The Living Collection at the Royal Botanic Garden Edinburgh Illustrates the Floral Diversity in Streptocarpus (Gesneriaceae)

Möller, Michael; Atkins, H. J.; Barber, Sadie; Purvis, David

doi:10.24823/sibbaldia.2019.272

Cited by 4 publications

(2 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…with c. 180 species (Möller et al, 2019). It now includes all didymocarpoid genera formerly recognised in Africa, Madagascar and the Comoro Islands: Acanthonema, Colpogyne, Hovanella, Linnaeopsis, Nodonema, Saintpaulia, Schizoboea, Streptocarpus and Trachystigma (see Table 1).…”

Section: Key To the Genera Of Subtribe Leptoboeinaementioning

confidence: 99%

Keys to the infrafamilial taxa and genera of Gesneriaceae

Weber¹,

Middleton²,

Clark³

et al. 2020

Rheedea

View full text Add to dashboard Cite

In recent years significant advances have been made in the taxonomy and classification of the Gesneriaceae, mostly based on molecular-phylogenetic research. This has led to major changes in the classification of the family and the establishment, reestablishment, recircumscription and synonymisation of many genera. Consequently, the treatment of the Gesneriaceae that was published in Kubitzki's Families and Genera of Vascular Plants, with brief descriptions and keys to all genera as well as the formal and informal groups of Gesneriaceae then recognised, has become rather out-of-date in a relatively short period of time. In 2013, a new formal classification of Gesneriaceae was published, with inclusion of Sanango in a third subfamily, reclassification of Gesnerioideae and de-novo-classification of Didymocarpoideae. In the present paper an effort is made to survey all of the taxonomic changes in the Gesneriaceae since the publication of these two treatments. This is done at all levels of the taxonomic hierarchy down to the genus level and new keys for the identification of the current infrafamilial taxa and genera are provided. As the taxonomic concepts of most genera are based on a combination of vegetative, floral and fruit characters, having fertile material is still a prerequisite for unambiguous identification. A glossary is provided to explain botanical terms largely specific to Gesneriaceae taxonomy.

show abstract

Section: Key To the Genera Of Subtribe Leptoboeinaementioning

confidence: 99%

Keys to the infrafamilial taxa and genera of Gesneriaceae

Weber¹,

Middleton²,

Clark³

et al. 2020

Rheedea

View full text Add to dashboard Cite

show abstract

“…Streptocarpus species are particularly notable for their vegetative and floral diversity (e.g., Hilliard & Burtt, 1971 ; Nishii et al, 2015 ). The flowers are zygomorphic and possess a variety of shapes and colors and markings representing different pollination syndromes (Möller et al, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

The first genome for the Cape Primrose Streptocarpus rexii (Gesneriaceae), a model plant for studying meristem‐driven shoot diversity

et al. 2022

Self Cite

View full text Add to dashboard Cite

Cape Primroses ( Streptocarpus , Gesneriaceae) are an ideal study system for investigating the genetics underlying species diversity in angiosperms. Streptocarpus rexii has served as a model species for plant developmental research for over five decades due to its unusual extended meristem activity present in the leaves. In this study, we sequenced and assembled the complete nuclear, chloroplast, and mitochondrial genomes of S. rexii using Oxford Nanopore Technologies long read sequencing. Two flow cells of PromethION sequencing resulted in 32 billion reads and were sufficient to generate a draft assembly including the chloroplast, mitochondrial and nuclear genomes, spanning 776 Mbp. The final nuclear genome assembly contained 5,855 contigs, spanning 766 Mbp of the 929‐Mbp haploid genome with an N50 of 3.7 Mbp and an L50 of 57 contigs. Over 70% of the draft genome was identified as repeats. A genome repeat library of Gesneriaceae was generated and used for genome annotation, with a total of 45,045 genes annotated in the S. rexii genome. Ks plots of the paranomes suggested a recent whole genome duplication event, shared between S. rexii and Primulina huaijiensis . A new chloroplast and mitochondrial genome assembly method, based on contig coverage and identification, was developed, and successfully used to assemble both organellar genomes of S. rexii . This method was developed into a pipeline and proved widely applicable. The nuclear genome of S. rexii and other datasets generated and reported here will be invaluable resources for further research to aid in the identification of genes involved in morphological variation underpinning plant diversification.

show abstract