First Record of Ulva pertusa Kjellman (Ulvales, Chlorophyta) in the Pacific Coast of Mexico

Genetic diversity of native and introduced populations of Ulva pertusa (Ulvales, Chlorophyta) was examined using genetic markers of chloroplast, mitochondria and nuclear non-coding region sequences. In the preliminary investigations to genetically identify the species for further analyses, U. pertusa was found only from temperate coasts of the more extensive collection sites including tropical coasts suggesting that it is a temperate species and basically not distributed in tropical regions. For chloroplast and mitochondrial sequences, repeating patterns of short tandem repeat sequences and nucleotide substitutions were used to recognize the haplotypes (genetic types). A total of 48 haplotypes based on combinations of chloroplast and mitochondrial haplotypes were recognized in the 244 specimens collected in the presumptive native range (Northeast Asia) and introduced populations (North America, Australia, New Zealand, Chile and Europe). Among them, 46 haplotypes (H1-H8 and H11-H48) were recognized in Northeast Asia, whereas only 1-5 haplotypes were recognized in the other areas. Nuclear microsatellite sequences were also analyzed. The lengths of the PCR products including the nuclear microsatellite region of 234 specimens were determined, and a total of 17 genotypes were recognized. Among them, 14 genotypes were found in Northeast Asia, whereas 1-7 genotypes were recognized in the other areas. Based on the results, the hypothesis that the native range of the species is in Northeast Asia was supported, and the populations outside this range were concluded to be non-indigenous populations.

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“…; Saunders & Kucera ), Mexico (Aguilar‐Rosas et al . ), Yemen, Kenya, Mauritius and Tanzania (Silva et al . ), New Zealand (Heesch et al .…”

Section: Introductionmentioning

confidence: 99%

Genetic diversity and biogeography of native and introduced populations of Ulva pertusa (Ulvales, Chlorophyta)

Hanyuda

Heesch

Nelson

et al. 2016

Phycological Research

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“…A western Pacific species, Ulva pertusa is also recorded in the eastern Pacific from northern Baja California (R. Aguilar-Rosas et al, 2008;L. Aguilar-Rosas et al, 2014).…”

Section: Invasive Species: Ulva Pertusa Kjellman 1897:4mentioning

confidence: 99%

Conspectus of the Benthic Marine Algae of the Gulf of California: Rhodophyta, Phaeophyceae, and Chlorophyta

Norris¹,

Aguilar-Rosas²,

Pedroche³

2017

Smithsonian Contributions to Botany

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s m i t h s o n i a n c o n t r i b u t i o n s t o b o t a n y • n u m b e r 1 0 6 SERIES PUBLICATIONS OF THE SMITHSONIAN INSTITUTIONEmphasis upon publication as a means of "diffusing knowledge" was expressed by the first Secretary of the Smithsonian. In his formal plan for the Institution, Joseph Henry outlined a program that included the following statement: "It is proposed to publish a series of reports, giving an account of the new discoveries in science, and of the changes made from year to year in all branches of knowledge." This theme of basic research has been adhered to through the years by thousands of titles issued in series publications under the Smithsonian imprint, commencing with Smithsonian Contributions to Knowledge in 1848 and continuing with the following active series: s m i t h s o n i a n c o n t r i b u t i o n s t o b o t a n y • n u m b e r 1 0 6

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“…; CABI ) and along the Pacific coast of North America (Baja California, Mexico; Aguilar‐Rosas et al. ). Along the coasts of Qingdao, China, this opportunistic native alga flourishes from March to May and sometimes forms small‐scale green tides along the coasts.…”

mentioning

confidence: 99%

Mitochondrial genomes of the green macroalga Ulva pertusa (Ulvophyceae, Chlorophyta): novel insights into the evolution of mitogenomes in the Ulvophyceae

Liu

Melton

2017

Journal of Phycology

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To further understand the trends in the evolution of mitochondrial genomes (mitogenomes or mtDNAs) in the Ulvophyceae, the mitogenomes of two separate thalli of Ulva pertusa were sequenced. Two U. pertusa mitogenomes (Up1 and Up2) were 69,333 bp and 64,602 bp in length. These mitogenomes shared two ribosomal RNAs (rRNAs), 28 transfer RNAs (tRNAs), 29 protein-coding genes, and 12 open reading frames. The 4.7 kb difference in size was attributed to variation in intron content and tandem repeat regions. A total of six introns were present in the smaller U. pertusa mtDNA (Up2), while the larger mtDNA (Up1) had eight. The larger mtDNA had two additional group II introns in two genes (cox1 and cox2) and tandem duplication mutations in noncoding regions. Our results showed the first case of intraspecific variation in chlorophytan mitogenomes and provided further genomic data for the undersampled Ulvophyceae.

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First Record of Ulva pertusa Kjellman (Ulvales, Chlorophyta) in the Pacific Coast of Mexico

Cited by 18 publications

References 31 publications

Genetic diversity and biogeography of native and introduced populations of Ulva pertusa (Ulvales, Chlorophyta)

Genetic diversity and biogeography of native and introduced populations of Ulva pertusa (Ulvales, Chlorophyta)

Conspectus of the Benthic Marine Algae of the Gulf of California: Rhodophyta, Phaeophyceae, and Chlorophyta

Mitochondrial genomes of the green macroalga Ulva pertusa (Ulvophyceae, Chlorophyta): novel insights into the evolution of mitogenomes in the Ulvophyceae

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