Microsatellite variation and assessment of genetic structure in tea tree (Melaleuca alternifolia-Myrtaceae)

Autor:	M, Rossetto, R W, Slade, P R, Baverstock, R J, Henry, L S, Lee
Rok vydání:	1999
Předmět:	Genetics Population Plants Medicinal Tea Tree Oil Australia Oils Volatile Genetic Variation Plant Oils Biological Evolution Crosses Genetic Microsatellite Repeats Trees
Zdroj:	Molecular ecology. 8(4)
ISSN:	0962-1083
Popis:	Analysis of five microsatellite loci in 500 Melaleuca alternifolia individuals produced 98 alleles that were useful for population genetic studies. Considerable levels of observed heterozygosity were recorded (HO = 0.724), with approximately 90% of the variability being detected within populations. A low level of selfing (14%) was suggested to be the principal cause of excess homozygosity in a number of populations (overall FIS = 0.073). This study showed low levels of inbreeding in certain populations as well as a significant isolation-by-distance model. Only two groups of populations (Queensland and New South Wales) constituted different genetic provenances as a result of geographical isolation. The M. alternifolia data suggest that microsatellite loci did not always arise by a stepwise mutation process but that larger jumps in allele size may be involved in their evolution.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=pmid________::9229c1da7a31ead922ee18e49016935d https://pubmed.ncbi.nlm.nih.gov/10327658 Zobrazit plný text záznamu Plný text