Results 11 to 20 of about 6,574,819 (220)
Pollination and late-acting self-incompatibility in Cyrtanthus breviflorus (Amaryllidaceae): implications for seed production. [PDF]
Ann Bot, 2010 Animal pollination is typically an uncertain process that interacts with self-incompatibility status to determine reproductive success. Seed set is often pollen-limited, but species with late-acting self-incompatibility (SI) may be particularly vulnerable, if self-pollen deposition results in ovule discounting.
Vaughton G, Ramsey M, Johnson SD.
europepmc +6 more sources
Histological study of post-pollination events in Spathodea campanulata beauv. (Bignoniaceae), a species with late-acting self-incompatibility. [PDF]
Ann Bot, 2003 The reproductive biology of Spathodea campanulata was investigated by means of hand-pollination experiments, observations of pollen tube growth using fluorescence microscopy, and serial sections of ovules in selfed and crossed pistils. Only cross-pollinated flowers developed fruits, and all selfed flowers abscised within 3-4 d.
Bittencourt NS, Gibbs PE, Semir J.
europepmc +7 more sources
Do s genes or deleterious recessives control late-acting self-incompatibility in Handroanthus heptaphyllus (Bignoniaceae)? A diallel study with four full-sib progeny arrays. [PDF]
Ann Bot, 2021 AbstractBackground and AimsGenetically controlled self-incompatibility (SI) mechanisms constrain selfing and thus have contributed to the evolutionary diversity of flowering plants. In homomorphic gametophytic SI (GSI) and homomorphic sporophytic SI (SSI), genetic control is usually by the single multi-allelic locus S.
Bianchi MB, Meagher TR, Gibbs PE.
europepmc +9 more sources
Acta Botânica Brasílica, 2021 There are two homomorphic self-incompatibility (SI) mechanisms among flowering plants - gametophytic self-incompatibility (GSI) and sporophytic self-incompatibility (SSI).
Marta Beatriz Bianchi +1 more
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Ideas in Ecology and Evolution, 2018 Most heterostylous species show self- and intra-morph incompatibility and models established for such taxa have traditionally been applied to the evolution of stylar dimorphism and heterostyly in Narcissus, a genus with late-acting self-incompatibility ...
Violeta Irene Simón-Porcar
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Beverage Plant Research, 2023 Self-incompatibility (SI) is a kind of plant fertilization obstacle, which can prevent the harmful effects of inbreeding decline, but it hinders the breeding of inbred lines.
Shengrui Liu +9 more
doaj +3 more sources
Late-acting self-incompatibility in Acca sellowiana (Myrtaceae)1
Australian Journal of Botany, 2011 Acca sellowiana (Berg) Burret is a predominantly allogamous species with hermaphrodite flowers that has barriers to self-fertilisation such as dichogamy by protogyny and self-incompatibility. This study aimed to identify when self-incompatibility occurs in A. sellowiana flowers submitted to self-pollinations.
Taciane Finatto +7 more
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Floral biology and late-acting self-incompatibility in Jacaranda racemosa (Bignoniaceae)
Australian Journal of Botany, 2006 Breeding-system studies have been conducted with 38 of the approximately800 species of Bignoniaceae, and self-incompatibility was found in 31 of these. In species for which the site of self-incompatibility barrier was studied, self-pollinated flowers consistently failed to develop into fruits, even though pollen tubes grew down to the ovary and ...
Bittencourt, N. S., Semir, J.
core +4 more sources
Plants, 2020 In most species of Pleurothallidinae, the self-incompatibility site occurs in the stylar canal inside the column, which is typical of gametophytic self-incompatibility (GSI).
Mariana Oliveira Duarte +2 more
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Late‐Acting Self‐Incompatibility and Other Breeding Systems inTabebuia(Bignoniaceae)
International Journal of Plant Sciences, 2005 Although breeding system investigations were previously performed in only nine of the 100 Tabebuia species, indications of self‐incompatibility have been found in all of them, and the four species studied for the site of incompatibility reaction showed some kind of late‐acting self‐incompatibility. Polyembryony has been found in T.
Nelson Sabino Bittencourt Jr. +1 more
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