Journal
ELIFE
Volume 11, Issue -, Pages -Publisher
eLIFE SCIENCES PUBL LTD
DOI: 10.7554/eLife.78526
Keywords
synteny; comparative genomics; sex chromosomes; orthology; grasses; cotton; Chicken; Human; Maize; Other; Rice
Categories
Funding
- Office of Science of the US Department of Energy [DE-AC02-05CH1123]
- National Institute of General Medical Sciences (NIGMS) of the National Institutes of Health (NIH) [R35GM124827]
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The development of multiple chromosome-scale reference genome sequences has provided a high-resolution view of molecular evolution patterns and processes. However, leveraging information across multiple genomes remains a challenge in eukaryotic systems. GENESPACE addresses these challenges by integrating conserved gene order and orthology. It offers a significant contribution to existing gene family and synteny programs, particularly in complex genomes.
The development of multiple chromosome-scale reference genome sequences in many taxonomic groups has yielded a high-resolution view of the patterns and processes of molecular evolution. Nonetheless, leveraging information across multiple genomes remains a significant challenge in nearly all eukaryotic systems. These challenges range from studying the evolution of chromosome structure, to finding candidate genes for quantitative trait loci, to testing hypotheses about speciation and adaptation. Here, we present GENESPACE, which addresses these challenges by integrating conserved gene order and orthology to define the expected physical position of all genes across multiple genomes. We demonstrate this utility by dissecting presence-absence, copy-number, and structural variation at three levels of biological organization: spanning 300 million years of vertebrate sex chromosome evolution, across the diversity of the Poaceae (grass) plant family, and among 26 maize cultivars. The methods to build and visualize syntenic orthology in the GENESPACE R package offer a significant addition to existing gene family and synteny programs, especially in polyploid, outbred, and other complex genomes.
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