Red-shift of spectral sensitivity due to screening pigment migration in the eyes of a moth, Adoxophyes orana
Abstract Background We have found that the spectral sensitivity of the compound eye in the summer fruit tortrix moth (Adoxophyes orana) differs in laboratory strains originating from different regions of Japan. We have investigated the mechanisms underlying this anomalous spectral sensitivity. Metho...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
BMC
2017-08-01
|
| Series: | Zoological Letters |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1186/s40851-017-0075-6 |
| _version_ | 1819020197357420544 |
|---|---|
| author | Aya Satoh Finlay J. Stewart Hisaharu Koshitaka Hiroshi D. Akashi Primož Pirih Yasushi Sato Kentaro Arikawa |
| author_facet | Aya Satoh Finlay J. Stewart Hisaharu Koshitaka Hiroshi D. Akashi Primož Pirih Yasushi Sato Kentaro Arikawa |
| author_sort | Aya Satoh |
| collection | DOAJ |
| description | Abstract Background We have found that the spectral sensitivity of the compound eye in the summer fruit tortrix moth (Adoxophyes orana) differs in laboratory strains originating from different regions of Japan. We have investigated the mechanisms underlying this anomalous spectral sensitivity. Methods We applied electrophysiology, light and electron microscopy, opsin gene cloning, mathematical modeling, and behavioral analysis. Results The ERG-determined spectral sensitivity of dark-adapted individuals of all strains peaks around 520 nm. When light-adapted, the spectral sensitivity of the Nagano strain narrows and its peak shifts to 580 nm, while that in other strains remains unchanged. All tested strains appear to be identical in terms of the basic structure of the eye, the pigment migration in response to light- and dark-adaptation, and the molecular structure of long-wavelength absorbing visual pigments. However, the color of the perirhabdomal pigment clearly differs; it is orange in the Nagano strain and purple in the others. The action spectrum of phototaxis appears to be shifted towards longer wavelengths in the Nagano individuals. Conclusions The spectral sensitivities of light-adapted eyes can be modeled under the assumption that this screening pigment plays a crucial role in determining the spectral sensitivity. The action spectrum of phototaxis indicates that the change in the eye spectral sensitivity is behaviorally relevant. |
| first_indexed | 2024-12-21T03:47:23Z |
| format | Article |
| id | doaj.art-6f7ae718d1d946928497933da7ecfec0 |
| institution | Directory Open Access Journal |
| issn | 2056-306X |
| language | English |
| last_indexed | 2024-12-21T03:47:23Z |
| publishDate | 2017-08-01 |
| publisher | BMC |
| record_format | Article |
| series | Zoological Letters |
| spelling | doaj.art-6f7ae718d1d946928497933da7ecfec02022-12-21T19:17:03ZengBMCZoological Letters2056-306X2017-08-013111110.1186/s40851-017-0075-6Red-shift of spectral sensitivity due to screening pigment migration in the eyes of a moth, Adoxophyes oranaAya Satoh0Finlay J. Stewart1Hisaharu Koshitaka2Hiroshi D. Akashi3Primož Pirih4Yasushi Sato5Kentaro Arikawa6Laboratory of Neuroethology, SOKENDAI (The Graduate University for Advanced Studies)Laboratory of Neuroethology, SOKENDAI (The Graduate University for Advanced Studies)Laboratory of Neuroethology, SOKENDAI (The Graduate University for Advanced Studies)Laboratory of Neuroethology, SOKENDAI (The Graduate University for Advanced Studies)Laboratory of Neuroethology, SOKENDAI (The Graduate University for Advanced Studies)Division of Tea Research, Institute of Fruit Tree and Tea Science, National Agriculture and Food Research Organization (NARO)Laboratory of Neuroethology, SOKENDAI (The Graduate University for Advanced Studies)Abstract Background We have found that the spectral sensitivity of the compound eye in the summer fruit tortrix moth (Adoxophyes orana) differs in laboratory strains originating from different regions of Japan. We have investigated the mechanisms underlying this anomalous spectral sensitivity. Methods We applied electrophysiology, light and electron microscopy, opsin gene cloning, mathematical modeling, and behavioral analysis. Results The ERG-determined spectral sensitivity of dark-adapted individuals of all strains peaks around 520 nm. When light-adapted, the spectral sensitivity of the Nagano strain narrows and its peak shifts to 580 nm, while that in other strains remains unchanged. All tested strains appear to be identical in terms of the basic structure of the eye, the pigment migration in response to light- and dark-adaptation, and the molecular structure of long-wavelength absorbing visual pigments. However, the color of the perirhabdomal pigment clearly differs; it is orange in the Nagano strain and purple in the others. The action spectrum of phototaxis appears to be shifted towards longer wavelengths in the Nagano individuals. Conclusions The spectral sensitivities of light-adapted eyes can be modeled under the assumption that this screening pigment plays a crucial role in determining the spectral sensitivity. The action spectrum of phototaxis indicates that the change in the eye spectral sensitivity is behaviorally relevant.http://link.springer.com/article/10.1186/s40851-017-0075-6Compound eyeScreening pigment migrationSpectral sensitivityPhototaxisAction spectrum |
| spellingShingle | Aya Satoh Finlay J. Stewart Hisaharu Koshitaka Hiroshi D. Akashi Primož Pirih Yasushi Sato Kentaro Arikawa Red-shift of spectral sensitivity due to screening pigment migration in the eyes of a moth, Adoxophyes orana Zoological Letters Compound eye Screening pigment migration Spectral sensitivity Phototaxis Action spectrum |
| title | Red-shift of spectral sensitivity due to screening pigment migration in the eyes of a moth, Adoxophyes orana |
| title_full | Red-shift of spectral sensitivity due to screening pigment migration in the eyes of a moth, Adoxophyes orana |
| title_fullStr | Red-shift of spectral sensitivity due to screening pigment migration in the eyes of a moth, Adoxophyes orana |
| title_full_unstemmed | Red-shift of spectral sensitivity due to screening pigment migration in the eyes of a moth, Adoxophyes orana |
| title_short | Red-shift of spectral sensitivity due to screening pigment migration in the eyes of a moth, Adoxophyes orana |
| title_sort | red shift of spectral sensitivity due to screening pigment migration in the eyes of a moth adoxophyes orana |
| topic | Compound eye Screening pigment migration Spectral sensitivity Phototaxis Action spectrum |
| url | http://link.springer.com/article/10.1186/s40851-017-0075-6 |
| work_keys_str_mv | AT ayasatoh redshiftofspectralsensitivityduetoscreeningpigmentmigrationintheeyesofamothadoxophyesorana AT finlayjstewart redshiftofspectralsensitivityduetoscreeningpigmentmigrationintheeyesofamothadoxophyesorana AT hisaharukoshitaka redshiftofspectralsensitivityduetoscreeningpigmentmigrationintheeyesofamothadoxophyesorana AT hiroshidakashi redshiftofspectralsensitivityduetoscreeningpigmentmigrationintheeyesofamothadoxophyesorana AT primozpirih redshiftofspectralsensitivityduetoscreeningpigmentmigrationintheeyesofamothadoxophyesorana AT yasushisato redshiftofspectralsensitivityduetoscreeningpigmentmigrationintheeyesofamothadoxophyesorana AT kentaroarikawa redshiftofspectralsensitivityduetoscreeningpigmentmigrationintheeyesofamothadoxophyesorana |