Possible adaptive and non‐adaptive radiation in three plant genera in the Japanese archipelago

Abstract

The adaptive radiation of flowering plants as manifested by the floral diversity has long been considered associated with the diversity of plant–pollinator interactions, because changes in plant–pollinator interactions are hypothesized as one of the major mechanisms driving plant ecological speciation. To understand the relative contributions of various mechanisms for plant radiation, including pollinator changes, it is useful to study a plant group for which comparative study of the species life history across the whole lineage is feasible. To this end, we will focus on the plant lineages that have presumably radiated in the Japanese archipelago, namely, the genera Asimitellaria, Asarum, and Arisaema. By comparing these three genera, we will comment on the possible modes of adaptive radiation and diversification among the endemic flora of Japan.

Adaptive and non‐adaptive causes of radiation: Is adaptation a harsh mistress of diversity?

“…Possible adaptive and non-adaptive radiation in three plant genera in the Japanese archipelago (Okuyama and Kakishima, 2022).…”

Population Ecology 2023 Editorial

“…In 2022, we published a special feature "Adaptive and non-adaptive causes of radiation: Is adaptation a harsh mistress of diversity?" (organized by Kei W. Matsubayashi), which included five papers (Comerford & Egan, 2022;Kagawa, 2022;Matsubayashi & Yamaguchi, 2022b;Okuyama & Kakishima, 2022;Yamaguchi & Matsubayashi, 2022) supported by our Special Feature Editor, Dr Shunsuke Utsumi and the former Special Feature Editor, Dr Takehiro Yamanaka. The special feature studied relationships between adaptive radiation and ecological diversification.…”

“…The top image illustrates a maximum-likelihood phylogenetic tree of the genus Arisaema sect. Pistillata (Araceae) based on 2832 bp of four plastid DNA regions (Okuyama & Kakishima, 2022). Pollination system characteristics and floral morphologies are shown on the right only when information on pollination systems is available (OTUs highlighted in white circles in the phylogenetic tree).…”