国产青榴社区91精品,久久成人精品免费播放,久久精品人人做人人试看

Home> Market activity > Achievements > article shows > article details

Molecular characterization of eukaryotic algal communities in the tropical phyllosphere based on real-time sequencing of the 18S rDNA gene

2019-05-17

cover.jpg


Abstract


Backgroud: Foliicolous algae are a common occurrence in tropical forests. They are referable to a few simple morphotypes (unicellular, sarcinoid-like or filamentous), which makes their morphology of limited usefulness for taxonomic studies and species diversity assessments. The relationship between algal community and their hostphyllosphere was not clear. In order to obtain a more accurate assessment, we used single molecule real-time sequencing of the 18S rDNA gene to characterize the eukaryotic algal community in an area of South-western China.


Result


We annotated 2922 OTUs belonging to five classes, Ulvophyceae, Trebouxiophyceae, Chlorophyceae,Dinophyceae and Eustigmatophyceae. Novel clades formed by large numbers sequences of green algae were detected in the order Trentepohliales (Ulvophyceae) and the Watanabea clade (Trebouxiophyceae), suggesting that these foliicolous communities may be substantially more diverse than so far appreciated and require further research. Species in Trentepohliales, Watanabea clade and Apatococcus clade were detected as the core members in the phyllosphere community studied. Communities from different host trees and sampling sites were not

significantly different in terms of OTUs composition. However, the communities of Musa and Ravenala differed from other host plants significantly at the genus level, since they were dominated by Trebouxiophycean epiphytes. Conclusion: The cryptic diversity of eukaryotic algae especially Chlorophytes in tropical phyllosphere is very high.The community structure at species-level has no significant relationship either with host phyllosphere or locations.The core algal community in tropical phyllopshere is consisted of members from Trentepohliales, Watanabea clade and Apatococcus clade. Our study provided a large amount of novel 18S rDNAsequences that will be useful to unravel the cryptic diversity of phyllosphere eukaryotic algae and for comparisons with similar future studies on this

type of communities.


Keywords


Aerial algae, Community structure, Diversity, Phyllosphere, Phylogeny, SMRT sequencing, Tropical forest

主站蜘蛛池模板: 巴马| 宣化县| 土默特右旗| 休宁县| 横峰县| 鹤庆县| 山西省| 河池市| 和林格尔县| 浦县| 乐都县| 长岭县| 南开区| 平泉县| 玉田县| 土默特右旗| 滨州市| 连城县| 德州市| 鄂伦春自治旗| 拉萨市| 漯河市| 南澳县| 巴彦县| 丰宁| 佛山市| 泉州市| 日照市| 雅安市| 亳州市| 千阳县| 克东县| 白银市| 临桂县| 运城市| 顺义区| 邮箱| 区。| 汤阴县| 通辽市| 绵阳市|