Comparing Complete Mitochondrion Genome of Bloom-forming Macroalgae from the Southern Yellow Sea, China

Jing Xia,Yuqing Sun,Peimin He,Yutao Qin,Haofei Zhang,Shuang Zhao,Jianheng Zhang,Jinlin Liu,Lihua Xia,Yichao Tong,Wei Liu,L Zhang,W Chu,S Defilla

doi:10.1051/e3sconf/202123302037

Abstract

The green tide in the Southern Yellow Sea which has been erupting continuously for 14 years. Dominant species of the free-floating Ulva in the early stage of macroalgae bloom were Ulva compressa, Ulva flexuosa, Ulva prolifera, and Ulva linza along the coast of Jiangsu Province. In the present study, we carried out comparative studies on complete mitochondrion genomes of four kinds of bloom-forming green algae, and provided standard morphological characteristic pictures of these Ulva species. The maximum likelihood phylogenetic analysis showed that U. linza is the closest sister species of U. prolifera. This study will be helpful in studying the genetic diversity and identification of Ulva species.

Highlights

Green tides, which occur widely in many coastal areas, are caused primarily by flotation, accumulation, and excessive proliferation of green macroalgae, especially the members of the genus Ulva [1,2,3]
Mitochondrion genome of U. flexuosa (NC035809; KX455878) [20], U. linza (NC029701; KU189740) [21], U. compressa (KX595276), and U. prolifera (KU161104) were conducted [22]. We downloaded these sequences from US National Center for Biotechnology Information (NCBI: www.ncbi.nlm.nih.gov/) (Table 1)
The attached Ulva species consisted of four species which were U. compressa, U. linza, U. flexuosa and U. prolifera

Summary

Introduction

Green tides, which occur widely in many coastal areas, are caused primarily by flotation, accumulation, and excessive proliferation of green macroalgae, especially the members of the genus Ulva [1,2,3]. China has the high frequency outbreak of the green tide [4,5,6,7,8,9,10]. The world's largest green tide events, have occurred annually from 2007 to 2020 along the coast of the Yellow Sea, China, seriously affecting marine environments and ecological services functions [11,12,13,14,15]. It was meaningful to carry out comparative studies on organelle genomes of these bloom-forming green algae

The specimen and data preparation

Result and discussion

Conclusion

Data availability statement