Autor: |
Robert M. Pyne, Josh A. Honig, Jennifer Vaiciunas, Christian A. Wyenandt, James E. Simon |
Jazyk: |
angličtina |
Rok vydání: |
2018 |
Předmět: |
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Zdroj: |
BMC Plant Biology, Vol 18, Iss 1, Pp 1-15 (2018) |
Druh dokumentu: |
article |
ISSN: |
1471-2229 |
DOI: |
10.1186/s12870-018-1284-7 |
Popis: |
Abstract Background The basil (Ocimum spp.) genus maintains a rich diversity of phenotypes and aromatic volatiles through natural and artificial outcrossing. Characterization of population structure and genetic diversity among a representative sample of this genus is severely lacking. Absence of such information has slowed breeding efforts and the development of sweet basil (Ocimum basilicum L.) with resistance to the worldwide downy mildew epidemic, caused by the obligate oomycete Peronospora belbahrii. In an effort to improve classification of relationships 20 EST-SSR markers with species-level transferability were developed and used to resolve relationships among a diverse panel of 180 Ocimum spp. accessions with varying response to downy mildew. Results Results obtained from nested Bayesian model-based clustering, analysis of molecular variance and unweighted pair group method using arithmetic average (UPGMA) analyses were synergized to provide an updated phylogeny of the Ocimum genus. Three (major) and seven (sub) population (cluster) models were identified and well-supported (P |
Databáze: |
Directory of Open Access Journals |
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