Shearman Jeremy R, Naktang Chaiwat, Sonthirod Chutima, Kongkachana Wasitthee, U-Thoomporn Sonicha, Jomchai Nukoon, Maknual Chatree, Yamprasai Suchart, Promchoo Waratthaya, Ruang-Areerate Panthita, Pootakham Wirulda, Tangphatsornruang Sithichoke
National Omics Center, National Science and Technology Development Agency, 111 Thailand Science Park, Paholyothin Road, Khlong Nueng, Khlong Luang, Pathumthani 12120, Thailand.
Department of Marine and Coastal Resources, 120 The Government Complex, Chaengwatthana Rd., Thung Song Hong, Bangkok 10210, Thailand.
Genomics. 2022 May;114(3):110382. doi: 10.1016/j.ygeno.2022.110382. Epub 2022 May 6.
Mangroves are plants that live in tropical and subtropical coastal regions of the world, they are adapted to high salt environments and cyclic tidal flooding. Mangroves play important ecological roles, including acting as breeding grounds for many fish species and to prevent coastal erosion. The genomes of three mangrove species, Bruguiera gymnorhiza, Bruguiera cylindrica, and a hybrid of the two, Bruguiera hainesii were sequenced, assembled and annotated. The two progenitor species, B. gymnorhiza and B. cylindrica, were found to be highly similar to each other and sufficiently similar to B. parviflora to allow it to be used for reference based scaffolding to generate chromosome level scaffolds. The two subgenomes of B. hainesii were independently assembled and scaffolded. Analysis of B. hainesii confirms that it is a hybrid and the hybridisation event was estimated at 2.4 to 3.5 million years ago using a Bayesian Relaxed Molecular Clock approach.
红树林是生长在世界热带和亚热带沿海地区的植物，它们适应高盐环境和周期性潮汐淹没。红树林发挥着重要的生态作用，包括作为许多鱼类的繁殖地以及防止海岸侵蚀。对三种红树植物——木榄、柱果木榄以及二者的杂交种海氏木榄的基因组进行了测序、组装和注释。发现两个亲本物种木榄和柱果木榄彼此高度相似，并且与小花木榄足够相似，从而可以将其用于基于参考的支架构建以生成染色体水平的支架。海氏木榄的两个亚基因组被独立组装和构建支架。对海氏木榄的分析证实它是一个杂交种，并且使用贝叶斯松弛分子钟方法估计杂交事件发生在240万至350万年前。
