×Lindsaeosoria flynnii (Lindsaeaceae), Another Confirmed Example of Deep Hybridization Among the Ferns
×Lindsaeosoria flynnii (Lindsaeaceae), Another Confirmed Example of Deep Hybridization Among the Ferns
复制标题
×Lindsaeosoria Flynnii（Lindsaeaceae），蕨类植物深度杂交的另一个证实的例子
作者：
S. Lehtonen
本文通过质体数据的分子分析和低拷贝叶核基因的Illumina高通量测序，证实了×Lindsaeosoria flynnii的起源是linsaea ensifolia和Odontosoria chinensis的属间杂种。质体DNA将该杂交种与linsaea ensifolia归在一起，表明它是母系祖先，而不同的LEAFY等位基因的存在证实了杂交种的起源。与×Cystocarpium一起，这证实了在新生代早期或中生代晚期分离的蕨类谱系之间的深度杂交事件。
Abstract The origin of ×Lindsaeosoria flynnii as an intergeneric hybrid between Lindsaea ensifolia and Odontosoria chinensis is here confirmed by molecular analysis of plastid data and Illumina high-throughput sequencing of the low-copy nuclear LEAFY gene. Plastid DNA grouped the hybrid together with Lindsaea ensifolia, suggesting that it is the maternal progenitor, while the presence of distinct LEAFY alleles confirmed the hybrid origin. Together with ×Cystocarpium this is confirmed example of deep hybridization event between fern lineages that were separated in the early Cenozoic or late Mesozoic.