Complete chloroplast genome of<i>Isoetes sinensis</i>, an endemic fern in China

Xie, YaCong; Cheng, Huishan; Chen, Yu; Liu, Zhong‐Jian; Lin, Shan-Hsiung

doi:10.1080/23802359.2019.1666687

Cited by 3 publications

(3 citation statements)

References 9 publications

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“… 2018 ), isoetes taiwanensis MF149843.1, Isoetes sinensis MN172503.1 (Xie et al. 2019 ), Isoetes orientalis OL467336.1 (Li et al. 2023 ), Isoetes yunguiensis MK047605.1 (Feng et al.…”

Section: Resultsmentioning

confidence: 99%

The complete chloroplast genome sequence of Isoetes baodongii (Isoetaceae)

Guo,

Zhai,

2024

Mitochondrial DNA Part B

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Isoetes baodongii is a diploid species of Isoetaceae distributed in low altitude area, its megaspore ornamentation is similar to tetraploid species I. sinensis . We collected leaf material of I. baodongii and sequenced it for low depth whole genome sequence, then, a complete chloroplast genome of I. baodongii was assembled and annotated. This chloroplast genome has a circular structure of 145,494 bp in length with a GC content of 38.0%, comprising a large single copy (LSC) region of 91,860 bp, a pair of inverted repeat (IR) regions of 13,207 bp each, and a small single copy (SSC) region of 27,220 bp. 136 genes were annotated, including 84 protein-coding genes, 38 tRNA genes, and 8 rRNA genes. A maximum likelihood phylogeny tree was reconstructed after the sequences alignment, the result showed that I. baodongii formed a sister clade to the one clustered by I. sinensis , I. taiwanensis and I. orientalis . Although the chloroplast genome structure of I. baodongii is extremely similar to other species distributed in China, a well-supported phylogenetic relationship was reconstructed here, these results may provide new messages for further studies on phylogeny and evolution of vascular plant on the earth.

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“… 2018 ), isoetes taiwanensis MF149843.1, Isoetes sinensis MN172503.1 (Xie et al. 2019 ), Isoetes orientalis OL467336.1 (Li et al. 2023 ), Isoetes yunguiensis MK047605.1 (Feng et al.…”

Section: Resultsmentioning

confidence: 99%

The complete chloroplast genome sequence of Isoetes baodongii (Isoetaceae)

Guo,

Zhai,

2024

Mitochondrial DNA Part B

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“…5 ). The chloroplast genome sample of I. sinensis was acquired from Fuzhou City (119°23′89.30″E, 26°08′76.41″N), Fujian Province of China [ 36 ]. We assume that I. taiwanensis is the maternal progenitor for this population of I. sinensis .…”

Section: Discussionmentioning

confidence: 99%

“…I. coreana originates from the diploid I. taiwanensis and the tetraploid Isoetes hallasanensis, while I. japonica comes from I. taiwanensis and I. sinensis [35]. [36]. We assume that I. taiwanensis is the maternal progenitor for this population of I. sinensis.…”

Section: Hybridization and Polyploidization Complicate The Speciationmentioning

confidence: 99%

The speciation and adaptation of the polyploids: a case study of the Chinese Isoetes L. diploid-polyploid complex

Dai

Huang

et al. 2020

BMC Evol Biol

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Background The Chinese Isoetes L. are distributed in a stairway pattern: diploids in the high altitude and polyploids in the low altitude. The allopolyploid I. sinensis and its diploid parents I. yunguiensis and I. taiwanensis is an ideal system with which to investigate the relationships between polyploid speciation and the ecological niches preferences. Results There were two major clades in the nuclear phylogenetic tree, all of the populations of polyploid were simultaneously located in both clades. The chloroplast phylogenetic tree included two clades with different populations of the polyploid clustered with the diploids separately: I. yunguiensis with partial populations of the I. sinensis and I. taiwanensis with the rest populations of the I. sinensis. The crow node of the I. sinensis allopolyploid system was 4.43 Ma (95% HPD: 2.77–6.97 Ma). The divergence time between I. sinensis and I. taiwanensis was estimated to 0.65 Ma (95% HPD: 0.26–1.91 Ma). The narrower niche breadth in I.sinensis than those of its diploid progenitors and less niche overlap in the pairwise comparisons between the polyploid and its progenitors. Conclusions Our results elucidate that I. yunguinensis and I. taiwanensis contribute to the speciation of I. sinensis, the diploid parents are the female parents of different populations. The change of altitude might have played an important role in allopolyploid speciation and the pattern of distribution of I. sinensis. Additionally, niche novelty of the allopolyploid population of I. sinensis has been detected, in accordance with the hypothesis that niche shift between the polyploids and its diploid progenitors is important for the establishment and persistence of the polyploids.

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Insights into cryptic speciation of quillworts in China

Shu²,

et al. 2023

Plant Diversity

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Complete chloroplast genome ofIsoetes sinensis, an endemic fern in China

Cited by 3 publications

References 9 publications

The complete chloroplast genome sequence of Isoetes baodongii (Isoetaceae)

The complete chloroplast genome sequence of Isoetes baodongii (Isoetaceae)

The speciation and adaptation of the polyploids: a case study of the Chinese Isoetes L. diploid-polyploid complex

Insights into cryptic speciation of quillworts in China

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