期刊
PLANT SYSTEMATICS AND EVOLUTION
卷 304, 期 1, 页码 71-76出版社
SPRINGER WIEN
DOI: 10.1007/s00606-017-1449-0
关键词
Crossings; CpDNA inheritance; Hybrid swarms; Pinus mugo; Pinus sylvestris
资金
- VEGA Grant Agency [2/0063/17]
- project COST Action [FP1403]
- Operational Programme Research and Development project [ITMS 26220220192]
The opposite modes of chloroplast DNA (cpDNA) inheritance were found to operate in the reciprocal crossings of Scots pine (Pinus sylvestris L.) and mountain dwarf pine (Pinus mugo Turra). The crossings were found to be partially compatible. In P. sylvestris x P. mugo crossing, the paternal transmission of cpDNA to the offspring takes place corroborating the generally acknowledged concept of the paternal cpDNA inheritance in gymnosperms. On the contrary, in P. mugo x P. sylvestris crossing the seed progeny exhibited P. mugo haplotype of the mother tree deviating conspicuously from the above concept. In the open pollination offspring of the putatively hybrid individuals of the Scots and mountain dwarf pines, a biparental inheritance of cpDNA was revealed in mother tree with P. mugo haplotype indicating a loosened control of the maternal inheritance of cpDNA in the putative hybrids. Implications and impacts of this finding for further studies are discussed.
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