Complete chloroplast genome of Firmiana major (Malvaceae), a critically endangered species endemic to southwest China
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TECHNICAL NOTE
Complete chloroplast genome of Firmiana major (Malvaceae), a critically endangered species endemic to southwest China Ji‑Dong Ya1 · Zhi‑Xiang Yu2 · Yan‑Qiong Yang2 · Shu‑Dong Zhang1 · Zhi‑Rong Zhang1 · Jie Cai1 · Jun‑Bo Yang1 · Wen‑Bin Yu3,4
Received: 11 October 2017 / Accepted: 13 October 2017 © Springer Science+Business Media B.V. 2017
Abstract Firmiana major is an endangered species in southwest China, which had been considered as extinct in the wild on the IUCN Red List of Threatened Species in 1998. Fortunately, around 2000 wild individuals were rediscovered along the valley of Jinshajiang river in south Sichuan and north Yunnan. In this study, we reported a complete chloroplast genome of F. major, which was de novo assembled using the next-generation sequencing data. The plastome was 161,302 bp in length, consisting of a pair of inverted repeat (25,543 bp for each), one large single copy (90,178 bp) and one small single copy (20,038 bp) regions. The whole genome contained 132 genes, including 87 protein-coding, 37 tRNA and 8 rRNA genes. The overall GC content of the whole genome was 36.9%. Maximum likelihood analysis showed that F. major was sister to Tilia spp. Keywords Firmiana major · Plastid genome · Malvaceae · IUCN · Endangered species Firmiana major (W. W. Smith) Handel-Mazzetti (Malvaceae) is a rare woody species endemic to Yunnan and south * Wen‑Bin Yu [email protected] 1
Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China
2
National Nature Reserve of Panzhihua Cycad in Sichuan Province, Panzhihua 617000, Sichuan, China
3
Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Mengla 666303, Yunnan, China
4
Southeast Asia Biodiversity Research Institute, Chinese Academy of Science, Yezin, Nay Pyi Taw 05282, Myanmar
Sichuan (Hsue 1984; Tang et al. 2007). F. major was classified as the second-class national protected plants on the “list of rare and endangered plants in China” (State Environmental Protection Administration and Institute of Botany 1987). Subsequently, the “China Plant Red Data Book: Rare and Endangered Plants” recorded that the wild plants of F. major was hard to be found in the wild, or might be extinct due to natural vegetation has been heavily damaged in central Yunnan (Fu and Chin 1992). Furthermore, F. major was considered as extinction in the wild on the “IUCN Red List of Threatened Species” (Sun 1998). Fortunately, around 400 wild individuals of F. major were rediscovered in the National Nature Reserve of Panzhihua Cycad (Wang 2001). In 2017, > 2000 wild individuals of F. major had been found in Ninglang (ca. 1000 individuals), Yulong (ca. 1000 individuals), and Yuanmou (11 individuals) in central and northwest Yunnan (http://lijiang.yunnan.cn/html/201708/25/content_4920733.htm). In the present paper, we report a complete chloroplast genome of F. major. The plastid genome will contribute to develop protection measures for this endangered species. A fr
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