Phylogenetic Analysis of Aspidistra Inferred from Sequences of RLCKVⅡ Gene
Aspidistra Ker-Gawl.(Asparagaceae,subfamily Nolinoideae),with high species diversity,is one of the biggest genera in monocotyledon.However,phylogenetic relationships among species in Aspidistra remain unknown,due to little molecular sequence analysis.In this study,molecular phylogeny of Aspidistra was conducted based on the sequence variations of nuclear DNA RLCKVⅡ for 20 representative species of Aspidistra.The results showed that the molecular phylogenetic relationships among Aspidistra species were not consistent well with the infrageneric classification based on the morphological characters.The complexity of parallel phylogenetic relationships indicates that Aspidistra might have experienced frequent episodes of interspecific hybridization at its initial stages of diversification.The RLCKVⅡ gene can be used for species identification in the families Poaceae,Palmae and Asparagaceae,suggesting that RLCKVⅡ is a useful candidate gene for phylogenetic analysis of monocotyledon.
NETL
NSTL
万方数据
维普
