MATERNAL INHERITANCE OF THE CHLOROPLAST AND MITOCHONDRIAL GENOMES IN CHEILANTHOID FERNS
MATERNAL INHERITANCE OF THE CHLOROPLAST AND MITOCHONDRIAL GENOMES IN CHEILANTHOID FERNS
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DOI：
10.2307/2444887
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发表时间：
1992-06-01
影响因子：
3
通讯作者：
YATSKIEVYCH, G
中科院分区：
文献类型：
--
作者：
GASTONY, GJ;YATSKIEVYCH, G
来自叶绿体基因组的分子数据正被用于重建系统发育和修正有问题的旱适应蕨类植物的分类。基于叶绿体DNA的系统发育可追溯母系、父系或双亲系谱系，这取决于叶绿体基因组的遗传模式，并且在种子植物中已知所有三种遗传模式的实例。蕨类植物中存在双亲本和单亲本遗传的证据，但没有严格区分母本和父本单亲本遗传，而且在蕨类植物中的遗传模式是完全未知的。基于一个已知亲本和父本杂交后代的天然杂交种，叶绿体DNA的限制性片段长度多态性表明叶绿体基因组具有简单的母系遗传。该杂交复合体还检测了其线粒体DNA的限制性片段长度多态性，提供了蕨类植物线粒体基因组母系遗传的第一个直接证据。
Molecular data from the chloroplast genome are being used to reconstruct the phylogeny and revise the problematic taxonomy of the xerically adapted cheilanthoid ferns. Chloroplast DNA based phylogenies trace maternal, paternal, or biparental lineages, depending on the mode of inheritance of the chloroplast genome, and instances of all three modes of inheritance are known in the seed plants. Evidence for biparental and uniparental inheritance in ferns has been presented, but the distinction between maternal and paternal uniparental inheritance has not been rigorously made, and the mode of inheritance in cheilanthoid ferns is completely unknown. Based on a natural hybrid population in the cheilanthoid genus Pellaea in which the maternal and paternal derivations of the hybrid are unambiguously known, restriction fragment length polymorphisms of chloroplast DNA demonstrated simple maternal inheritance of the chloroplast genome. This hybrid complex was also examined for restriction fragment length polymorphisms of its mitochondrial DNA, providing the first direct evidence that the mitochondrial genome in ferns is maternally inherited.