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Nuclear And Chloroplast Dnas Reveal Diverse Origins And Mis-Identifications Of Juniperus Cultivars From Windsor Gardens, Uk, Part 3 Of 3, Robert P. Adams, Sam T. Johnson, John Anderson, Keith Rushforth, Nicolas Valentin, Andrea E. Schwarzbach, Sonja Siljak-Yakovlev
Nuclear And Chloroplast Dnas Reveal Diverse Origins And Mis-Identifications Of Juniperus Cultivars From Windsor Gardens, Uk, Part 3 Of 3, Robert P. Adams, Sam T. Johnson, John Anderson, Keith Rushforth, Nicolas Valentin, Andrea E. Schwarzbach, Sonja Siljak-Yakovlev
Health & Biomedical Sciences Faculty Publications and Presentations
Ploidy was determined for 15 plants labeled as Juniperus squamata at the Windsor Gardens, UK and revealed 12 were tetraploids (2n=4x=44) and 3 were diploids (2n=2x=22). nrDNA (ITS) and cp DNA sequencing the tetraploids found: 4 J. squamata (4x); 4 J. tibetica (4x) x J. squamata (4x); 2 J. sabina var. balkanensis (4x) x J. squamata (4x); and one J. chinensis var. sargentii (4x) x J. squamata (4x). Sequencing the 3 diploids revealed: 2 J. pingii (2x) x J. pingii (2x); and 1 J. pingii (2x)? x J. komarovii(2x)? Ploidy analyses of 18 additional cultivars, putatively from Juniperus davurica, J. …
Long Distance Gene Flow Facilitated By Bird-Dispersed Seeds In Wind-Pollinated Species: A Story Of Hybridization And Introgression Between Juniperus Ashei And J. Ovata Told By Nrdna And Cpdna, Robert P. Adams, Sam T. Johnson, Andrea E. Schwarzbach
Long Distance Gene Flow Facilitated By Bird-Dispersed Seeds In Wind-Pollinated Species: A Story Of Hybridization And Introgression Between Juniperus Ashei And J. Ovata Told By Nrdna And Cpdna, Robert P. Adams, Sam T. Johnson, Andrea E. Schwarzbach
Health & Biomedical Sciences Faculty Publications and Presentations
nrDNA and cpDNA were sequenced of J. ashei and J. ovata from populations throughout their ranges. No J. ashei populations were found to be pure in their nrDNA for every tree, however all J. ashei trees in every population contained only the pure J. ashei chloroplast type. Populations of J. ovata in trans-Pecos Texas were almost pure in both nrDNA and cp DNA. Several plants in the J. ashei range contained J. ovata-type nrDNA (White Cliffs, AR, 3/10); Ranger, TX (1/5); Waco, TX (1/12). Every J ashei population contained at least 1 plant with hybrid (heterozygous) nrDNA and 3 J. …