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Chloroplast capture : ウィキペディア英語版 | Chloroplast capture
Chloroplast capture is an evolutionary phenomenon that an inter-species hybridization and subsequent backcrossing genetic exchanges would yield a plant with new genetic combination.〔Rieseberg. L. H. and Soltis, D. E. (1991) (Phylogenetic consequences of cytoplasmic gene flow in plants ). Evolutionary Trends in Plants 5: 65-84〕 For instance, 1) species A's (having chloroplast genome a and nuclear genome AA) pollen is hybridize (backcross) to species B's (b and BB) ovule, then 1st hybrid (F1) with chloroplast genome b and nuclear genome A (50%) and B (50%) comes; 2) species A's pollen is again hybridize (backcross) to F1's ovule, then 2nd hybrid (F2) with chloroplast genome b and nuclear genome A (75%) and B (25%) comes; 3) species A's pollen is again hybridize (backcross) to F2's ovule, then 3rd hybrid (F3) with chloroplast genome b and nuclear genome A (87.5%) and B (12.5%) comes; 4) after some generations, a plant with new genetic combination (chloroplast genome b and nuclear genome A) will rise. ==Known cases of chloroplast capture==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Chloroplast capture」の詳細全文を読む
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