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Saturday, April 4, 2020
Tags Heterostyly

Tag: Heterostyly

Herkogamy and dichogamy in style dimorphic flowers of Narcissus broussonetii (Amaryllidaceae)

Across the plant kingdom, there is an extraordinary diversity of flower forms, many of which are related to variation in the morphology and arrangement...

Darwin’s Closer Look at Primroses

What did Darwin think was his most satisfying scientific work? It might not be what you thought.

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. bulleyana, and have the cpDNA of that species.

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...

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...

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...

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...

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Plants from different climates can react to drought in similar ways

How do plants react when circumstances change? One method can be to evolve a local adaptation. Another can be be phenotypic plasticity,...

Not All Pine Needles Are Identical: Lower Crown Loss in Pinus radiata

When fungal infection comes to Pinus radiata, it can run through the bottom of the crown of the tree, removing its leaves....

How do you get more DNA down a pollen tube?

A common event for flowering plants is whole genome duplication (WGD), where a plant gets extra chromosomes. It’s often studied in mature...

Simulating the effects of local adaptation and life history on the ability of plants to track climate shifts

Local adaptation is common but not universal in plants and results from the interplay of gene flow with natural selection. Gene flow...
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