Genetic diversity in tetraploid populations of the endangered daisy Rutidosis leptorrhynchoides and implications for its conservation

Article Abstract:

Tetraploid populations of the self-incompatible endangered daisy Rutidosis leptorrhynchoides have been studied relative to genetic diversity. Implications for conservation of this cytologically complex species were considered. The daisy is a good example of populations that are of interest for relative variability status, mode of inheritance, population divergence and gene flow, with polyploidy an important variable. Tetrasome inheritance was found and confirmed an autopolyploid genetic system and other factors.

Plant cytogenetics, Plant population genetics, Plant conservation, Isoenzymes

---

Low neighbourhood size and high interpopulation differentiation in the endangered shrub Grevillea iaspicula McGill (Proteaceae)

Article Abstract:

High interpopulation and low neighborhood size differentiation have been studied in the endangered shrub Grevillea iaspicula Mc Gill (Proteaceae). Gene flow is apparently limited, even among populations separated by just a few kilometers.

Plant genetics, Endangered species, Biological diversity, Biodiversity, Shrubs

---

Population size, self-incompatibility and genetic rescue in diploid and tetraploid races of Rutidosis leptorrhynchoides (Asteraceae)

Article Abstract:

The variations observed in the population size, self-incompatibility and the genetic rescue in the diploid and tetraploid races of Rutidosis leptorrhynchoides (Asteraceae) are presented. The results show that the fertilization success of both these races reduces majorly with a decrease in the self-incompatibility allele (S-allele) diversity.

Science & research, Sexual behavior, Allelomorphism, Alleles, Pollination, Compositae, Asteraceae

Similar abstracts:

• Abstracts: Low levels of genetic differentiation among populations of the freshwater fish Hyseleotris compressa (Gobiidae: Eleotridinae): implications for its biology, population connectivity and history
• Abstracts: Genetic diversity and temporal variation in the cyanophage community infecting marine Synechococcus species in Rhode Island's coastal waters
• Abstracts: Spatial and temporal variations in chitinolytic gene expression and bacterial biomass production during chitin degradation
• Abstracts: Solution structure of the interacting domains of the Mad-Sin3 complex: implications for recruitment of a chromatin-modifying complex
• Abstracts: Genetic similarity of flag shoot and ascopore subpopulations of Erysiphe necator in Italy. Variation in tolerance and virulence in the chestnut blight fungus-hypovirus interaction

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.