Morphology, molecular phylogeny and taxonomy of Gonium maiaprilis sp nov (Goniaceae, Chlorophyta) from Japan
Morphology, molecular phylogeny and taxonomy of Gonium maiaprilis sp nov (Goniaceae, Chlorophyta) from Japan
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DOI：
10.2216/ph09-56.1
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发表时间：
2010-05-01
期刊：
影响因子：
1.6
通讯作者：
Nozaki, Hisayoshi
中科院分区：
文献类型：
--
作者：
Hayama, Mahoko;Nakada, Takashi;Nozaki, Hisayoshi
谷草等人的形态、分子系统发育及分类。利用原产于日本福冈县的克隆培养材料对绿藻进行了研究。本种与G. pecterale O. F. Muller和G. viridistellatum M. Watanabe相似，在8或16细胞营养菌落的叶绿体中有1至3个稳定的pyrenoids。然而，它与G. pectorale和G. viridiellatum的区别在于8细胞集落的细胞排列，而与G. pectorale的区别在于无合子的形态。瓢虫的有性繁殖是异thallic和同配型的，萌发的受精卵产生一个四细胞的生殖群体。基于Rubisco基因的质体大亚基和核糖体DNA （rDNA）内部转录间隔区（ITS- i、5.8S rDNA和ITS-2）序列的系统发育分析表明，该属植物与其它属属植物是分离的。
The morphology, molecular phylogeny and taxonomy of Gallium maiaprilis Hayama et al. sp. nov. (Goniaceae. Chlorophyta) were studied using clonal cultured material originating from Fukuoka Prefecture, Japan. This species is similar to G. pecterale O. F. Muller and G. viridistellatum M. Watanabe in having one to three stable pyrenoids in the chloroplasts of eight- or 16-celled vegetative colonies. However, it is distinguished from G. pectorale and G. viridistellatum by the cell arrangement of the eight-celled colonies and from G. pectorale by aplanozygote morphology. Sexual reproduction of G. maiaprilis is heterothallic and isogamous, and the germinating zygote gives rise to a four-cell germ colony. Phylogenetic analyses based on the plastid large subunit of Rubisco genes and sequences for the internal transcribed spacer (ITS) regions of nuclear ribosomal DNA (rDNA) (ITS-I, 5.8S rDNA and ITS-2) suggest that G. maiaprilis is separate from other species of Gonium.