水生生物学报2016，Vol.40Issue(6)：1249-1256,8.DOI:10.7541/2016.163
帚状蜈蚣藻的修订研究--基于形态观察和rbcL序列分析
RESEARCH ON THE REVISION OFGRATELOUPIA FASTIGIATA LI ET DING (RHODOPHYTA, HALYMENIACEAE) BASED ON MORPHOLOGICAL OBSERVATIONS ANDRBCL SEQUENCE ANALYSES
摘要
Abstract
By combining morphological observation with molecular analysis,Grateloupia fastigiata Li et Ding was re-examined. The results showed that:① thallus was dark purplish red, 9—26 cm high, percurrent axes terete basally, di-chotomously branched once or twice, cortex sections were 85—160 m thick consisting of 8—11 layers of cells; the auxi-liary cell ampullae exhibited typicalGrateloupia-type, carpogonial branch ampullae consisted of six cells, auxiliary cell ampullae consisted of five cells (6cpb—5auxb type), identical withG. asiatica Kawaguchi et Wang.② According to the phylogenetic tree constructed by gene (rbcL) sequences, there was no sequence divergence between the ten samples ofG. fastigiata examined in this research andG. asiatica from Qingdao, which formed a single monophyletic subclade within the largeGrateloupia clade of Halymeniaceae, therbcL sequences differences between it andG. asiatica from Dalian was 1 bp (0.08%), therbcL sequences differences between it andG. asiatica from Japan and South Korea was 2 bp (0.16%) and 3 bp (0.24%), belonging to intraspecific difference, therbcL sequences differences between it and oth-er species within theGrateloupia clade I was 18 (1.47%)—76 bp (6.19%), belonging to interspecific difference. Through morphological observations and molecular analysis,G. fastigiata andG. asiatica proved to be the same spe-cies, withG. fastigiata as the synonym ofG. asiatica.关键词
红藻门/海膜科/帚状蜈蚣藻/形态观察/rbcLKey words
Rhodophyta/Halymeniaceae/Grateloupia fastigiata/Morphological/rbcL分类
农业科技引用本文复制引用
李芳,姜朋,赵树雨,王宏伟..帚状蜈蚣藻的修订研究--基于形态观察和rbcL序列分析[J].水生生物学报,2016,40(6):1249-1256,8.基金项目
国家自然科学基金项目(31270251、30870161、31570209)资助@@@@Supported by the National Natural Science Foundation of China (31270251,30870161,31570209) （31270251、30870161、31570209）
