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.

User Contributions:

Comment about this article or add new information about this topic:

Comment:  (50-4000 characters)

Name:

E-mail:

Security Code:

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.

User Contributions:

Comment about this article or add new information about this topic:

Comment:  (50-4000 characters)

Name:

E-mail:

Security Code:

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.

User Contributions:

Comment about this article or add new information about this topic:

Comment:  (50-4000 characters)

Name:

E-mail:

Security Code: