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Changes in Red Color Sensitivity over the Spawning Cycle of Female Three-spined Stickleback ()

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Journal Zool Stud
Date 2022 Nov 4
PMID 36330025
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Abstract

Male red nuptial coloration is a primary mating signal for three-spined sticklebacks (), and the retinae of both sexes are especially sensitive to red during the breeding season. Red sensitivity is an important aspect of female mate choice in this species, but only when they are ready to spawn and not over the entire breeding period. Here, we aimed to determine if the red sensitivity of female sticklebacks change over their repeat spawning cycle. To this end, we assessed retinal opsin mRNA levels and behavioral red sensitivity in females over this cycle. Both methods indicated that females were more sensitive to red during spawning than in the inter-spawning intervals. Relative expression levels of red color opsin genes () and optical motor sensitivity were high during spawning, decreased after the spawning period, and then increased again 72-96 h later when they were ready to spawn again. Thus, female sticklebacks altered their color sensitivity according to need, but the underlying mechanism remains unclear.

References
1.
Hellqvist A, Schmitz M, Mayer I, Borg B . Seasonal changes in expression of LH-beta and FSH-beta in male and female three-spined stickleback, Gasterosteus aculeatus. Gen Comp Endocrinol. 2005; 145(3):263-9. DOI: 10.1016/j.ygcen.2005.09.012. View

2.
Lindstrom J, Pike T, Blount J, Metcalfe N . Optimization of resource allocation can explain the temporal dynamics and honesty of sexual signals. Am Nat. 2009; 174(4):515-25. DOI: 10.1086/606008. View

3.
Novales Flamarique I . Opsin switch reveals function of the ultraviolet cone in fish foraging. Proc Biol Sci. 2012; 280(1752):20122490. PMC: 3574309. DOI: 10.1098/rspb.2012.2490. View

4.
Friesen C, Ramsey M, Cummings M . Differential sensitivity to estrogen-induced opsin expression in two poeciliid freshwater fish species. Gen Comp Endocrinol. 2016; 246:200-210. DOI: 10.1016/j.ygcen.2016.12.009. View

5.
Shao Y, Wang F, Fu W, Yan H, Anraku K, Chen I . Androgens increase lws opsin expression and red sensitivity in male three-spined sticklebacks. PLoS One. 2014; 9(6):e100330. PMC: 4070989. DOI: 10.1371/journal.pone.0100330. View