Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/21178
標題: 臺灣產骨碎補科植物之核型研究
Studies on Karotypes of the Davalliaceae in taiwan
作者: 萬淑惠
Wan, Su-Huei
關鍵字: Davalliaceae;骨碎補科;Chromosome;Karyotypes;染色體;核型
出版社: 植物學系
摘要: 
台灣產骨碎補科植物(Davalliaceae)有 7屬16種。本文中共記載 7屬12種
之染色體研究。本實驗以醋酸洋紅壓碎法製片,觀察根尖或莖葉頂芽之染
色體數目及形態、大小。7屬12種中,台灣小膜蓋蕨、大膜蓋蕨、大葉骨
碎補、闊葉骨碎補、海州骨碎補、腎蕨、長葉腎蕨、毛葉腎蕨、高山蓧蕨
為二倍體,陰石蕨為三倍體,藤蕨為四倍體,多倍體發生頻率為17%。陰
石蕨為無配生殖,發生頻率為 8%。其餘為有性生殖。多倍體及無配生殖
發生頻率之低,顯示本科在演化上為不活躍之科。本科植物之染色體基數
為 x=40、x=41兩種。就核型的研究而言,杯狀蓋陰石蕨和海州骨碎補之
型率柱狀分佈圖相似;藤蕨和腎蕨之染色體形態分類百分比相近。由此可
推測杯狀蓋陰石蕨與海州骨碎補、藤蕨與腎蕨之親緣關係較密切。

The Davalliaceae in Taiwan includes 7 genera and 16 spe- cies.
The chromosomes of 12 species belong to the 7 genera are
studied . For researching of their karyotypes ,the acetocarmine
squash method is used to view root tips or stem apices for
investiga- ting the chromosome numbers ,size and shape. Of
those plants , Araiostegia parvipinnata ,Leucostegia immersa,
Davallia marriesii ,D.formosana,D.subsolida,Humata griffithiana,
Oleandra wallichii , Nephrolepis auriculata , N. hirsutula and
N. biserrata are diploids.However,H.repens is triploid and
Arthropteris obliterata is tetraploid. The frequency of
polyploids is 17%. H. repens proceeds the apogamic reproduction
and the others normal sexual reproduction,The apogamic
appearance is 8%. The low occurances of polyploid and apogamy
among this family, indicate the Davalliaceae being inactive in
evolution. The chromosome basic numbers in this familly are
x=40 ,41 . Point on the karyotype studies, D. maariesii and H.
griffithiana are very resemble in form percent; Arthropter
obliterata and N. auriculata are the same with form percent.
URI: http://hdl.handle.net/11455/21178
Appears in Collections:生命科學系所

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