Results 121 to 130 of about 521 (165)
Some of the next articles are maybe not open access.

The primrose path to heterostyly

New Phytologist, 2006
Austin Mast, Elena Conti
exaly   +3 more sources

EXPERIMENTAL STUDIES ON THE FUNCTIONAL SIGNIFICANCE OF HETEROSTYLY [PDF]

open access: yesEvolution; International Journal of Organic Evolution, 1992
Heterostyly has been viewed as both an antiselfing device and a mechanism that increases the proficiency of pollen transfer between plants. We used experimental manipulation of the morph structure of garden populations of self-compatible, tristylous Eichhornia paniculata to investigate the function of floral polymorphism.
Spencer Barrett
exaly   +3 more sources

The biology of heterostyly

New Zealand Journal of Botany, 1979
Abstract Heterostyly is a genetically controlled floral polymorphism that is known to occur in 24 families of flowering plants. The floral morphs differ reciprocally in stamen and style lengths. They often differ in pollen grain size and production, and may differ in pollen exine sculpturing, pollen colour ...
Fred R Ganders
exaly   +2 more sources

Phylogeographic insights on the evolutionary breakdown of heterostyly [PDF]

open access: yesNew Phytologist, 2017
Summary The breakdown of heterostyly to homostyly is a classic system for the investigation of evolutionary transitions from outcrossing to selfing. Loss of sexual polymorphism is characterized by changes to population morph structure and floral morphology.
, Hai-Dong Li, De-Zhu Li
exaly   +3 more sources

Heterostyly

Current Biology
Scharman and Lenhard introduce heterostyly, a phenomenon where individuals in a plant population produce flowers with more than one morphologically distinct form.
Michael Lenhard
exaly   +3 more sources

Is heterostyly rare on oceanic islands? [PDF]

open access: yesAoB PLANTS, 2015
Heterostyly has been considered rare or absent on oceanic islands. However, there has been no comprehensive review on this issue. Is heterostyly truly rare on oceanic islands? What makes heterostyly rare on such islands? To answer these questions, we review the reproductive studies on heterostyly on oceanic islands, with special emphasis on the ...
Kenta Watanabe
exaly   +3 more sources

The Selection of Heterostyly

1992
Since heterostyly became well known over a century ago, botanists have consistently proposed that its adaptive significance lies in the encouragement it provides for outcrossing. Darwin (1877, p. 258) for example, wrote that “We may feel sure that plants have been rendered heterostyled to ensure cross-fertilization, for we know that a cross between the
D. G. Lloyd, C. J. Webb
openaire   +1 more source

The Evolution of Heterostyly

1992
Charles Darwin was fascinated by the phenomenon of heterostyly. He described (1862, 1877) how he first thought that pin and thrum plants of Primula species represented female and male sexes respectively, but found that they were both functionally hermaphroditic. He demonstrated the infertility of self-pollinations and crosses between plants of the same
D. G. Lloyd, C. J. Webb
openaire   +1 more source

The Genetics of Heterostyly

1992
Breeding experiments on the genetics of heterostyly began in the 19th century led by Hildebrand (1866) and by Darwin (1877), before Mendel’s work was rediscovered in 1900. Bateson and Gregory (1905) introduced their paper on the inheritance of heterostylism in Primula with the statement: “In view of the results obtained by Darwin, Hildebrand and others,
D. Lewis, D. A. Jones
openaire   +1 more source

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