Biodiversity assessment based in cpDNA and crossability analysis in selected species of Allium subgenus Rhizirideum
| Autor: | A.W. van Heusden, L.W.D. van Raamsdonk, Chris Kik, M. Vrielink-van Ginkel, W. Ensink |
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| Jazyk: | angličtina |
| Rok vydání: | 2003 |
| Předmět: |
Molecular Sequence Data
Centrum voor Genetische Bronnen Nederland RIKILT - Business Unit Veiligheid & Gezondheid Allium senescens phylogeny amplified polymorphic dna Allium common onion PRI Biodiversiteit en Veredeling Botany Genetics hybridization hybrids Genetic diversity l section cepa biology Phylogenetic tree Base Sequence alliaceae sterility DNA Chloroplast food and beverages General Medicine Biodiversity Sequence Analysis DNA biology.organism_classification populations Biosystematiek PRI Biodiversity and Breeding chloroplast dna Chloroplast DNA Genetic distance Allium pskemense RIKILT - Business Unit Safety & Health Biosystematics Subgenus Agronomy and Crop Science Sequence Alignment Biotechnology |
| Zdroj: | Theoretical and Applied Genetics, 107(6), 1048-1058 Theoretical and Applied Genetics 107 (2003) 6 |
| ISSN: | 0040-5752 |
| Popis: | The chloroplast DNA diversity of 33 accessions belonging to 16 species of five sections in Allium subgenus Rhizirideum was studied by analysing the sequence of three fragments: the trnL-F intergenic spacer, the rps 16 intron and rbcL (rubisco large subunit). The three sections Cepa, Schoenoprasum and Rhizirideum, representing the majority of the included species, each possess a separate clade after phylogenetic analysis. Exceptions to this general rule are the placement of Allium pskemense (section Cepa) connected to Allium senescens (section Rhizirideum) and Alium roylei, taking an intermediate position between sections Cepa and Schoenoprasum. Both species were located in their own section after nuclear DNA analysis. A range of crossing experiments has been carried out. The different position of A. roylei when comparing cpDNA and nDNA diversity was not confirmed with the production of hybrid seeds after crossing A. roylei with species other than those of section Cepa. The different position of A. pskemense in the cpDNA and the nDNA tree can not be compared to its crossability, since only a few crossing experiments are reported for this species. The hypothesis that a shorter distance between two species in a cpDNA tree compared to their distance in a nDNA tree will indicate interfertility at a certain level, is neither confirmed nor rejected by the currently available results. |
| Databáze: | OpenAIRE |
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