TY - JOUR T1 - Parsimony Analysis of cpDNA Restriction Site Variation in Subfamily Nepetoideae (Labiatae) JF - Am J Bot Y1 - 1995 A1 - SJ WAGSTAFF A1 - RG OLMSTEAD A1 - PD CANTINO SP - 886–892 KW - Classification KW - Dna KW - Evolution KW - Lamiaceae KW - Phylogeny AB - Parsimony analysis of cpDNA restriction site variation supports monophyly of subfamily Nepetoideae, However, a close relationship among Nepetoideae and other gynobasic-styled Labiatae is not supported, indicating that a gynobasic style has evolved independently in at least two clades of Labiatae. The inferred relationships are congruent with the classification of Cantino, Harley, and Wagstaff (1992, Advances in labiate sciences, 27-37, Royal Botanic Gardens, Kew) but conflict to varying degrees with traditional classifications. Monophyly of four tribes of Nepetoideae also is supported. VL - 82 ER - TY - JOUR T1 - Molecular phylogeny, biogeography, and systematics of Dicerandra (Lamiaceae), a genus endemic to the southeastern United States JF - Am J Bot Y1 - 2007 DO - 10.3732/ajb.94.6.1017 A1 - Luiz O Oliveira A1 - Robin B Huck A1 - Matthew A Gitzendanner A1 - Walter S Judd A1 - Douglas E Soltis A1 - Pamela S Soltis SP - 1017–27 AB - Dicerandra, an endemic mint of the southeastern United States, comprises nine species, all of which are threatened or endangered and restricted to sandhill vegetation and a mosaic of scrub habitats. Molecular phylogenetic analyses of Dicerandra based on data from the nuclear and plastid genomes for all 13 taxa of the genus, identified two strongly supported clades, corresponding to the four annual and to the five perennial species of Dicerandra. However, the nuclear and plastid trees were incongruent in their placement of two perennial taxa, D. cornutissima and D. immaculata var. savannarum, perhaps due to ancient hybridization or to lineage sorting. Based on these analyses, the widespread D. linearifolia is not monophyletic, with populations of D. linearifolia var. linearifolia falling into either western or eastern clades. The western clade, comprising populations of D. linearifolia var. linearifolia and var. robustior, occurs in an area drained by rivers flowing toward the Gulf of Mexico, whereas the eastern clade, comprising populations of D. linearifolia var. linearifolia, D. densiflora, D. odoratissima, and D. radfordiana (i.e., all the annual species), occupies a region drained by rivers flowing to the Atlantic Ocean. Although this pattern of genetic differentiation between populations from these two river drainages has been documented in several animal species, it has not previously been reported for plants. A revised subgeneric classification is presented to reflect the annual and perennial clades. VL - 94 ER - TY - JOUR T1 - Molecular phylogeny, biogeography, and systematics of Dicerandra (Lamiaceae), a genus endemic to the southeastern United States' JF - Am J Bot Y1 - 2007 A1 - Luiz O Oliveira A1 - Robin B Huck A1 - Matthew A Gitzendanner A1 - Walter S Judd A1 - Douglas E Soltis A1 - Pamela S Soltis SP - 1017–1027 KW - Biogeography KW - Chloroplast Dna KW - Conservation KW - Dicerandra KW - Endemic Species KW - Florida KW - Inferences KW - Internal Transcribed Spacer KW - Labiatae KW - Lake Wales Ridge KW - Matk KW - Plant KW - Sequences KW - Trnt-Trnl AB - Dicerandra, an endemic mint of the southeastern United States, comprises nine species, all of which are threatened or endangered and restricted to sandhill vegetation and a mosaic of scrub habitats. Molecular phylogenetic analyses of Dicerandra based on data from the nuclear and plastid genomes for all 13 taxa of the genus, identified two strongly supported clades, corresponding to the four annual and to the five perennial species of Dicerandra. However, the nuclear and plastid trees were incongruent in their placement of two perennial taxa, D. cornutissima and D. immaculata var. savannarum, perhaps due to ancient hybridization or to lineage sorting. Based on these analyses, the widespread D. linearifolia is not monophyletic, with populations of D. linearifolia var. linearifolia falling into either western or eastern