Phylogenomic Discordance in Plant Systematics

Phylogenomic Discordance in Plant Systematics
Author :
Publisher : Frontiers Media SA
Total Pages : 233
Release :
ISBN-10 : 9782832538999
ISBN-13 : 2832538991
Rating : 4/5 (991 Downloads)

Book Synopsis Phylogenomic Discordance in Plant Systematics by : Stefan Wanke

Download or read book Phylogenomic Discordance in Plant Systematics written by Stefan Wanke and published by Frontiers Media SA. This book was released on 2023-11-15 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phylogenetics often uncovers contradicting hypotheses regarding the relationships within the same group of organisms, a phenomenon known since the beginning of the molecular systematics era. While, historically, single marker-based analyses produced discordance, nowadays entire cellular genomes or portions of the same genomic compartment conflict with others or the rest, respectively. In contrast to the beginning of the molecular systematics era, when adding markers and taxa offered a way out of systematic errors, genome inference-based incongruences cannot be addressed and explained easily. Disagreeing phylogenomic hypotheses might originate from various evolutionary processes, including but not limited to hybridization or incomplete lineage sorting, thereby leading to gene tree-versus species tree-associated discrepancies. Today, this can be expanded to genome discordance, where phylogenomic signals of organellar genomes (plastid, mitochondrial) and the nuclear genome disagree due to intrinsically different coalescent paths or phenomena like organelle capture.


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