Across the plant kingdom, there is an extraordinary diversity of flower forms, many of which are related to variation in the morphology and arrangement of reproductive organs. To prevent self-pollination, plants have...
Tag - Heterostyly
William Salter
Darwin’s Closer Look at Primroses
What did Darwin think was his most satisfying scientific work? It might not be what you thought.
Ian Street
Unidirectional hybridization in heterostylous primroses
Ma et al. study a natural hybrid zone between two heterostylous primrose species, Primula beesiana and P. bulleyana, and find that all hybrid derivatives examined are backcrosses of first or later generations to P...
botanyone
Variation and evolution of herkogamy in Exochaenium
The spatial separation of stigmas and anthers (herkogamy) functions to reduce self-pollination and avoid interference between pollen dispersal and receipt. Little is known about the evolutionary relationships among the...
Sexual organ reciprocity in distylous primroses
The main morphological characteristic of heterostyly is the reciprocal placement of anthers and stigmas in two distinct floral morphs; however, the partitioning of reciprocity within and between closely related species...
QTL analysis of heterostyly in Primula
Heterostyly and self-incompatibility are usually controlled by the S locus complex, but the usually distylous Primula siebolodii shows continuous variation of anther and stigma position in some populations. Yoshida et...
Style polymorphism in Nivenia (Iridaceae)
Heterostyly is widely distributed among the angiosperms, but detailed studies are limited to few taxonomic groups. Sánchez et al. (pp. 321–331) ascertain the presence of different stigma height polymorphisms among...
Editor Pat Heslop-Harrison