Intergeneric and infrafamilial phylogeny of subfamily Monsteroideae (Araceae) revealed by chloroplast <011>trnL‐F sequences

Abstract

The chloroplast trnL-F region was used as an independent data set for phylogenetic analysis of 118 aroid taxa. We investigated the intergeneric relationships of subfamily Monsteroideae (Araceae) and used this as a basis for an interspecific phylogenetic study of Rhaphidophora Hassk., the largest genus of the Monsteroideae. Results of the molecular tree were useful for inferring subfamilial and tribal circumscription and evolution in Araceae. Our results show that family Araceae consists of five clades that correspond to the subfamilies traditionally recognized. Starting from the most basal clade, these correspond to subfamilies Gymnostachydoideae and Orontioideae (proto aroids), with Lemna sp. (Lemnaceae) embedded in the Araceae and sister to the true aroids consisting of Pothoideae sister to Monsteroideae, immediately sister to Lasioideae and Aroideae. There is less agreement with existing tribal classifications. Complex relationships exist between members of the Monsteroideae. Our results show that Rhaphidophora and Epipremnum are paraphyletic with species of Rhaphidophora sampled, forming three informal groups with other genera of the Monstereae. Phylogenetic results may be used to suggest taxonomic changes to the current systematics of the monsteroids.

What is critical for plant thermogenesis? Differences in mitochondrial activity and protein expression between thermogenic and non-thermogenic skunk cabbages

“…Lysichiton contains only two species: white skunk cabbage (L. camtschatcensis) and yellow skunk cabbage (L. americanus), and the difference between these two plants is primarily in the white or yellow color of their spathe. Although a close relationship between Symplocarpus and Lysichiton has been suggested by morphological analyses (Mayo et al 1997) and by phylogenetic analysis of chloroplast DNA (Nie et al 2006;Tam et al 2004), only Symplocarpus displays thermogenic and thermoregulatory features.…”

Reasons and consequences of the lack of a sporopollenin ektexine in Aroideae (Araceae)

“…Our reference for a morphologically based subfamily classification is Mayo et al (1997) except for Zamioculcadoideae (including only Zamioculcas and Gonatopus, which has been seen as paraphyletic already by Mayo et al, 1997, and sister to all other Aroideae by Tam et al, 2004). The reference in molecular classification is Tam et al (2004), basing in part on Barabe´et al (2002).…”

“…Araceae, one of the large angiosperm families with over 3300 species in 105 genera (Mayo et al, 1997), represents a monophyletic group with the inclusion of Lemnoideae, formerly Lemnaceae (Tam et al, 2004). Except Aroideae, all subfamilies (i.e.…”

“…The reference in molecular classification is Tam et al (2004), basing in part on Barabe´et al (2002).…”

Exploration and Inventory of Araceae Genera in Silui Mountain and Uluisimbone Forest, Kolaka Regency, South-East Sulawesi

“…The Araceae is one of the dominant tropical families. The Araceae is strongly supported as a monophytelic group with the inclusion of Lemnaceae (Grayum, 1990;Mayo et al, 1997;Tam et al, 2004). It also distributed mostly in sub tropic with a few reaching temperate latitudes (Leimbeck DOI: 10.13057/biodiv/d090410 289 and Balslev, 2001).…”