title: Phylogenies without roots? A plea for the use of vouchers in molecular phylogenetic studies.
authors.affiliation: Department of Marine Ecology, Tjärnö Marine Biological Laboratory, Göteborg University, SE-452 96 Strömstad, Sweden. fredrik.pleijel@marecol.gu.se
authors.forename: F
authors.initials: F
authors.lastname: Pleijel
authors.forename: U
authors.initials: U
authors.lastname: Jondelius
authors.forename: E
authors.initials: E
authors.lastname: Norlinder
authors.forename: A
authors.initials: A
authors.lastname: Nygren
authors.forename: B
authors.initials: B
authors.lastname: Oxelman
authors.forename: C
authors.initials: C
authors.lastname: Schander
authors.forename: P
authors.initials: P
authors.lastname: Sundberg
authors.forename: M
authors.initials: M
authors.lastname: Thollesson
mesh_terms: D000818:Animals; D002965:Classification / Q000379:methods*; D030561:Databases, Nucleic Acid / Q000592:standards*; D008969:Molecular Sequence Data; D010802:Phylogeny; D010944:Plants / Q000145:classification / Q000235:genetics