Photoperiodic and clock regulation of the vitamin A pathway in the brain mediates seasonal responsiveness in the monarch butterfly
Iiams SE, Lugena AB, Zhang Y and others. Proceedings of the National Academy of Sciences of the United States of America, November 2019.
Go to the paper May need a subscription · doi:10.1073/pnas.1913915116
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Milkweed USA. (2026). Photoperiodic and clock regulation of the vitamin A pathway in the brain mediates seasonal responsiveness in the monarch butterfly (listing). Retrieved DATE, from https://milkweedusa.com/research/photoperiodic-and-clock-regulation-of-the-vitamin-a-pathway-2019/
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"Photoperiodic and clock regulation of the vitamin A pathway in the brain mediates seasonal responsiveness in the monarch butterfly (listing)." Milkweed USA, 2026, https://milkweedusa.com/research/photoperiodic-and-clock-regulation-of-the-vitamin-a-pathway-2019/. Accessed DATE.
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Milkweed USA. "Photoperiodic and clock regulation of the vitamin A pathway in the brain mediates seasonal responsiveness in the monarch butterfly (listing)." Last modified 2026-08-01. Accessed DATE. https://milkweedusa.com/research/photoperiodic-and-clock-regulation-of-the-vitamin-a-pathway-2019/.
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@misc{milkweedusa_researchphotoperiodicandcloc,
title = {Photoperiodic and clock regulation of the vitamin A pathway in the brain mediates seasonal responsiveness in the monarch butterfly (listing)},
author = {{Milkweed USA}},
year = {2026},
url = {https://milkweedusa.com/research/photoperiodic-and-clock-regulation-of-the-vitamin-a-pathway-2019/},
note = {Accessed DATE}
}