A key metabolic gene for recurrent freshwater colonization and radiation in fishes

Author:

Ishikawa Asano12ORCID,Kabeya Naoki34ORCID,Ikeya Koki5ORCID,Kakioka Ryo1ORCID,Cech Jennifer N.6ORCID,Osada Naoki7ORCID,Leal Miguel C.8,Inoue Jun9ORCID,Kume Manabu1ORCID,Toyoda Atsushi10ORCID,Tezuka Ayumi11ORCID,Nagano Atsushi J.11ORCID,Yamasaki Yo Y.1ORCID,Suzuki Yuto12,Kokita Tomoyuki12,Takahashi Hiroshi13ORCID,Lucek Kay814ORCID,Marques David814ORCID,Takehana Yusuke15ORCID,Naruse Kiyoshi15ORCID,Mori Seiichi16,Monroig Oscar17ORCID,Ladd Nemiah1819ORCID,Schubert Carsten J.18ORCID,Matthews Blake820,Peichel Catherine L.614ORCID,Seehausen Ole814ORCID,Yoshizaki Goro3ORCID,Kitano Jun12ORCID

Affiliation:

1. Ecological Genetics Laboratory, National Institute of Genetics, Shizuoka, Japan.

2. Department of Genetics, Graduate University for Advanced Studies (SOKENDAI), Shizuoka, Japan.

3. Department of Marine Biosciences, Tokyo University of Marine Science and Technology, Tokyo, Japan.

4. Department of Aquatic Bioscience, The University of Tokyo, Tokyo, Japan.

5. Gifu World Freshwater Aquarium, Gifu, Japan.

6. Divisions of Human Biology and Basic Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.

7. Graduate School of Bioengineering and Bioinformatics, Hokkaido University, Sapporo, Japan.

8. Department of Fish Ecology and Evolution, Eawag Swiss Federal Institute of Aquatic Science and Technology, Centre for Ecology, Evolution and Biogeochemistry, Kastanienbaum, Switzerland.

9. Marine Genomics Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan.

10. Comparative Genomics Laboratory, National Institute of Genetics, Shizuoka, Japan.

11. Faculty of Agriculture, Ryukoku University, Otsu, Shiga, Japan.

12. Department of Marine Bioscience, Fukui Prefectural University, Obama, Fukui, Japan.

13. Department of Applied Aquabiology, National Fisheries University, Shimonoseki, Yamaguchi, Japan.

14. Institute of Ecology and Evolution, University of Bern, Bern, Switzerland.

15. Laboratory of Bioresources, National Institute for Basic Biology, Okazaki, Aichi, Japan.

16. Biological Laboratory, Gifu Kyoritsu University, Ogaki, Gifu, Japan.

17. Instituto de Acuicultura Torre de la Sal (IATS-CSIC), Ribera de Cabanes, Castellón, Spain.

18. Department of Surface Waters–Research and Management, Eawag Swiss Federal Institute of Aquatic Science and Technology, Centre for Ecology, Evolution and Biogeochemistry, Kastanienbaum, Switzerland.

19. Department of Earth Sciences, ETH-Zurich, Zurich Switzerland.

20. Department of Aquatic Ecology, Eawag Swiss Federal Institute of Aquatic Science and Technology, Centre for Ecology, Evolution and Biogeochemistry, Kastanienbaum, Switzerland.

Abstract

Well prepared It is well known that species radiate into new niches by adapting to novel environments. But why do some species radiate in this way, while other, related, species do not. Ishikawa et al. looked across sticklebacks to determine why some, originally marine, lineages were able to colonize postglacial freshwater environments (see the Perspective by Weber and Tong). They found that a gene involved in fatty acid desaturation was duplicated in freshwater lineages. Transgenic manipulation of this gene allowed marine lineages to synthesize fatty acids and thus survive on fatty acid–deficient freshwater diets. Science , this issue p. 886 ; see also p. 831

Funder

JSPS

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference127 articles.

1. D. Schluter The Ecology of Adaptive Radiation (Oxford Univ. Press 2000).

2. Adaptive Radiation, Ecological Opportunity, and Evolutionary Determinism

3. G. G. Simpson The Major Features of Evolution . Columbia University Biological Series (Columbia Univ. Press 1953).

4. Speciation in Freshwater Fishes

5. Fossil-based comparative analyses reveal ancient marine ancestry erased by extinction in ray-finned fishes

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