期刊
PLANT SYSTEMATICS AND EVOLUTION
卷 226, 期 1-2, 页码 35-58出版社
SPRINGER WIEN
DOI: 10.1007/s006060170072
关键词
Rosaceae; Malus; apple; chloroplast DNA; nuclear DNA; phylogeny
Twenty-nine Malus species. 12 M. domestica cultivars and representative outgroup taxa were chosen for sequence analysis of the internal transcribed spacer of nuclear ribosomal DNA and the matK region of the chloroplast genome, in order to develop an explicit phylogenetic hypothesis for the genus and identify potential germplasm donors to the domesticated apple, M. domestica. Maximum parsimony analysis generated nuclear and chloroplast cladograms that provide reasonable resolution of sub-generic groups, as recognised in classifications. All of the close relatives of M. domestica occur in a poorly resolved series Malus clade. Two matK duplications were found, one in series Malus and the other in most M. domestica cultivars and one Central Asian;M. sieversii accession.
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