Validation of Automated Chromosome Recovery in the Reconstruction of Ancestral Gene Order

Autor: Qiaoji Xu, Lingling Jin, James H. Leebens-Mack, David Sankoff
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Algorithms, Vol 14, Iss 6, p 160 (2021)
Druh dokumentu: article
ISSN: 1999-4893
DOI: 10.3390/a14060160
Popis: The RACCROCHE pipeline reconstructs ancestral gene orders and chromosomal contents of the ancestral genomes at all internal vertices of a phylogenetic tree. The strategy is to accumulate a very large number of generalized adjacencies, phylogenetically justified for each ancestor, to produce long ancestral contigs through maximum weight matching. It constructs chromosomes by counting the frequencies of ancestral contig co-occurrences on the extant genomes, clustering these for each ancestor and ordering them. The main objective of this paper is to closely simulate the evolutionary process giving rise to the gene content and order of a set of extant genomes (six distantly related monocots), and to assess to what extent an updated version of RACCROCHE can recover the artificial ancestral genome at the root of the phylogenetic tree relating to the simulated genomes.
Databáze: Directory of Open Access Journals