English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

Natural hybridization has been considered to represent an important factor influencing the high diversity of the genus  Ligularia  Cass. in the Hengduan Mountains, China. Natural hybridization has been confirmed to occur frequently in  Ligularia . To date, however, it has been demonstrated only within a single population. In this paper, we present evidence of natural hybridization in  Ligularia  from four different locations. The internal transcribed spacer (ITS) region of the nuclear ribosomal DNA and three chloroplast intergenic spacers ( trn K- rps 16,  trn L- rpl 32 and  trn Q-5' rps 16) of 149 accessions of putative hybrids and their putative parents ( L. cymbulifera  and  L. tongolensis ) were analyzed for evidence of hybridization. The ITS data clearly distinguished two putative parental species and sympatric  L. vellerea  and supported the hypothesis that those morphological intermediates were products of natural hybridization between  L. cymbulifera  and  L. tongolensis . Moreover, several identified morphological parents were actual introgressed products. Because of hybridization and introgression, chloroplast DNA sequences generated a poorly resolved network. The present results indicate that varying degrees of hybridization and introgression occur differently depending on the habitat context. We conclude that gene flow caused by natural hybridization in  Ligularia  indeed plays an important role in the species diversity.

Natural Hybridization and Introgression between Ligularia cymbulifera and L. tongolensis (Asteraceae, Senecioneae) in Four Different Locations