Phylogenetic and biogeographical inferences for Pancratium (Amaryllidaceae), with an emphasis on the Mediterranean species based on plastid sequence data

Abstract

The phylogenetics and biogeography of Pancratium (Amaryllidaceae) were investigated, with a focus on the Mediterranean and adjacent areas, with the aim of contributing new information towards a better understanding of the evolutionary history of the genus and the taxonomic placement of P. linosae and P. hirtum. To address these questions, we sequenced four plastid DNA markers: the ndhF and rbcL genes, the trnL(UAA)–trnF(GAA) intergenic spacer and the trnL(UAA) intron, analysing them using parsimony, likelihood and Bayesian approaches. The results show that the relationships among the majority of the species are resolved; however, the relationships of one of the major clades of the genus are unresolved compared with the others. The phylogenetic and the dispersal–vicariance analyses show that Pancratium appears as a well‐structured group with interesting patterns of speciation. Notably, P. arabicum and P. linosae fall within the P. maritimum complex. In addition, P. hirtum is identical, in terms of plastid DNA sequences, to the P. trianthum accessions. The results provide new insights and help to formulate new working hypotheses for evolutionary biology of the genus. © 2012 The Linnean Society of London, Botanical Journal of the Linnean Society, 2012, 170, 12–28.

Lectotypification of Linnaean names in the Italian endemic flora

“…We select here the well-preserved material in the Van Royen Herbarium at L as the lectotype of P. illyricum. The lectotype and the rest of the traced original material, with the exception of the specimen in LINN, correspond with the current concept of Pancratium illyricum (e.g., Pignatti, 1982;Jeanmonod & Gamisans, 2007;De Castro & al., 2012). According to the latter authors, this species is endemic to Sardinia and the Tuscan Archipelago (Italy) and Corsica (France).…”

Modeling hydrochory effects on the Tunisian island populations of Pancratium maritimum L. using colored Petri nets

“…maritimum is distributed in the Mediterranean, the Atlantic, the Black and Caspian seas (De Castro et al, 2012). The status of P. maritimum in Lebanon is vulnerable.…”

Biogeography - different geographical and taxonomic scales

“…Hedenäs, ) and regional (e.g. Iganci et al ., ) levels and at taxonomic levels including orders (Christenhusz et al ., ), families (Bouchenak‐Khelladi et al ., ; Lehtonen et al ., ; Ho et al ., ), genera (Espíndola et al ., ; Hennequin et al ., ; Davis et al ., ; De Castro et al ., ) and infrageneric taxa (García‐Verdugo et al ., ; Pavarese et al ., ; Russell et al ., ; Hedrén, Nordström & Ståhlberg, ; Španiel et al ., ). This issue includes papers covering a broad geographical range and examining questions at levels ranging from the endemic flora of Madagascar to patterns within species.…”