Saccharina Genomes Provide Novel Insight into Kelp Biology

Overview

Journal Nat Commun

Specialty Biology

Date 2015 Apr 25

PMID 25908475

Citations 89

Authors

Naihao Ye

Xiaowen Zhang

Miao Miao

Xiao Fan

Yi Zheng

Dong Xu

Jinfeng Wang

Lin Zhou

Dongsheng Wang

Yuan Gao

Yitao Wang

Wenyu Shi

Peifeng Ji

Demao Li

Zheng Guan

Changwei Shao

Zhimeng Zhuang

Zhengquan Gao

Ji Qi

Fangqing Zhao

Affiliations

Soon will be listed here.

Abstract

Seaweeds are essential for marine ecosystems and have immense economic value. Here we present a comprehensive analysis of the draft genome of Saccharina japonica, one of the most economically important seaweeds. The 537-Mb assembled genomic sequence covered 98.5% of the estimated genome, and 18,733 protein-coding genes are predicted and annotated. Gene families related to cell wall synthesis, halogen concentration, development and defence systems were expanded. Functional diversification of the mannuronan C-5-epimerase and haloperoxidase gene families provides insight into the evolutionary adaptation of polysaccharide biosynthesis and iodine antioxidation. Additional sequencing of seven cultivars and nine wild individuals reveal that the genetic diversity within wild populations is greater than among cultivars. All of the cultivars are descendants of a wild S. japonica accession showing limited admixture with S. longissima. This study represents an important advance toward improving yields and economic traits in Saccharina and provides an invaluable resource for plant genome studies.

Citing Articles

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