Genetic diversity and population structure inChrysolepis chrysophylla(golden chinquapin; Fagaceae): SSRs vs SNPs
| Autor: | Jennifer DeWoody, Valerie D. Hipkins, Andrew D. Bower, Ann Willyard, Jacob Snelling |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
0301 basic medicine Genetics Global and Planetary Change Genetic diversity Ecology biology Chrysolepis chrysophylla Population structure Forestry Single-nucleotide polymorphism Chrysolepis biology.organism_classification 010603 evolutionary biology 01 natural sciences Fagaceae 03 medical and health sciences 030104 developmental biology Genotype SNP |
| Zdroj: | Canadian Journal of Forest Research. 50:788-799 |
| ISSN: | 1208-6037 0045-5067 |
| DOI: | 10.1139/cjfr-2020-0009 |
| Popis: | Simple sequence repeat (SSR) and single nucleotide polymorphism (SNP) genotypes on the same plant samples of Chrysolepis chrysophylla (Douglas ex Hook.) Hjelmq. (Fagaceae; golden chinquapin) from 22 sites were used to determine genetic diversity and population structure. One site of C. sempervirens (Kellogg) Hjelmq. allowed interspecific vs. intraspecific comparisons. SSRs and SNPs yielded many similar results. Among-site variation contributed 13% to 17% of the genetic variation and Fstestimates of 0.14 to 0.17 were in the range expected among Fagaceae species rather than among populations within a species. The northern sites tended to group separately on the first two axes of multivariate scatterplots from southern sites. Sites in two geographically isolated areas were divergent: (i) the Hood Canal, Washington population was relatively more genetically distant from other golden chinquapin sites than was our C. sempervirens site; (ii) three coastal southern California sites were moderately diverged. The Hood Canal site had a negative inbreeding coefficient, fewer alleles, lower heterozygosity, and differed from the Skamania County, Washington site as well as all other sites. Hood Canal trees are distinguished by disjunct geography and by these molecular results. This suggests that the golden chinquapin near Hood Canal be treated as a management unit, and potential conservation actions are discussed. |
| Databáze: | OpenAIRE |
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