Algal Ocelloids and Plant Ocelli
Round 1
Reviewer 1 Report
The Review article is focusing on the evolution of vision in animals in comparison with algal ocelloids and plant ocelli. The description is very interesting and good content worthy of accepting especially the structure of vision.
I would like to suggest to cite a couple literature revealing a function of eyespots of algae.
(1) In the section of Chlamydomonas, some of the Wakabayashi lab papers are valuable for deep understanding of their functions as follows.
Characterization of Chlamydomonas reinhardtii Mutants That Exhibit Strong Positive Phototaxis
Jun Morishita, Ryutaro Tokutsu, Jun Minagawa, Toru Hisabori, Ken-ichi Wakabayashi
Plants 10(7) 1483-1483
Eyespot-dependent determination of the phototactic sign in Chlamydomonas reinhardtii
Noriko Ueki, Takahiro Ide, Shota Mochiji, Yuki Kobayashi, Ryutaro Tokutsu, Norikazu Ohnishi, Katsushi Yamaguchi, Shuji Shigenobu, Kan Tanaka, Jun Minagawa, Toru Hisabori, Masafumi Hirono, Ken-ichi Wakabayashi
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 113(19) 5299-5304
Cooperative binding of the outer arm-docking complex underlies the regular arrangement of outer arm dynein in the axoneme
Mikito Owa, Akane Furuta, Jiro Usukura, Fumio Arisaka, Stephen M. King, George B. Witman, Ritsu Kamiya, Ken-ichi Wakabayashi
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 111(26) 9461-9466
Reduction-oxidation poise regulates the sign of phototaxis in Chlamydomonas reinhardtii
Ken-ichi Wakabayashi, Yuka Misawa, Shota Mochiji, Ritsu Kamiya
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 108(27) 11280-11284
(2) In the other algal ocelloids, not only dinoflagellates, but also, euglenoid eyespot is a very popular and very interesting one for many researchers. I would like to strongly suggest to add some descriptions of recent knowledge of Euglena eyespot structure and function.
Carotenoids in the eyespot apparatus are required for triggering phototaxis in Euglena gracilis
Shota Kato, Kazunari Ozasa, Mizuo Maeda, Yuri Tanno, Shun Tamaki, Mieko Higuchi-Takeuchi, Keiji Numata, Yutaka Kodama, Mayuko Sato, Kiminori Toyooka, Tomoko Shinomura
Plant Journal 101(5) 1091-1102、2020
Carotenoid accumulation in the eyespot apparatus required for phototaxis is independent of chloroplast development in Euglena gracilis
Shun Tamaki, Yuri Tanno, Shota Kato, Kazunari Ozasa, Mayumi Wakazaki, Mayuko Sato, Kiminori Toyooka, Takashi Maoka, Takahiro Ishikawa, Mizuo Maeda, Tomoko Shinomura
Plant Science 298 2020
Author Response
Thank you very much for reviewing our manuscript. We appreciate all your comments and suggestions.
We are pleased to re-submit a new version of the manuscript with all suggested changes. We have accepted them all to prepare our improved final version. Once again, thank you very much for all your criticism, comments, and suggestions.
Reviewer 2 Report
The paper of Yamashita and Baluska presents an interesting perspective about the evolutionary link between algal ocelloids and plant ocelli.
I just recommend to include a tree of eukaryotes (see for example the works of Burki: https://doi.org/10.1101/cshperspect.a016147) to locate the phylogentic distance between the dinoflagellates, chamydomonas and plants... and eventually discuss convergent or divergent evolution process.
I also recommend to read and quote the following papers:
-In Duanmu et al. (2014) a similar hypothesis about the evolution of some photoreceptors of land plants and algae is proposed. This could supports the present hypothesis... PMID: 25267653
-Alder (2015) : PMID: 26324673
-Francis (1967) On the eyespot of the dinoflagellate, Nematodinium
PMID: 5592416 (first prediction about lens in Ocelloids)
-Gehring : New perspectives on eye development and the evolution of eyes and photoreceptors: PMID: 15653558
Koening and Gross: Evolution and development of complex eyes: a celebration of diversity : PMID: 33051250
Author Response
Thank you very much for reviewing our manuscript. We appreciate all your comments and suggestions.
We are pleased to re-submit a new version of the manuscript with all suggested changes. We have accepted them all to prepare our improved final version. Once again, thank you very much for all your criticism, comments, and suggestions.
