东篱科研大数据发现系统（DRDS）

位置：成果数据库 > 期刊 > 期刊详情页

北部湾大型海藻资源研究及应用展望

ISSN号：1005-9164
期刊名称：《广西科学》
时间：0
分类：Q7[生物学—分子生物学] Q959.117[生物学—动物学]
作者机构：[1]Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, Tianjin 300387, China, [2]Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China, [3]Graduate University of Chinese Academy of Sciences, Beijing 100049, China, [4]Marine Biology Institute, Shantou University, Shantou 515063, China
相关基金：The National Key Technology R＆D Program of China under contract No.2012BAC07B05; the National Natural Science Foundation of China under contract Nos 31400186,31270257 and 31093440; the Science and Technology Plan Project of Guangdong Province under contract No.2012A020200007; the Science and Technology Plan Project of Shantou City,China under contract No.2012–171

关键词：分子水平, 形态学, 亚麻, 海藻, 纤维直径, 平均长度, 细胞壁, 生物学分析, Chaetomorpha aerea Chaetomorpha linum molecular identification morphology comparison 18S rRNA ITS

中文摘要：

格林 macroalgae Chaetomorpha aerea 和 C。linum 分类地被糊涂。在这份报纸，我们试试词法、分子的分析分开这二种。C。aerea 和 C。linum 能与词法 characteritics 被区分开来，例如复叶尺寸，房间尺寸和形状，他们的吝啬的长度 / 宽度比率(LWR ) ，和房间围收缩。C 的 Thalli。aerea 由顶往底地稀释与在上面的部分的直径 270-500 m，在中间的部分的 160-360 m，在基础部分的 100-160 m。为上面的部分，房间的长度是不到他们的直径。房间墙通常在隔膜压缩，它透明或无色并且给细丝 beaded 外观。相反， C 的 thalli。linum 经常在一样的个人，以内有 90-300 m 的一条经常的直径房间墙通常不压缩，房间是圆柱的或塑造的桶。LWR 比 C 的大。aerea。结果证明在二种之间的 pairwise 距离为它的区域是为 18S rRNA 基因和 53.5%-54.3% 的 3.6%-3.7% 。在发展史，他们在远 clades 散布，它在分子的水平证实基因分叉。另外，词法数据显示 C 的那条细丝直径。linum 样品是高度可变的，从 90 m 到 300 m。然后这二种能被看作分开种类。

英文摘要：

Green macroalgae Chaetomorpha aerea and C. linum are taxonomically confused. In this paper, we tried morphological and molecular analyses to separate these two species. C. aerea and C. linum can be distinguished from morphological characteritics, such as frond dimension, cells size and shape, their mean length/width ratios（LWR）, and cell walls constriction. Thalli of C. aerea attenuate basipetally, with diameter 270–500 μm at upper portion, 160–360 μm at middle portion, 100–160 μm at basal portion. For the upper part, the length of cells is less than their diameter. Cell walls usually constrict at the dissepiments, which are pellucid or colorless and give the filament beaded appearance. In contrast, thalli of C. linum often have a constant diameter of 90–300 μm within the same individual, cell walls usually do not constrict and cells are cylindrical or barrel shaped. The LWR is larger than that of C. aerea. Results show that the pairwise distance between two species is 3.6%–3.7% for 18 S r RNA gene and 53.5%–54.3% for ITS region. In phylogeny, they distribute at distant clades, which confirms a genetic divergence at molecular level. In addition, morphological data indicates that filament diameter of C. linum samples is highly variable, ranging from 90 μm to 300 μm. Then these two species can be considered as separate species.

同期刊论文项目