Abstract
In order to obtain a better knowledge about the endangered species Colletia paradoxa (Rhamnaceae), which appears in fragmented populations, a study was carried out with six populations from different physiographic regions of Rio Grande do Sul and Santa Catarina states, Brazil. The objective of this study is to investigate the real conditions of genetic diversity in populations, through the use of inter simple sequence repeat (ISSR) molecular marker, and to evaluate the distribution of genetic diversity among and within populations, in order to plan conservation and management strategies. Five selected primers produced 112 DNA fragments in 46 samples from individuals that were evaluated. The result of the analyses showed 100% polymorphism. Nei’s genetic diversity index (H) was 0.3083. Shannon’s information index (I) was 0.4880. Bayesian inference of clustering performed by Structure revealed the most likely K = 4 to C. paradoxa. The analysis of molecular variance among all populations showed that the greatest genetic diversity occurs within the populations (82%), while among them there is less differentiation (18%), although in some populations good levels of genetic migration occur (Nm = 1.0465) indicating that genetic exchanges among populations of C. paradoxa are still occurring.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Plant Biosystems - An International Journal Dealing with all Aspects of Plant Biology
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
