Draft genome of the Symbiodiniaceae Durusdinium trenchii. Durusdinium trenchii

Photosynthetic dinoflagellates, Symbiodiniaceae, live together with many marine organisms of coral reefs and are currently classified into fifteen groups. Draft genomes from four genera, Symbiodinium, Breviolum, Fugacium, and Cladocopium, that have been detected in corals, have been reported. However, genomes of Durusdinium that are well known for thermal tolerance (found in corals resistant to bleaching phenomena) are not accessible. To explore the genetic background of the coral symbiont, Durusdinium, here, we sequence, assemble, and annotate the genome of Durusdinium trenchii from the coral Favia speciosa in Okinawa, Japan. This work will provide a significant genomic resource for understanding the genomic diversity of Symbiodiniaceae in corals.

光合自养甲藻虫黄藻科（Symbiodiniaceae）与诸多珊瑚礁海洋生物共生，目前该类群被划分为15个类群。已有研究报道了在珊瑚中检出的4个属——虫黄藻属（Symbiodinium）、短膜虫黄藻属（Breviolum）、Fugacium属、枝孔藻属（Cladocopium）的基因组草图。然而，以耐热性著称（多见于抗白化珊瑚）的硬壳虫黄藻属（Durusdinium）的基因组数据仍未获取。为解析珊瑚共生体硬壳虫黄藻属（Durusdinium）的遗传背景，本研究对采自日本冲绳海域华丽蜂巢珊瑚（Favia speciosa）体内的特伦奇硬壳虫黄藻（Durusdinium trenchii）的基因组进行了测序、组装与注释。本研究将为解析珊瑚体内虫黄藻科（Symbiodiniaceae）的基因组多样性提供重要的基因组学资源。