Results 171 to 180 of about 1,510 (202)
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Parallel evolution of morphological and genomic selfing syndromes accompany the breakdown of heterostyly.

New Phytologist
Evolutionary transitions from outcrossing to selfing in flowering plants have convergent morphological and genomic signatures and can involve parallel evolution within related lineages.
Zhi-Hua Zeng   +8 more
semanticscholar   +1 more source

Functional heterostyly in Tylosema esculentum (Caesalpinioideae). [PDF]

open access: yesAnnals of Botany, 2002
Tylosema esculentum is a long-lived perennial species endemic to arid areas of southern Africa. Its potential as a crop species has long been recognized as a result of the high oil and protein content of its seeds. The reproductive biology and breeding systems of the species were investigated in wild and experimental populations growing in Botswana ...
Mary Luisa, Hartley   +2 more
exaly   +3 more sources

Evolution and function of heterostyly

Trends in Ecology & Evolution, 1992
A century of research on heterostylous plants has passed since the publication of Charles Darwin's book "The Different Forms of Flowers on Plants of the Same Species" in 1877 summarizing his extensive observations and experiments on these complex breeding systems involving genetic polymorphisms of floral sex organs.
openaire   +2 more sources

The evolution and adaptive significance of heterostyly

Trends in Ecology & Evolution, 1990
The origin and adaptive significance of heterostylous breeding systems have fascinated evolutionary biologists since Darwin's early work on the subject. Models of the evolution of heterostyly differ in the emphasis given to different selective forces and in the sequence in which the physiological and morphological components of the polymorphism are ...
openaire   +2 more sources

Heterostyly in the Lamiaceae: The case ofSalvia brandegeei

Plant Systematics and Evolution, 2000
Heterostyly rarely occurs in families with strongly zygomorphic flowers. For this reason Darwin (1877) doubted whether heterostyly would occur in the Lamiaceae and recent reviews have not reported the floral polymorphism in this family. Here we describe distyly in a rare species ofSalvia restricted to bluffs and seaward canyons on Santa Rosa Island ...
Spencer Charles Hilton Barrett
exaly   +2 more sources

Heterostyly and the possibility of its breakdown by polyploidization

Plant Species Biology, 2012
Abstract Heterostyly is a genetically controlled sexual polymorphism promoting outcrossing by animal pollinators. The occurrence of heterostyly in angiosperms was investigated, and 199 genera in 28 families in 15 orders were recognized as taxa that contain heterostylous species.
Akiyo Naiki
exaly   +2 more sources

Historical Perspectives on Heterostyly

1992
Heterostyly was recognized as a morphological feature of certain groups of flowering plants as early as the 16th century, when it was reputedly noted in Primula by Clusius (van Dijk 1943). Few, if any, attempts were made to interpret the adaptive significance of this floral heteromorphism until Charles Darwin and Friedrich Hildebrand studied the ...
openaire   +1 more source

Genome sequencing reveals the genetic architecture of heterostyly and domestication history of common buckwheat

Nature Plants, 2023
Jeffrey A. Fawcett   +27 more
semanticscholar   +1 more source

Heterostyly in Erythroxylum coca (Erythroxylaceae)

Botanical Journal of the Linnean Society, 1979
Erythroxylum coca is a distylous species with a strong self-incompatibility system linked with the floral dimorphism.
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Heterostyly inBiophytum sensitivum DC

Journal of Genetics, 1964
Heterostylism inBiophytum sensitivum DC. is described with measurements of style and anther lengths and pollen grain diameters. The fertility of different crosses is compared. One type of illegtimate union is moderately fertile.
openaire   +1 more source

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