Evolution of sprouting versus seeding inAspalathus linearis

@article{Bank2005EvolutionOS,
  title={Evolution of sprouting versus seeding inAspalathus linearis},
  author={Michelle van der Bank and F. H. Bank and B-E. van Wyk},
  journal={Plant Systematics and Evolution},
  year={2005},
  volume={219},
  pages={27-38}
}
We have tested the hypothesis that reseeding is a plesiomorphic character state and that sprouting is a derived state inAspalathus linearis, and that the latter is an adaptation to ensure fire-survival in a fireprone environment. Samples of five seeder and four sprouter populations of A.linearis were examined by horizontal starch gel electrophoresis to assess the amount of genetic differentiation within and between sprouting and seeding populations, and to determine the extent of gene flow… 
Resprouters Versus Reseeders: Are Wild Rooibos Ecotypes Genetically Distinct?
TLDR
The hypothesis that wild rooibos ecotypes are distinct in genetic variability and that the ecotypes found in the Northern Cape are differentiated from those in the Cederberg that may be linked to a fire-survival strategy as well as distinct morphological and phytochemical differences is tested.
Fitness and evolution of resprouters in relation to fire
TLDR
Seven fitness benefits of post-fire resprouting are noted that centre around the rapid return to adult growth rates and early flowering and seed set without the risks of recruitment failure, indicating that seed plants have had a long evolutionary relationship with fire.
Transcriptomics of the Rooibos (Aspalathus linearis) Species Complex
TLDR
Methods for non-invasive transcriptome research of wild-growing South African plant species, including harvesting and transport of plant material suitable for RNA sequencing, are established and four in-depth annotated transcriptomes from rooibos plants that represent distinct growth forms and differ in their biochemical profiles are generated.
Germination Patterns of Soil Seed Banks in Relation to Fire in Portuguese Littoral Pine Forest Vegetation
TLDR
Results suggest that pioneer seeder behavior is largely promoted by wildfires that are, in turn, detrimental to slow-growing, late-sucessional tall shrubs and forest fire hazard risk management can be put into perspective.
Inferring differential evolutionary processes of plant persistence traits in Northern Hemisphere Mediterranean fire‐prone ecosystems
1 Resprouting capacity (R) and propagule‐persistence (P) are traits that are often considered to have evolved where there are predictable crown fires. Because several indicators suggest a stronger
Seasonal variation in the nitrogen nutrition and carbon assimilation in wild and cultivated Aspalathus linearis (rooibos tea)
TLDR
Wild and cultivated rooibos tea had different methods of adapting to nitrogen (N) nutrition and carbon (C) assimilation during wet and dry seasons, and the wild plants were better able to tolerate summer drought by increased water use efficiency and maintaining higher levels of biological N2 fixation.
...
...

References

SHOWING 1-10 OF 41 REFERENCES
GENETIC VARIATION IN LATHYRUS LATIFOLIUS (LEGUMINOSAE)
TLDR
The level of genetic diversity maintained within L. latifolius populations, and the level of population divergence found, is strongly influenced by its status as a cultivated garden flower and its humanassociated mode of gene flow via seed dispersal.
Fire-survival strategy — a character of taxonomic, ecological and evolutionary importance in fynbos legumes
TLDR
In fynbos legumes sprouting and non-sprouting taxa differ in their habitat specificity, population densities, relative regional abundance, and in seed germination tempo, so problems relating to the use of sprouting versus non-Sprouting as a taxonomic character in fyn Bos legumes are addressed and possible solutions are given.
Isozymes and the Analysis of Genetic Structure in Plant Populations
TLDR
Genetic variation in plant populations is distributed nonrandomly, with marked genetic differences occurring over short distances, like the plants themselves, genes and genotypes tend to be clumped.
Enzyme polymorphism in plant populations
Allozyme diversity in endemic flowering plant species of the Juan Fernandez Archipelago, Chile: ecological and historical factors with implications for conservation.
TLDR
High mean G(ST) values for the species examined illustrate the need for conserving as many populations as possible, either in the wild or in the garden, to preserve maximal diversity within species.
ECOLOGICAL DETERMINANTS OF GENETIC STRUCTURE IN PLANT POPULATIONS
TLDR
This work limits the definition of genetic structure to the nonrandom distribution of alleles or genotypes in space or time and disregard genome organization and meiotic processes that can also affect allele and genotype frequencies.
Fire and its role in coexistence and speciation in Gondwanan shrublands
The floras mediterranean south-western Australian shrublands (kwongan) and south-western Cape jynbos have evolved under conditions low soil nutrients and recurrent The vegetatiOn oj both regions,
Genetic Variation and Longevity
TLDR
The majority of forest tree species have considerable amounts of genetic variation within, as well as between, populations, but red pine is a notable exception, in which little genetic variation has been demonstrated.
...
...