A new classification of Cyperaceae (Poales) supported by phylogenomic data

Abstract

Cyperaceae (sedges) are the third largest monocot family and are of considerable economic and ecological importance. Sedges represent an ideal model family to study evolutionary biology due to their species richness, global distribution, large discrepancies in lineage diversity, broad range of ecological preferences, and adaptations including multiple origins of C 4 photosynthesis and holocentric chromosomes. Goetghebeur′s seminal work on Cyperaceae published in 1998 provided the most recent complete classification at tribal and generic level, based on a morphological study of Cyperaceae inflorescence, spikelet, flower, and embryo characters, plus anatomical and other information. Since then, several family-level molecular phylogenetic studies using Sanger sequence data have been published. Here, moreThis is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

A Bird’s Eye View of the Systematics of Convolvulaceae: Novel Insights From Nuclear Genomic Data

“…In plants, the development of the Angiosperms353 ( Johnson et al, 2019 ), a universal target capture probe set, has allowed standardization of genomic data generated for phylogenetic inference in angiosperms ( Baker et al, 2021 ), enabling easier combination of different datasets and materials, including old herbarium specimens that are proven to be great source of genetic data ( Brewer et al, 2019 ). This probe set has demonstrated its potential to advance phylogenetic studies and significantly resolve relationships with outstanding uncertainty across different taxonomic levels, from ordinal (e.g., Commelinales: Zuntini et al, 2021 ; Cornales: Thomas et al, 2021 ; Dipsacales: Lee et al, 2021 ) to familial (Orchidaceae: Eserman et al, 2021 ; Pérez-Escobar et al, 2021 ; Cyperaceae: Larridon et al, 2021 ) and even infra-generic levels ( Shee et al, 2020 ; Slimp et al, 2021 ). Based on this universal probe set, large collaborative efforts such as Plant and Fungal Tree of Life Project (PAFTOL, Baker et al, 2022 1 ) and Genomics for Australian Plants (GAP 2 ) have generated an incomparable amount of genomic data for nearly all families and more than seven thousand genera of flowering plants, on which relationships among all plant families of angiosperms are being analyzed, at taxonomic and phylogenetic scales never attempted before.…”

Understanding Diversity and Systematics in Australian Fabaceae Tribe Mirbelieae

“…and G. Forst. [165], Cyperaceae [160,161,166] and Gesneriaceae [167], providing unprecedented support at both the backbone and species levels. Additionally, the myBaits Angiosperms 353 kit, currently being used as part of the Plant and Fungal Trees of Life (PAFTOL) [163,164,168], is a method that will form part of the Phylogenomics Working Group (PWG) of the Genomics for Australian Plants Framework Data Initiative (GAP; https://www.genomicsforaustralianplants.com (accessed on 25 April 2021)), setting a new standard for angiosperm genomics.…”

“…However, markers developed by using RADseq are taxon-specific and not cross-applicable between genera or families [158]. In recent years, huge advances have been made in targeted sequence capture that allow for the enrichment of hundreds of informative markers throughout the genome that are cross-applicable throughout angiosperms and gymnosperms [159][160][161][162][163].…”

Carex borealifujianica (Cyperaceae), a new species of the core Carex clade from Fujian, southeastern China

“…Carex L., a cosmopolitan genus containing ca. 2000 known species divided into 130+ sections, is one of the largest genera of flowering plants [ 1 – 4 ]. The genus is distributed across every continent with the exception of Antarctica and grows in various habitats ranging from tropical forests to Arctic tundra [ 5 ].…”