AFLP fingerprints of Pyropia yezoensis (Bangiales, Rhodophyta) populations revealed the important effect of farming protocols on genetic diversity
-
Yuan Cao
, Fu-Li Liu
Abstract
Continuous and intensive selective breeding reduces the genetic diversity of cultivated Pyropia stock, thereby increasing its susceptibility to diseases, and hindering the sustainable development of the Pyropia industry. To develop new Pyropia germplasms with desirable agronomic traits, a new Pyropia yezoensis strain, “Huangyou No. 1” was bred from a wild subtidal population. In this study, the genetic diversity of this strain was analyzed using AFLP. Totally, 249 loci were obtained, of which 248 were polymorphic with a polymorphism rate of 99.6%, using seven primer pairs. The intra-population polymorphism rates of the populations Wild 1 and Wild 2 were the highest (47.39% and 59.44%, respectively), while they were relatively low (20.88–24.5%) in the cultivated populations. The genetic distances between the breeding Pyropia populations cultivated in the same aquaculture farm were low. Specifically, the F2 offspring of “Huangyou No. 1” and the control cultivar, cultivated using the “never-drying” protocol, were genetically distant from the other populations, including that from the same seedlings, yet cultivated using the “periodic-drying” protocol. The never-drying cultivation protocol had a high likelihood of influencing genetic diversity of Pyropia yezoensis.
Acknowledgements
This work was supported by the Special Scientific Research Funds for Central Non-profit Institutes, Chinese Academy of Fishery Sciences (2015A02), Primary Research & Development Plan of Shandong Province (2016GSF115038), National Natural Science Foundation of China (31672630), China Agriculture Research System (CARS-50), National Science and Technology Infrastructure Project (2012–2017), and Science and Technology Plan of Changdao (2016–2018).
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Articles in the same Issue
- Frontmatter
- In this issue
- Physiology and ecology
- Halimeda incrassata (Bryopsidales, Chlorophyta) reaches the Canary Islands: mid- and deep-water meadows in the eastern subtropical Atlantic Ocean
- Tetraspore germination of two vulnerable marine algae, Gelidium canariense and G. arbusculum (Rhodophyta, Gelidiales)
- Taxonomy/phylogeny and biogeography
- Gracilaria microcarpa sp. nov. (Gracilariaceae, Rhodophyta) from the southwestern Gulf of Mexico
- Guidelines for DNA barcoding of coralline algae, focusing on Lithophylloideae (Corallinales) from Brazil
- Genomics
- AFLP fingerprints of Pyropia yezoensis (Bangiales, Rhodophyta) populations revealed the important effect of farming protocols on genetic diversity
- Identification of early biomarkers in proteomic profiles of the phaeophyte Saccharina japonica proximal to and beneath the front of bryozoan colonies
- Discovering novel enzymes from marine ecosystems: a metagenomic approach
Articles in the same Issue
- Frontmatter
- In this issue
- Physiology and ecology
- Halimeda incrassata (Bryopsidales, Chlorophyta) reaches the Canary Islands: mid- and deep-water meadows in the eastern subtropical Atlantic Ocean
- Tetraspore germination of two vulnerable marine algae, Gelidium canariense and G. arbusculum (Rhodophyta, Gelidiales)
- Taxonomy/phylogeny and biogeography
- Gracilaria microcarpa sp. nov. (Gracilariaceae, Rhodophyta) from the southwestern Gulf of Mexico
- Guidelines for DNA barcoding of coralline algae, focusing on Lithophylloideae (Corallinales) from Brazil
- Genomics
- AFLP fingerprints of Pyropia yezoensis (Bangiales, Rhodophyta) populations revealed the important effect of farming protocols on genetic diversity
- Identification of early biomarkers in proteomic profiles of the phaeophyte Saccharina japonica proximal to and beneath the front of bryozoan colonies
- Discovering novel enzymes from marine ecosystems: a metagenomic approach