The East Asian origin of the giant lobelias

Abstract

With adequate molecular and taxon sampling, many details of rapid radiations can be accurately inferred. However, not all lineages survived, and analyses of extant species cannot recover details that have been lost due to extinction.

Lobelia claviflora (Campanulaceae:Lobelioideae), a new species from northern New South Wales, Australia

“…Hypsela is not supported by molecular evidence despite some morphological similarities. Isotoma hypocrateriformis is however sister to all other species in this predominantly Australasian clade (Knox and Li 2017).…”

“…Although Isotoma is currently recognised as distinct from Lobelia L. in Australia (Australian Plant Census; [https:// biodiversity.org.au/nsl/services/APC] accessed June 6 2018), recent molecular data (Knox et al 2006, Antonelli 2008, Knox and Li 2017 place Isotoma species and many southern hemisphere Lobelia spp. in a predominantly Australasian clade that originated in Australia.…”

Comparative analysis of plastid genomes within the Campanulaceae and phylogenetic implications

“…The visualization of codon usage in the form of heatmaps of Campanulaceae species and a histogram were conducted with R language with an RSCU value. 135 (25) 135 (24) 146 (32) 138 (24) 133 24140 21134 (18) 147 22139 (25) 150 (33) Number of protein-coding genes 89 (13) 91 1490 1395 (20) 95 (19) 86 1282 783 783 789 1399 (21) Number of tRNA genes 37 736 737 736 738 737 737 536 544 736 736 7Number of rRNA genes…”

“…In recent years, based on genomic resources, such as complete plastid sequences, there is a good chance to study the genomic evolution and interspecific relationships of organisms [15][16][17][18]. Chloroplasts are small organelles inside the cells of plants with the function of providing photosynthetic machinery and producing essential energy.…”

Multiple colonizations of the Pacific by Peperomia (Piperaceae): Complex patterns of long‐distance dispersal and parallel radiations on the Hawaiian Islands

“…This hypothesis appears to be largely supported by the observations that species-rich lineages are often monophyletic (Silvertown, 2004;Silvertown et al, 2005), and that back-colonizations from younger to older islands with more established species assemblages are fairly rare (the so-called "progression rule"; Wagner & Funk 1995;Gillespie & Baldwin 2010). Among the Hawaiian flora, many of the most species-rich plant groups, such as the iconic silverswords (Baldwin et al, 1991), Melicope (Appelhans et al, 2018), lobeliads (Givnish et al, 2009;Knox & Li, 2017), and mints (Lindqvist & Albert, 2002), have been found to represent evolutionary radiations derived from single colonization events. On the…”