Description

The Primulaceae, commonly known as the primrose family (but not related to the evening primrose family), are a family of herbaceous and woody flowering plants including some favourite garden plants and wildflowers. Most are perennial though some species, such as scarlet pimpernel, are annuals.

Previously one of three families in the order Primulales, it underwent considerable generic re-alignment once molecular phylogenetic methods were used for taxonomic classification. The order was then submerged in a much enlarged order Ericales and became a greatly enlarged Primulaceae sensu lato (s.l). In this new classification of the Angiosperm Phylogeny Group, each of the Prumulales families was reduced to the rank of subfamily of Primulaceae s.l. The original Primulaceae (Primulaceae sensu stricto or s.s.) then became subfamily Primuloideae, and one genus (Maesa) was raised to the rank of a separate subfamily, making four in all.

SI type

Type-4 and -5 are the sporophytic heterostyly SI of Primulaceae and Turneraceae, controlled by hemizygous S-loci mainly encoding CYP (Cytochrome P450) and TsBAHD, respectively. Athough both of them can inactivate pistil BR, they are absent in the long styles, leading to nonself pollen acceptance and self pollen rejection.

SI genes

Downloads

• fasta
• gff
• cds
• pro

Publication

Li J, Cocker JM, Wright J, Webster MA, McMullan M, Dyer S, Swarbreck D, Caccamo M, Oosterhout CV, Gilmartin PM. Genetic architecture and evolution of the S locus supergene in Primula vulgaris. Nat Plants. 2016 Dec 2;2(12):16188. doi: 10.1038/nplants.2016.188.

Potente G, Léveillé-Bourret É, Yousefi N, Choudhury RR, Keller B, Diop SI, Duijsings D, Pirovano W, Lenhard M, Szövényi P, Conti E. Comparative Genomics Elucidates the Origin of a Supergene Controlling Floral Heteromorphism. Mol Biol Evol. 2022 Feb 3;39(2):msac035. doi: 10.1093/molbev/msac035.

Zhao H, Zhang Y, Zhang H, Song Y, Zhao F, Zhang Y, Zhu S, Zhang H, Zhou Z, Guo H, Li M, Li J, Gao Q, Han Q, Huang H, Copsey L, Li Q, Chen H, Coen E, Zhang Y, Xue Y. Origin, loss, and regain of self-incompatibility in angiosperms. Plant Cell. 2022 Jan 20;34(1):579-596. doi: 10.1093/plcell/koab266.