Population history of the terrestrial orchidCremastra appendiculatavar.variabilisfrom Korea, inferred from levels and distribution of genetic diversity

Abstract

Cremastra appendiculata var. variabilis is a self‐compatible, insect‐pollinated, terrestrial orchid that is a typical member of the warm‐temperate vegetation in the Korean Peninsula. Here we examine levels and partitioning of allozyme diversity (22 loci) in 12 populations of this orchid to gain insight into its genetic structure and post‐glacial colonization history in Korea. It harboured considerably higher levels of genetic variation within populations (%P = 48.1, A = 1.70 and He = 0.217) and lower degree of differentiation among populations (FST = 0.068) than those typical of allozyme‐based studies in other terrestrial orchid species. These patterns suggest that extant populations were derived from multiple source populations (i.e. from multiple glacial refugia), although further studies are needed to confirm this scenario. In addition to population history, traits such as high potential of seed dispersal, a mixed mating system and its occurrence in large and continuous populations would have contributed to the current levels and distribution of genetic diversity in Korean populations of C. appendiculata var. variabilis. © 2013 The Linnean Society of London, Botanical Journal of the Linnean Society, 2013, 173, 721–732.

Chemical Components and Hypoglycemic Activity of Large Scale Micropropagated Cremastra Appendiculata (D.Don) Makino

“…Members of the Cremastra genus are widely used in folk medicine. Cremastra appendiculata (D.Don) Makino (Orchidaceae) is a rare wild ornamental medicinal species (national pharmacopoeia committee 2015) distributed in the subtropical areas of China, as well as in Japan, India, Korea, Thailand etc (Zhang et al 2006;Chung et al 2013). Besides, C. appendiculata has different kinds of biological activities (Amin et al 2017), which has been widely used in the clinical treatment of liver cancer, lung cancer, breast cancer and other cancers, thus its medicinal value keeps improving (Sun et al 2015).…”

Another good year for monocot research

“…() cited above, several other papers on orchids were published in the journal recently (e.g. Davies & Stpiczyńska, ; Pavarese et al ., ; Chung et al ., ; Suetsugu, ; Davies, Stpiczyńska & Kamińska, ). In this issue, two papers relate to orchids.…”

A botanical Christmas stocking

“…() demonstrate high levels of gene flow (mediated by thrips) between two species of Macaranga Thouars (Euphorbiaceae) from South‐East Asia; Chung et al . () infer population history of a rare orchid from Korea on the basis of current genetic structure; and Zhang et al . () discuss the conservation of Eucommia ulmoides Oliv.…”