Insight of phylogeny and the number of sporangium annulus cells in Coniogramme ser. Coniogramme
Insight of phylogeny and the number of sporangium annulus cells in Coniogramme ser. Coniogramme
复制标题
Coniogramme 系列中系统发育和孢子囊环细胞数量的见解。
DOI：
10.11646/phytotaxa.456.2.4
复制
发表时间：
2020
期刊：
影响因子：
1.1
通讯作者：
Zhang Gang-Min
中科院分区：
文献类型：
--
作者：
Wang Cai-Hong;Yang Wen-Li;Zhang Dan-Ke;Zhang Gang-Min
凤丫蕨（Coniogramme ser. Coniogramme）是蕨类植物蕨科（Pteridaceae）隐蕨亚科（Cryptogrammoideae）的多年生草本蕨类植物。利用5个叶绿体标记（matK/psbA-trnH/rbcL/rps4-trnS/trnL-F）进行系统发育重建。对8种植物的孢子囊环带细胞数进行了计数和统计分析。结果表明，本定义的C.凤丫蕨不是一个单系群。凤丫蕨（Coniogramme merrillii）的环带细胞数最多（中位数为18个），是该属其他种的姊妹种，其孢子囊环带细胞数在种水平上稳定，具有重要的系统发育意义。将C. merrillii，C. petelotii和C.在C. fraxaline。C. merrillii应作为C. macrophylla，而C. Lanceolata被认为是一个独立的物种。
Coniogramme ser. Coniogramme is a perennial herbaceous fern group of the subfamily Cryptogrammoideae in Pteridaceae. The phylogenetic reconstruction of this series was performed using five chloroplast markers (matK/psbA-trnH/rbcL/rps4-trnS/trnL-F). The sporangium annulus cell numbers of eight species have also been counted and statistically assessed. The results showed that the present defined C. ser. Coniogramme is not a monophyletic group. Coniogramme merrillii, which has the highest number of annulus cells (median 18), is sister to the other species of this genus, and the number of sporangium annulus cells is stable at the species level and of great phylogenetic significance. It is not supported by both molecular and morphological evidence to synonymize C. merrillii, C. petelotii and C. gigantea in C. fraxinea. C. merrillii should be treated as a synonym of C. macrophylla, while C. lanceolata be accepted as a distinct species.