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Botany Commons

Open Access. Powered by Scholars. Published by Universities.®

Claremont Colleges

2007

Carex

Articles 1 - 2 of 2

Full-Text Articles in Botany

Phylogenetic Relationships In Tribe Cariceae (Cyperaceae) Based On Nested Analyses Of Four Molecular Data Sets, Marcia J. Waterway, Julian R. Starr Dec 2007

Phylogenetic Relationships In Tribe Cariceae (Cyperaceae) Based On Nested Analyses Of Four Molecular Data Sets, Marcia J. Waterway, Julian R. Starr

Aliso: A Journal of Systematic and Floristic Botany

Phylogenetic reconstruction for Carex and relatives in tribe Cariceae is complicated by species richness and nearly cosmopolitan distribution. In this investigation, our main objective was to estimate evolutionary relationships in tribe Cariceae using DNA sequence data from two spacer regions in nuclear ribosomal genes (ITS and ETS-1f) combined with noncoding chloroplast DNA (trnL intron, trnL–trnF intergenic spacer, and trnE–trnD intergenic spacers). Parsimony analyses of separate and combined data and Bayesian analysis of the combined data matrix revealed strong support for monophyly of tribe Cariceae and for monophyly of two major lineages, one …


Chromosome Number Changes Associated With Speciation In Sedges: A Phylogenetic Study In Carex Section Ovales (Cyperaceae) Using Aflp Data, Andrew L. Hipp, Paul E. Rothrock, Anton A. Reznicek, Paul E. Berry Dec 2007

Chromosome Number Changes Associated With Speciation In Sedges: A Phylogenetic Study In Carex Section Ovales (Cyperaceae) Using Aflp Data, Andrew L. Hipp, Paul E. Rothrock, Anton A. Reznicek, Paul E. Berry

Aliso: A Journal of Systematic and Floristic Botany

Phylogenetic analysis of amplified fragment length polymorphisms (AFLP) was used to infer patterns of morphologic and chromosomal evolution in an eastern North American group of sedges (ENA clade I of Carex sect. Ovales). Distance analyses of AFLP data recover a tree that is topologically congruent with previous phylogenetic estimates based on nuclear ribosomal DNA (nrDNA) sequences and provide support for four species groups within ENA clade I. A maximum likelihood method designed for analysis of restriction site data is used to evaluate the strength of support for alternative topologies. While there is little support for the precise placement of …