Phylogenetic analysis of the genus Pseudoroegneria and the Triticeae tribe using the rbcL gene |
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| Institution: | 1. Laboratório de Doenças Parasitárias, Escola de Medicina, Departamento de Ciências Biológicas & Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Campus Universitário, Morro do Cruzeiro, Ouro Preto, MG, Brazil;2. Instituto de Ciências Biomédicas, Departamento de Patologia e Parasitologia Básica, Universidade Federal de Alfenas, Alfenas, MG, 37130-001, Brazil;3. Departamento de Microbiologia e Parasitologia, Universidade Federal do Rio Grande do Norte, Natal, RN, Brazil;4. Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil;5. Fundação Ezequiel Dias, Rua Conde Pereira Carneiro, 80, Gameleira, Belo Horizonte, Minas Gerais, Brazil;1. School of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China;2. School of Life Science, Yunnan University, Kunming 650031, China;1. Nanomechanical Systems Research Division, Korea Institute of Machinery and Materials, Daejeon 305-343, Republic of Korea;2. Graduate School of Nanoscience and Technology, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-371, Republic of Korea;3. Department of Nano Mechatronics, Korea University of Science and Technology, Daejeon 305-350, Republic of Korea;4. Department of Electrical, Electronic, and Control Engineering, Hankyong National University, Anseong-Si, Gyeonggi-do 456-749, Republic of Korea;1. Pyrenean Institute of Ecology (CSIC), Avda. Montañana 1005, P.O. Box 13034, 50059 Zaragoza, Spain;2. Centre d’Estudis de la Neu i la Muntanya d’Andorra (CENMA – IEA), Avinguda Rocafort 21-23, Sant Julià de Lòria, Andorra;3. ARAID-Pyrenean Institute of Ecology (CSIC), Avda. Montañana 1005, P.O. Box 13034, 50059 Zaragoza, Spain;4. Departament d’Ecologia, Universitat de Barcelona, Avda. Diagonal 645, 08028 Barcelona, Spain |
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| Abstract: | The Pseudoroegneria species are perennial grasses in the Triticeae tribe, whose St genome has been linked to several important polyploid species. Due to frequent hybridization and complex genetic mechanism, the relationships within Pseudoroegneria, and within the Triticeae have been heavily disputed. Using the chloroplast rbcL gene we estimated the nucleotide diversity of 8 Pseudoroegneria species. We also examined the phylogenetic relationships within Pseudoroegneria and of Pseudoroegneria within the Triticeae. The estimates of nucleotide diversity indicated that Pseudoroegneria tauri and Pseudoroegneria spicata species had the highest diversity, while Pseudoroegneria gracillima had the lowest diversity. The phylogenetic analysis of Pseudoroegneria placed all P. spicata species into a clade separate from the other Pseudoroegneria species, while the relationship of the other Pseudoroegneria species could not be determined. Due to the groupings of Pseudoroegneria with the polyploid Elymus, our results strongly supported Pseudoroegneria as the maternal genome donor to Elymus. There was also weak support that P. spicata may be the maternal donor to the StH Elymus species. |
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| Keywords: | Triticeae Nucleotide diversity |
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