New or Noteworthy Species of Cardamine (Brassicaceae) from China

Eutrema giganteum (Brassicaceae), a new species from Sichuan, southwest China

Eutrema giganteum (Brassicaceae), a new species from Hengduan Mountains in Sichuan Province, southwest China, is described, and its relationships to the closely related E. yunnanense is discussed based on morphological, cytological, and molecular data. It is similar morphologically to E. yunnanense but is readily distinguished by having robust (vs. slender), erect (vs. decumbent), and branched ...

Cytotype diversity and genome size variation in eastern Asian polyploid Cardamine (Brassicaceae) species.

BACKGROUND AND AIMS Intraspecific ploidy-level variation is an important aspect of a species' genetic make-up, which may lend insight into its evolutionary history and future potential. The present study explores this phenomenon in a group of eastern Asian Cardamine species. METHODS Plant material was sampled from 59 localities in Japan and Korea, which were used in karyological (chromosome c...

Interspecific Divergence of Two Sinalliaria (Brassicaceae) Species in Eastern China

How endemic species originated in eastern Asia has interested botanists for a long time. In this study, we combined experimental and computational modeling approaches to examine the morphological and genetic divergence and reproductive isolation of two tentative species of Sinalliaria (Brassicaceae) endemic to eastern China, S. limprichtiana and S. grandifolia. Most of the examined morphologica...

Noteworthy New Titles

Hybridization between two polyploid Cardamine (Brassicaceae) species in North-western Spain: discordance between morphological and genetic variation patterns.

BACKGROUND AND AIMS Hybridization is an important evolutionary phenomenon, and therefore a detailed understanding of the dynamics of interspecific gene flow and resulting morphological and genetic patterns is of widespread interest. Here hybridization between the polyploids Cardamine pratensis and C. raphanifolia at four localities is explored. Using different types of data, the aim is to provi...