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FAFU Took the Lead in Publishing Two High-quality Reference Genomes of Jute and Identifying Key Genetic Loci of Fiber Quality

福建农林大学(英文版)   发布时间: 2021-07-15   信息员:

On June 25th, 2021, Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops of FAFU, in collaboration with Center for Genomics and Biotechnology, Haixia Institute of Science and Technology, published an online research paper entitled “Reference genomes of the two cultivated jute species” in the famous international biotechnology journal Plant Biotechnology Journal ( https:// doi.org/10.1111/pbi.13652). The research is the first to publish high-quality reference genomes of two cultivated jute species.

In this study, the whole genome of jute was sequenced and assembled at the chromosomal level for the first time by using check varieties Corchorus capularis “Huangma 179” (HM179) and C. olitorius var “Kuanyechangguo” (KYCG) as the materials for the regional trial of jute, combined with the second- and third-generation sequencing strategy and Hi-C chromosome conformation capture technology. The genome size of the C. capsularis and C. olitorius consisted of 336 Mb with 25,874 protein-coding genes and 361 Mb with 28 479 protein-coding genes respectively. And the resulting contig-level assemblies contained an N50 of 46 Mb and 50Mb for the C. capsularis and C. olitorius respectively (Figure 1).

Figure 1

In order to better understand the origin and domestication of jute, the researchers resequenced 300 diverse jute accessions all over the world (including 242 cultivated C. capsularis, 57 cultivated C. olitorius accessions, and one wild Corchorus aestuans).

Genome-wide association studies (GWAS) has identified hundreds of important loci controlling fibre quality-related traits including fibre fineness, cellulose content and lignin content (Figure 2).

Figure 2

Since 1948, Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops of FAFU has been conducting research on genetic breeding and comprehensive utilization of hemp crops for more than 70 years, with jute and kenaf as the main research objects. This publication is following the publication of the paper entitled “The genome of kenaf (Hibiscus cannabinus L.) provides insights into bast fibre and leaf shape biogenesis” in PBJ on January 23, 2020 (https://doi.org/10.1111/pbi.13341).

Lilan Zhang and Yi Xu, PhD students from Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, and Xiaokai Ma and Xingtan Zhang from Center for Genomics and Biotechnology are the co-first authors of this paper. Professors Liwu Zhang, Jianmin Qi and Ray Ming are the co-supervisors of this paper, with Professor Liwu Zhang as corresponding author. The work has been supported by the National Natural Science Foundation of China (31771369 and 31972968) and the Special Project for the Construction of the National Modern Agricultural Industrial Technology System (CARS-19-E06).

Link to the article: https://onlinelibrary.wiley.com/doi/abs/10.1111/pbi.13652


Correspondant/Photogragher: Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops of FAFU  Zhang Liwu

Translation: Wang Xian, International College

Chen Xuemin, International College


 
 
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