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理學院
生命科學專業學院—生命科學系
生物學報
生物學報
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http://rportal.lib.ntnu.edu.tw/handle/20.500.12235/148
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search.filters.author.吳瑞娥
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search.filters.author.王震哲
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search.filters.author.童武夫
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search.filters.subject.Trochodendrales
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search.filters.subject.Hamamelidales
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search.filters.subject.Lower hamamelidae
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search.filters.subject.Phylogeny
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search.filters.subject.trnL intron
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利用trnL intron序列分析低等金縷梅類植物分子親緣
(
國立臺灣師範大學生命科學學系
,
1999-12-??
)
吳瑞娥
;
童武夫
;
王震哲
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測定分布於東亞的低等金縷梅類植物6科10個代表種的tmL(UAA) intron DNA序列,期以界定低等金縷梅類植物的分子親緣關係。以木蘭科鵝掌楸屬(Liriodendron)及烏心石屬(Michelia)為外群分析峙,獲得一個最近鄰的樹型圖及四個最儉約的樹型圖,其中最儉約的步長為418,其CI值與RI值分別為0.832及0.792。從trnL ( UAA) intron基因樹的結果顯示:1.領春木科與法國梧桐科聚在一起;2.昆欄樹科和水青樹科關係較近,後者應併入前者;3.達香樹科與金縷梅科關係較近,應置於金縷梅科內。我們的結果推論這些由古老、孤立的科別所組成的低等金縷梅類植物應為異質類群(heterogeneous group)。
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