Molecular rates parallel diversification contrasts between carnivorous plant sister lineages

Jobson, Richard W. and Albert, Victor A. (2002) Molecular rates parallel diversification contrasts between carnivorous plant sister lineages. Cladistics, 18 2: 127-136. doi:10.1006/clad.2001.0187


Author Jobson, Richard W.
Albert, Victor A.
Title Molecular rates parallel diversification contrasts between carnivorous plant sister lineages
Journal name Cladistics   Check publisher's open access policy
ISSN 0748-3007
1096-0031
Publication date 2002-04
Sub-type Article (original research)
DOI 10.1006/clad.2001.0187
Volume 18
Issue 2
Start page 127
End page 136
Total pages 10
Place of publication Orlando, Florida, U.S.A.
Publisher Blackwell Publishing
Collection year 2002
Language eng
Subject C1
270401 Plant Systematics, Taxonomy and Phylogeny
780105 Biological sciences
Abstract In the carnivorous plant family Lentibulariaceae, the bladderwort lineage (Utricularia and Genlisea) is substantially more species-rich and morphologically divergent than its sister lineage, the butterworts (Pinguicula). Bladderworts have a relaxed body plan that has permitted the evolution of terrestrial, epiphytic, and aquatic forms that capture prey in intricately designed suction bladders or corkscrew-shaped lobster-pot traps. In contrast, the flypaper-trapping butterworts maintain vegetative structures typical of angiosperms. We found that bladderwort genomes evolve significantly faster across seven loci (the trnL intron, the second trnL exon, the trnL-F intergenic spacer, the rps16 intron, rbcL, coxI, and 5.8S rDNA) representing all three genomic compartments. Generation time differences did not show a significant association. We relate these findings to the contested speciation rate hypothesis, which postulates a relationship between increased nucleotide substitution and increased cladogenesis. (C) 2002 The Willi Hennig Society.
Keyword Evolutionary Biology
Relative-rate Test
Genlisea Lentibulariaceae
Evolutionary Rates
Sequence Evolution
Flowering Plants
Speciation
Selection
Rbcl
Utricularia
Phylogeny
Q-Index Code C1
Additional Notes International Journal of The Willi Hennig Society

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Biological Sciences Publications
 
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Created: Tue, 14 Aug 2007, 17:25:54 EST