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ROALSON , Eric H.

Last name: ROALSON

First name: Eric H.

July 8, 2019 (v1)

Publication

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Megaphylogenetic Specimen-Level Approaches to the Carex (Cyperaceae) Phylogeny Using ITS, ETS, and matK Sequences: Implications for Classification

Roalson, Eric H. Villlaverde, Tamara Jiménez Mejías, Pedro

We present the first large-scale phylogenetic hypothesis for the genus Carex based on 996 of the 1983 accepted species (50.23%). We used a supermatrix approach using three DNA regions: ETS, ITS and matK. Every concatenated sequence was derived from a single specimen. The topology of our phylogenetic reconstruction largely agreed with previous...

Uploaded on: December 4, 2022
January 26, 2024 (v1)

Publication

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Macroevolutionary insights into sedges (Carex: Cyperaceae): The effects of rapid chromosome number evolution on lineage diversification

Márquez Corro, José Ignacio Martín Bravo, Santiago Jiménez Mejías, Pedro

Changes in holocentric chromosome number due to fission and fusion have direct and immediate effects on genome structure and recombination rates. These, in turn, may influence ecology and evolutionary trajectories profoundly. Sedges of the genus Carex (Cyperaceae) comprise ca. 2000 species with holocentric chromosomes. The genus exhibits a...

Uploaded on: January 28, 2024