Complete chloroplast genome of <i>Ulva prolifera</i>, the dominant species of green macroalgal blooms in Yellow Sea, China

Jiang, Ting; Gu, Kai; Wang, Lingke; Li, Qiao; Shi, Jinting; Liu, Mengmeng; Tang, Chunyu; Su, Yongzheng; Zhong, Shengcai; Cai, Chuner; He, Peimin

doi:10.1080/23802359.2019.1610090

Cited by 6 publications

(6 citation statements)

References 8 publications

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“…Horizontal bars represented the size of the Ulva cpDNAs. Cai et al, 2017;Wang et al, 2017;Suzuki et al, 2018;Jiang et al, 2019;Fort et al, 2020). The variation in genome size of U. compressa cpDNAs at intraspecific level was mainly caused by differences in gain or loss of group I/II introns, integration of foreign DNA fragments, and content of noncoding intergenic spacer regions (Figure 1), which was similar to that observed in Ulva mitochondrial genomes (Liu F. et al, 2020).…”

Section: Features and Architecture Of U Compressa Chloroplast Genomessupporting

confidence: 56%

Chloroplast Genomes of the Green-Tide Forming Alga Ulva compressa: Comparative Chloroplast Genomics in the Genus Ulva (Ulvophyceae, Chlorophyta)

Liu

Melton

2021

Front. Mar. Sci.

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To understand the evolution of Ulva chloroplast genomes at intraspecific and interspecific levels, in this study, three complete chloroplast genomes of Ulva compressa Linnaeus were sequenced and compared with the available Ulva cpDNA data. Our comparative analyses unveiled many noticeable findings. First, genome size variations of Ulva cpDNAs at intraspecific and interspecific levels were mainly caused by differences in gain or loss of group I/II introns, integration of foreign DNA fragments, and content of non-coding intergenic spacer regions. Second, chloroplast genomes of U. compressa shared the same 100 conserved genes as other Ulva cpDNA, whereas Ulva flexuosa appears to be the only Ulva species with the minD gene retained in its cpDNA. Third, five types of group I introns, most of which carry a LAGLIDADG or GIY-YIG homing endonuclease, and three of group II introns, usually encoding a reverse transcriptase/maturase, were detected at 26 insertion sites of 14 host genes in the 23 Ulva chloroplast genomes, and many intron insertion-sites have been found for the first time in Chlorophyta. Fourth, one degenerate group II intron previously ignored has been detected in the infA genes of all Ulva species, but not in the closest neighbor, Pseudoneochloris marina, and the other chlorophycean taxa, indicating that it should be the result of an independent invasion event that occurred in a common ancestor of Ulva species. Finally, the seven U. compressa cpDNAs represented a novel gene order which was different from that of other Ulva cpDNAs. The structure of Ulva chloroplast genomes is not conserved, but remarkably plastic, due to multiple rearrangement events.

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Section: Features and Architecture Of U Compressa Chloroplast Genomessupporting

confidence: 56%

Chloroplast Genomes of the Green-Tide Forming Alga Ulva compressa: Comparative Chloroplast Genomics in the Genus Ulva (Ulvophyceae, Chlorophyta)

Liu

Melton

2021

Front. Mar. Sci.

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“… 2017 ), Ulva prolifera (KX342867) (Jiang et al. 2019 ) and Ulva linza (KX058323) (Wang et al. 2017 ) had been studied by our laboratory before.…”

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confidence: 99%

Characterization of complete chloroplast genome of Ulva torta (Mertens) Trevisan, 1841

Wen

Yang

et al. 2022

Mitochondrial DNA Part B

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Ulva torta (Mertens) Trevisan, 1841 was a global temperate widespread species. Green tide blooms caused by the green algae of the Ulva species occurred frequently in China. As a newly discovered species in the green tide bloom area, it was necessary to explore the relationship between U. torta and other green algae of the Ulva species. The complete chloroplast genome of U. torta was 105,423 bp in size. A total of 100 genes were annotated in the genome, containing 70 protein-coding genes, 27 transfer RNA (tRNA) genes, and three rRNA genes. The chloroplast genome had high AT content (74.76%). Phylogenetic analysis showed U. torta was clustered with Ulva meridionalis . This work could be useful for studying the evolution and genetic diversity of U. torta .

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“…Our laboratory had studied the chloroplast genome of U. flexuosa (NC035823) (Cai et al 2017), U. linza (KX058323) (Wang et al 2017) and U. prolifera (KX342867) (Jiang et al 2019) before. In order to study the chloroplast genome of U. compressa, we collected U. compressa from the estuary of Nantong, China (32 49 0 42 00 N, 121 19 0 05 00 E).…”

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Complete chloroplast genome of Ulva compressa (Ulvales: Ulvaceae)

Xia

Qin

Liu

et al. 2021

Mitochondrial DNA Part B

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Ulva compressa is one of the causal green macroalgae in many countries. In this study, complete chloroplast genome sequence of U. compressa was reported, and the total length of this species was 94,226 bp (GenBank accession number MT916929). The overall base composition of chloroplast genome was A (37.2%), T (37.0%), C (12.7%) and G (13.1%), and the percentage of A þ T (74.2%) was higher than C þ G (25.8%). U. compressa chloroplast genome encoded 90 genes, including 63 protein-coding genes, 23 transfer RNAs genes, and 4 ribosomal RNAs genes. The maximum likelihood phylogenetic analysis showed that U. compressa is the closest sister species of U. linza. This study will be helpful to understand the genetic diversity of Ulva species.

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Complete chloroplast genome of Ulva prolifera, the dominant species of green macroalgal blooms in Yellow Sea, China

Cited by 6 publications

References 8 publications

Chloroplast Genomes of the Green-Tide Forming Alga Ulva compressa: Comparative Chloroplast Genomics in the Genus Ulva (Ulvophyceae, Chlorophyta)

Chloroplast Genomes of the Green-Tide Forming Alga Ulva compressa: Comparative Chloroplast Genomics in the Genus Ulva (Ulvophyceae, Chlorophyta)

Characterization of complete chloroplast genome of Ulva torta (Mertens) Trevisan, 1841

Complete chloroplast genome of Ulva compressa (Ulvales: Ulvaceae)

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