibody response to ND were reported. This work offers a useful entry point for the discovery of causative genes accountable for essential QTLs regulating BW and antibody response to ND traits. Results provide auspicious genes and SNP-based markers that can be used in the improvement of growth performance and ND resistance in IC populations based on gene-based and\/or marker-assisted breeding selection.<\/jats:p>","DOI":"10.3389\/fgene.2021.723980","type":"journal-article","created":{"date-parts":[[2021,8,16]],"date-time":"2021-08-16T14:18:09Z","timestamp":1629123489000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":20,"title":["Genome-Wide Association Study of Growth Performance and Immune Response to Newcastle Disease Virus of Indigenous Chicken in Rwanda"],"prefix":"10.3389","volume":"12","author":[{"given":"Richard","family":"Habimana","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kiplangat","family":"Ngeno","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tobias Otieno","family":"Okeno","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Claire D\u2019 andre","family":"Hirwa","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christian","family":"Keambou Tiambo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nasser Kouadio","family":"Yao","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2021,8,16]]},"reference":[{"key":"ref2","doi-asserted-by":"publisher","first-page":"46","DOI":"10.1186\/s13072-018-0217-x","article-title":"JARID2 and the PRC2 complex regulate skeletal muscle differentiation through regulation of canonical Wnt signalling","volume":"11","author":"Adhikari","year":"2018","journal-title":"Epigenetics Chromatin"},{"key":"ref3","doi-asserted-by":"publisher","first-page":"400","DOI":"10.1111\/j.1365-2052.2009.02017.x","article-title":"Mapping QTL for growth and shank traits in chickens divergently selected for high or low body weight","volume":"41","author":"Ankra-Badu","year":"2010","journal-title":"Anim. 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