Pollen‐tube growth rate and seed‐siring success among <i>Betula pendula</i> clones

Pasonen, Hanna-Leena; Pulkkinen, Pertti; Käpylä, M.; Blom, Åsa

doi:10.1046/j.1469-8137.1999.00451.x

Cited by 54 publications

(60 citation statements)

References 59 publications

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“…For statistical testing, we transformed the proportion of seeds sired by Col-NPTII in each individual cross using an arcsine square root transformation. We then used these numbers to perform an independent t test sires, an idea supported by quite a few studies (Levin 1975;Pasonen et al 1999;Skogsmyr and Lankinen 1999;Spira 1991a, b, 1996). Many pollen tube growth studies are performed in vitro, in pollen growth medium.…”

Section: Pollen Germination: Quantifying Pollen Germination Efficiencymentioning

confidence: 99%

Incidence and post-pollination mechanisms of nonrandom mating in Arabidopsis thaliana

2009

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Compatible pollinations from many different taxa display nonrandom mating. Here we describe a system for examining questions of nonrandom mating in Arabidopsis thaliana. Using this system, we demonstrate that Arabidopsis thaliana displays nonrandom mating between distinct accessions. Statistical analysis of these data demonstrates aspects of both pollen competition and malefemale complementarity in these matings. Cytological experiments implicate pollen germination and pollen tube growth rates as possible causal factors in these nonrandom mating efficiencies.

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Section: Pollen Germination: Quantifying Pollen Germination Efficiencymentioning

confidence: 99%

Incidence and post-pollination mechanisms of nonrandom mating in Arabidopsis thaliana

2009

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“…For instance, Pasonen et al (1999) compared the seed-siring success of competing pollen donors in Betula pendula after two-donor hand-pollinations. Seed-siring success was significantly non-random in 20 out of 29 crosses involving six donors and eleven recipient plants selected for their specific isozyme marker.…”

Section: Variation Among Donor Plants In Seed Siring Successmentioning

confidence: 99%

Seed paternity in flowering plants: an evolutionary perspective

Bernasconi

2003

Perspectives in Plant Ecology, Evolution and Systematics

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the male function. Also, paternity can be the end result of competition for fertilization among pollen from one or several donors, selection processes occurring between pollen deposition and fertilization, and post-zygotic events such as seed abortion.Pre-zygotic competition and selection processes in flowering plants are relevant under several aspects (e.g. Snow & Lewis 1993;Delph & Havens 1998 AbstractThe ultimate importance of paternal contributions to fitness and of post-pollination selection in flowering plants have remained elusive, largely because of the technical difficulty of assigning paternity. I review empirical studies that use heritable markers to investigate per-fruit seed paternity in natural populations and after experimental multiple-donor pollination. Thirty-one studies covering 23 species from 16 plant families document that in natural populations seeds from a single fruit are often fathered by multiple pollen donors (5 species from 5 families), that donors can differ significantly in seed-siring success (8 species from 6 families), that variation in pollen tube growth rates can be heritable (n = 1 out of 4 studies), that donor and recipient genotypes can simultaneously affect paternity (n = 2), and that temporal order of pollen deposition (n = 1) and environmental effects (n = 2) affect the outcome of pollen competition. These studies also investigate the role of post-pollination selection in the avoidance of inbreeding and for species boundaries. Most studies of male reproductive success in plants to date base on isozyme electrophoresis. The availability in the last decade of highly polymorphic molecular markers such as microsatellite DNA has been expected to open new possibilities to investigate competition and selection during the gametophytic phase. Yet, to date, there is still need for greater data wealth on seed paternity to test theories of sex allocation and to gain deeper understanding of floral trait evolution and of the evolutionary consequences of post-pollination selection in flowering plants.

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“…However, the use of the Baker reagent to analyze Acacia mearnsii polyad viability was justified by the time savings, since samples with reduced viability could be detected and discarded in an initial analysis. [Brewbaker and Kwack (1963) Variation in pollen grain development was described in Betula pendula clones (Pasonen et al 2000), where a correlation was detected between the in vitro pollen tube growth and seed formation rates. Evidence suggested that male reproductive success was in fact controlled by the mother plant influenced by the pollen grain genotype and that it differed among trees and among pollen grains from the same individual (Snow andSpira 1996, Traveset 1999).…”

Section: In Vitro Germination and Pollen Tube Growthmentioning

confidence: 99%

Acacia meanmsii (Fabaceae) reproductive biology: pollen tube viability and growth

Stiehl-Alves¹,

Martins-Corder²

2007

CBAB

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-The low seed production in Acacia mearnsii De Wild. populations indicates that narrow genetic variability interferes with the reproduction. The viability of polyads of A. mearnsii trees from a seed production area was evaluated through in vitro germination and the colorimeter method. A high mean germination (73%) and low mean pollen tube growth (23%) were observed in the germplasm. Only tree 30 presented 60% germinated pollen tubes. The other means were less than 50%. On the other hand, the viability observed by the colorimeter method was high (100% viable polyads in five trees), which indicated that the colorimeter technique overestimated the true viability.This study showed that the germination ability of polyads was influenced by the genotype, contributing to a limited seed formation.

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Pollen‐tube growth rate and seed‐siring success among Betula pendula clones

Cited by 54 publications

References 59 publications

Incidence and post-pollination mechanisms of nonrandom mating in Arabidopsis thaliana

Incidence and post-pollination mechanisms of nonrandom mating in Arabidopsis thaliana

Seed paternity in flowering plants: an evolutionary perspective

Acacia meanmsii (Fabaceae) reproductive biology: pollen tube viability and growth

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