Capsella
Shepherd's purse, Capsella bursa-pastoris
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Brassicales
Family: Brassicaceae
Genus: Capsella
Medik.

Capsella is a genus of herbaceous plant and biennial plants in the family Brassicaceae.[1] It is a close relative of Arabidopsis, Neslia, and Halimolobos.[2]

Some authors circumscribe Capsella to contain only three species: Capsella bursa-pastoris, Capsella rubella and Capsella grandiflora.[2] As of 2020, Kew's Plants of the World Online list eight species.[3]

Capsella rubella is a self-fertilizing species that became self-compatible 50,000 to 100,000 years ago. Its outcrossing progenitor was Capsella grandiflora. In general, the shift from outcrossing to self-fertilization is among the most common transitions in flowering plants. Capsella rubella is studied as a model for understanding the evolution of self-fertilization.[4][5]

The name is said to derive from Latin capsa, a box or case, alluding to fruit resembling a medieval wallet or purse;[6] the suffix -ella denotes "lesser".[7]

Species

Species include:[3]

References

  1. ↑ "19. Capsella Medikus". Flora of China.
  2. 1 2 Slotte, T.; Ceplitis, A.; Neuffer, B.; Hurka, H.; Lascoux, M. (2006). "Intrageneric phylogeny of Capsella (Brassicaceae) and the origin of the tetraploid C. bursa-pastoris based on chloroplast and nuclear DNA sequences". American Journal of Botany. 93 (11): 1714–1724. doi:10.3732/ajb.93.11.1714. PMID 21642116.
  3. 1 2 "Capsella Medik". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 31 December 2020.
  4. ↑ Brandvain Y, Slotte T, Hazzouri KM, Wright SI, Coop G (2013). "Genomic identification of founding haplotypes reveals the history of the selfing species Capsella rubella". PLOS Genet. 9 (9): e1003754. arXiv:1307.4118. doi:10.1371/journal.pgen.1003754. PMC 3772084. PMID 24068948.
  5. ↑ Slotte T, Hazzouri KM, Ågren JA, Koenig D, Maumus F, Guo YL, Steige K, Platts AE, Escobar JS, Newman LK, Wang W, Mandáková T, Vello E, Smith LM, Henz SR, Steffen J, Takuno S, Brandvain Y, Coop G, Andolfatto P, Hu TT, Blanchette M, Clark RM, Quesneville H, Nordborg M, Gaut BS, Lysak MA, Jenkins J, Grimwood J, Chapman J, Prochnik S, Shu S, Rokhsar D, Schmutz J, Weigel D, Wright SI (July 2013). "The Capsella rubella genome and the genomic consequences of rapid mating system evolution". Nat. Genet. 45 (7): 831–5. doi:10.1038/ng.2669. PMID 23749190.
  6. ↑ "Capsella". Flora of North America. efloras.org. Retrieved 16 June 2020.
  7. ↑ Gledhill, D. (1985). The names of plants. Cambridge University Press. p. 82. ISBN 0521305497.
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