Characterisation of the turkey (Meleagris gallopavo) genomic landscape

Chrissy Rochus, B.J. Wood, C.F. Baes

Research output: Contribution to conferencePoster

Abstract / Description of output

Poster abstract:

Recombination is a feature of sexual reproduction that creates new combinations of alleles during meiosis. Recombination rate varies by species, population, sex, individual, and chromosome. Our objectives were to characterise recombination and other genomic features in three commercial turkey selection lines. Individuals (1889 from line 1, 2540 from line 2, and 2410 from line 3) were genotyped with a 60K SNP array. We detected crossovers with LINKPHASE3, estimated recombination rate in sliding 1 Mb windows, and identified recombination hotspots. Runs of homozygosity (ROH) were detected using PLINK v1.9 and CG and CpG content was identified using the Turkey5.1 assembly. Average male recombination was 3.9x10-8 (SE=1.0x10-9), 3.3x10-8 (3.5x10-10), and 3.5x10-8 (7.2x10-10) in lines 1, 2 and 3. Mean ROH length was 3.18 kb (SE=0.03), 3.29 (0.02), and 3.09 kb (0.02) in lines 1, 2 and 3, and likely affected our ability to identify all crossover events. We will look for associations between recombination, ROH, and CG and CpG content in sliding 1 Mb windows. Our efforts to update the turkey recombination map and characterise genomic features, could contribute to the development of methods to improve long-term selection and maintenance of genetic diversity.
Original languageEnglish
Publication statusE-pub ahead of print - 14 Nov 2023
EventEdinburgh Next Generation of Genomic Symposium 2023 - Playfair Library, University of Edinburgh, Edinburgh, United Kingdom
Duration: 14 Oct 202314 Oct 2023


ConferenceEdinburgh Next Generation of Genomic Symposium 2023
Country/TerritoryUnited Kingdom


Dive into the research topics of 'Characterisation of the turkey (Meleagris gallopavo) genomic landscape'. Together they form a unique fingerprint.

Cite this