Molecular phylogenetic analysis of Violaceae (Malpighiales) based on plastid and nuclear DNA sequences
Molecular phylogenetic analysis of Violaceae (Malpighiales) based on plastid and nuclear DNA sequences
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DOI：
10.1007/s10265-008-0153-0
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发表时间：
2008-03
影响因子：
2.8
通讯作者：
Toru Tokuoka
中科院分区：
文献类型：
--
作者：
Toru Tokuoka
利用19属39种植物的rbcL、atpB、matK和18 SrDNA序列对堇菜科植物进行系统发育分析。4个分子标记的联合分析仅得到1个最简约的树，在堇菜科38个节点中，有33个节点的支持率超过50%;梭孢属位于最基部，Rinorea、Decorsella、Rinoreocarpus和其他堇菜科植物依次分化。支持单属的Fusispermoideae亚科，它与西番莲科（Passifloraceae）共享许多近形（一个卷的花瓣夏眠，辐射对称的花和合生的花丝）。另一单属亚科Leonioideae是凹陷的亚科Violoideae和姐妹Gloeospermum，共享一些种子形态特征。目前的分子系统发育分析表明，旋卷，无足和梅花形花瓣夏眠是在家庭内依次衍生。对花丝合生、心皮数、花对称性等形态特征的演化趋势进行了讨论。
A phylogenetic analysis of Violaceae is presented using sequences fromrbcL,atpB,matKand 18S rDNA from 39 species and 19 genera. The combined analysis of four molecular markers resulted in only one most parsimonious tree, and 33 of all 38 nodes within Violaceae are supported by a bootstrap proportion of more than 50%.Fusispermumis in a basal-most position andRinorea,Decorsella,Rinoreocarpusand the other Violaceae are successively diverged. The monogeneric subfamily Fusispermoideae is supported, and it shares a number of plesiomorphies with Passifloraceae (a convolute petal aestivation, actinomorphic flowers and connate filaments). The other monogeneric subfamily Leonioideae is sunken within the subfamily Violoideae and is sister toGloeospermum, sharing some seed morphological characteristics. The present molecular phylogenetic analysis suggests that the convolute, apotact and quincuncial petal aestivation is successively derived within the family. The evolutionary trends of the other morphological characteristics, such as a filament connation, the number of carpels and floral symmetry, are discussed.