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Life
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Algae Genetics and Breeding
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Algae Genetics and Breeding

A special issue of Life (ISSN 2075-1729).

Deadline for manuscript submissions: closed (31 December 2022) | Viewed by 4630

Special Issue Editors

Dr. Wenlei Wang

E-Mail Website
Guest Editor
Fisheries College, Jimei University, Xiamen 361021, China
Interests: genetic breeding and application of seaweed
Dr. Aiyou Huang

E-Mail Website
Guest Editor
State Key Laboratory of Marine Resource Utilization in the South China Sea, Hainan University, Haikou 570228, China
Interests: physiological and biochemical processes and metabolic regulation of algae

Special Issue Information

Dear Colleagues,

Algae, including microalgae and macroalgae, possess important economic and ecological value. The scale of algae cultivation is constantly expanding and the production has increased substantially, along with the rapid development and progress of breeding technology, cultivation technology, engineering facilities, and market trade. However, the breeding methods of various economical algae are still prevalent in conventional breeding methods, such as selective breeding, mutation breeding, cross breeding, and somatic clone breeding, which limit the sustainable development of the algae industry. It is of great theoretical significance and practical urgency to study the genetic basis of the important traits of algae and advance the common technology of algae genetics used to speed up the elite variety cultivation of algae. Therefore, this Special Issue focuses on the genetic basis analysis of important traits, the development of genetically linked molecular markers, the interpretation of algae development, the establishment of breeding technology, and breeding new varieties of economic algae.

Dr. Wenlei Wang
Dr. Aiyou Huang
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Life is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • algae
  • breeding
  • economic traits
  • genetic basis
  • molecular markers
  • growth and development
  • stress resistance

Published Papers (3 papers)

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Research

20 pages, 7624 KiB  
Article
Effects of Trophic Acclimation on Growth and Expression Profiles of Genes Encoding Enzymes of Primary Metabolism and Plastid Transporters of Chlamydomonas reinhardtii
by Roman K. Puzanskiy, Daria A. Romanyuk, Anastasia A. Kirpichnikova and Maria F. Shishova
Life 2023, 13(6), 1398; https://doi.org/10.3390/life13061398 - 15 Jun 2023
Viewed by 890
Abstract
In this paper, the effect of prolonged trophic acclimation on the subsequent growth of Chlamydomonas reinhardtii batch cultures was studied. The mixotrophic (light + acetate) acclimation stimulated subsequent growth at both mixotrophy and autotrophy conditions and altered the expression profile of genes encoding [...] Read more.
In this paper, the effect of prolonged trophic acclimation on the subsequent growth of Chlamydomonas reinhardtii batch cultures was studied. The mixotrophic (light + acetate) acclimation stimulated subsequent growth at both mixotrophy and autotrophy conditions and altered the expression profile of genes encoding enzymes of primary metabolism and plastid transporters. Besides the trophic effect, the influence of Chlamydomonas culture growth stage on gene expression was determined. Under mixotrophic conditions, this effect was most pronounced in the first half of the exponential growth with partial retention of the previous acclimation period traits. The autotrophy acclimation effect was more complex and its significance was enhanced at the end of the growth and in the stationary phase. Full article
(This article belongs to the Special Issue Algae Genetics and Breeding)
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15 pages, 3959 KiB  
Article
Investigating the Mechanisms Underlying the Low Irradiance-Tolerance of the Economically Important Seaweed Species Pyropia haitanensis
by Dehua Ji, Yichi Zhang, Bao Zhang, Yan Xu, Kai Xu, Changsheng Chen and Chaotian Xie
Life 2023, 13(2), 481; https://doi.org/10.3390/life13020481 - 9 Feb 2023
Cited by 1 | Viewed by 1031
Abstract
Pyropia haitanensis, one of the most economically and ecologically important seaweed species, is often exposed to persistent or transient low irradiance (LI), resulting in limited yield and quality. However, the mechanisms mediating P. haitanensis responses to LI are largely unknown. In this [...] Read more.
Pyropia haitanensis, one of the most economically and ecologically important seaweed species, is often exposed to persistent or transient low irradiance (LI), resulting in limited yield and quality. However, the mechanisms mediating P. haitanensis responses to LI are largely unknown. In this study, LI-tolerant (LIT) and LI-sensitive (LIS) P. haitanensis strains were compared regarding their physiological and transcriptomic changes induced by 1 and 4 days of LI (5 μmol photons/m2·s). The results indicated that the inhibition of photomorphogenesis and decreases in photosynthesis and photosynthetic carbon fixation as the duration of LI increased are the key reasons for retarded blade growth under LI conditions. A potential self-amplifying loop involving calcium signaling, phosphatidylinositol signaling, reactive oxygen species signaling, and MAPK signaling may be triggered in blades in response to LI stress. These signaling pathways might activate various downstream responses, including improving light energy use, maintaining cell membrane stability, mitigating oxidative damage, to resist LI stress. Additionally, the LIT strain maintained transcriptional homeostasis better than the LIS strain under LI stress. Specifically, photosynthesis and energy production were relatively stable in the LIT strain, which may help to explain why the LIT strain was more tolerant to LI stress than the LIS strain. The findings of this study provide the basis for future investigations on the precise mechanisms underlying the LI stress tolerance of P. haitanensis. Full article
(This article belongs to the Special Issue Algae Genetics and Breeding)
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19 pages, 2072 KiB  
Article
Structure and Phylogeny of Chloroplast and Mitochondrial Genomes of a Chlorophycean Algae Pectinodesmus pectinatus (Scenedesmaceae, Sphaeropleales)
by Xinmei Zhao, Chenglong Liu, Lijuan He, Zhiyong Zeng, Anda Zhang, Hui Li, Zhangli Hu and Sulin Lou
Life 2022, 12(11), 1912; https://doi.org/10.3390/life12111912 - 17 Nov 2022
Cited by 1 | Viewed by 1891
Abstract
Pectinodesmus pectinatus is a green alga of commercial interest in sewage purification. Clarification of its organelle genomes is helpful for genetic manipulation, taxonomic revisions and evolutionary research. Here, de novo sequencing was used to determine chloroplast genome and mitochondrial genome of P. pectinatus [...] Read more.
Pectinodesmus pectinatus is a green alga of commercial interest in sewage purification. Clarification of its organelle genomes is helpful for genetic manipulation, taxonomic revisions and evolutionary research. Here, de novo sequencing was used to determine chloroplast genome and mitochondrial genome of P. pectinatus strain F34. The chloroplast genome was composed of a large single-copy (LSC) region of 99,156 bp, a small single-copy (SSC) region of 70,665 bp, and a pair of inverted repeats (IRs) with a length of 13,494 bp each separated by LSC and SSC. The chloroplast genome contained 69 protein-coding genes, 25 transfer-RNA (tRNA) genes, 3 ribosomal RNA (rRNA) genes. The mitochondrial genome was 32,195 bp in length and consisted of 46 unique genes, including 16 protein-coding genes, 27 tRNA genes and 3 rRNA genes. The predominant mutations in organelle genomes were T/A to G/C transitions. Phylogenic analysis indicated P. pectinatus was a sister species to Tetradesmus obliquus and Hariotina sp. within the Pectinodesmus genus. In analysis with CGView Comparison Tool, P. pectinatus organelle genomes displayed the highest sequence similarity with that of T. obliquus. These findings advanced research on the taxonomy and phylogeny of Chlorophyceae algae and particularly revealed the role of P. pectinatus in microalgae evolution. Full article
(This article belongs to the Special Issue Algae Genetics and Breeding)
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