clades. The western clade, comprising populations of D. linearifolia var. linearifolia and var. robustior, occurs in an area drained by rivers flowing toward the Gulf of Mexico, whereas the eastern clade, comprising populations of D. linearifolia var. linearifolia, D. densiflora, D. odoratissima, and D. radfordiana (i.e., all the annual species), occupies a region drained by rivers flowing to the Atlantic Ocean. Although this pattern of genetic differentiation between populations from these two river drainages has been documented in several animal species, it has not previously been reported for plants. A revised subgeneric classification is presented to reflect the annual and perennial clades. VL - 94 UR - http://apps.isiknowledge.com/InboundService.do?product=WOS&action=retrieve&SrcApp=Papers&UT=000249830600013&SID=2ABa3P2LDb%2540FhI56hhg&SrcAuth=mekentosj&mode=FullRecord&customersID=mekentosj&DestFail=http%253A%252F%252Faccess.isiproducts.com%252Fcustom_i ER - TY - JOUR T1 - Hybridization in the section Mentha (Lamiaceae) inferred from AFLP markers JF - Am J Bot Y1 - 2002 A1 - V Gobert A1 - S Moja A1 - M Colson A1 - P Taberlet SP - 2017–2023 KW - Aflp KW - Dna Fingerprinting KW - Genetic Diversity KW - Hybridization KW - Lamiaceae KW - Lines KW - Mentha KW - Polyploid KW - Rapd KW - Rflp AB - The amplified fragment length polymorphism (AFLP) method was used to evaluate genetic diversity and to assess genetic relationships within the section Mentha in order to clarify the taxonomy of several interspecific mint hybrids with molecular markers. To this end, genetic diversity of 62 Mentha accessions from different geographic origins, representing five species and three hybrids, was assessed. Three EcoRI/MseI AFLP primer combinations generated an average of 40 AFLP markers per primer combination, ranging in size from 50 to 500 base pairs (bp). The percentage of markers polymorphic ranged from 50% to 60% across all accessions studied. According to phenetic and cladistic analysis, the 62 mint accessions were grouped into two major clusters. Principal coordinates analysis separated species into well-defined groups, and clear relationships between species and hybrids could be described. Our AFLP analysis supports taxonomic classification established among Mentha species by conventional (morphological, cytological, and chemical) methods. It allows the assessment of phenetic relationships between species and the hybrids M. spicata and M. X piperita, largely cultivated all over the world for their menthol source, and provides new insights into the subdivision of M. spicata, based for the first time on molecular markers. VL - 89 ER - TY - JOUR T1 - Disintegration of the Scrophulariaceae JF - Am J Bot Y1 - 2001 A1 - RG OLMSTEAD A1 - CW dePamphilis A1 - AD Wolfe A1 - ND Young A1 - WJ Elisons A1 - PA Reeves SP - 348 AB - A molecular systematic study of Scrophulariaceae sensu lato using DNA sequences of three plastid genes (rbcL, ndhF, and rps2) revealed at least five distinct monophyletic groups. Thirty-nine genera representing 24 tribes of the Scrophulariaceae s.l. (sensu lato) were analyzed along with representatives of 15 other families of Lamiales. The Scrophulariaceae s.s. (sensu stricto) include part or all of tribes Aptosimeae, Hemimerideae, Leucophylleae, Manuleae, Selagineae, and Verbasceae (= Scrophularieae) and the conventional families Buddlejaceae and Myoporaceae. Veronicaceae includes all or part of tribes Angelonieae, Antirrhineae, Cheloneae, Digitaleae, and Gratioleae and the conventional families Callitrichaceae, Globulariaceae, Hippuridaceae, and Plantaginaceae. The Orobanchaceae include tribes Buchnereae, Rhinantheae, and the conventional Orobanchaceae. All sampled members of Orobanchaceae are parasitic, except Lindenbergia, which is sister to the rest of the family. Family Calceolariaceae Olmstead is newly erected herein to recognize the phylogenetic distinctiveness of tribe Calceolarieae. The Calceolariaceae are close to the base of the Lamiales. The Stilbaceae are expanded by the inclusion of Halleria. Mimulus does not belong in any of these five groups. VL - 88 ER -