Melanization plasticity of Drosophila kikkawai, Drosophila leontia and reciprocal hybrids under different temperatures

Singh, Divya; Ramniwas, Seema; Tyagi, Pankaj; Kumar, Girish; Gola, Deepak

doi:10.1016/j.aspen.2021.101865

Cited by 2 publications

(2 citation statements)

References 90 publications

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“…If melanin plasticity is an adaptation for thermally variable environments, we would expect that melanic individuals have higher fitness than non-melanic individuals in a cold environment but non-melanic individuals have higher fitness than melanic individuals in a warm environment (Figure 1a). This is true in Drosophila kikkawai, where melanic morphs had higher hatching and survival in cold temperatures but lower hatching and survival in warm temperatures (Singh et al, 2022). Alternatively, other factors may be more important in explaining the evolution of melanin plasticity.…”

Section: Introductionmentioning

confidence: 99%

The adaptive role of melanin plasticity in thermally variable environments

Britton,

Davidowitz

2023

Journal of Evolutionary Biology

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Understanding the evolution of adaptive plasticity is fundamental to our knowledge of how organisms interact with their environments and cope with environmental change. Plasticity in melanin pigmentation is common in response to variable environments, especially thermal environments. Yet, the adaptive significance of melanin plasticity in thermally variable environments is often assumed, but rarely explicitly tested. Furthermore, understanding the role of plasticity when a trait is responsive to multiple environmental stimuli and plays many functional roles remains poorly understood. We test the hypothesis that melanin plasticity is an adaptation for thermally variable environments using Hyles lineata, the white‐lined sphinx moth, which shows plasticity in melanin pigmentation during the larval stage. Melanin pigmentation influences thermal traits in H. lineata, as melanic individuals had higher heating rates and reached higher body temperatures than non‐melanic individuals. Importantly, melanin pigmentation has temperature specific fitness consequences. While melanic individuals had an advantage in cold temperatures, neither phenotype had a clear fitness advantage at warm temperatures. Thus, the costs associated with melanin production may be unrelated to thermal context. Our results highlight the importance of explicitly testing the adaptive role of plasticity and considering all the factors that influence costs and benefits of plastic phenotypes across environments.

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Section: Introductionmentioning

confidence: 99%

The adaptive role of melanin plasticity in thermally variable environments

Britton,

Davidowitz

2023

Journal of Evolutionary Biology

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“…Melanism is a discernible phenotypic variation in conspecific and heterospecific insects (Ma et al, 2008; Singh et al, 2022). It commonly occurs through the existence of morphs that are incompletely or completely dark in pigmentation.…”

Section: Introductionmentioning

confidence: 99%

Melanic morphs of Bactrocera dorsalis possess distinct developmental time, weight, and wing size and shape

Mwando

Baleba

Ndlela

et al. 2023

Entomologia Exp Applicata

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The oriental fruit fly, Bactrocera dorsalis (Hendel) (Diptera: Tephritidae), is one of the most important horticultural pests, comprising nearly 100 morphologically similar taxa present in at least 75 countries (Drew & Romig, 2013;Zeng et al., 2019). They are characteristically invasive and polyphagous, with a broad host range and therefore widely distributed (USDA-APHIS, 2016; CABI, 2020). Originally, B. dorsalis was endemic to the tropical and subtropical regions of Asia, from where it is believed to have spread to other parts of the world (Wan et al., 2012). In sub-Saharan Africa (SSA), it was first detected in Kenya in 2003, rapidly spreading into East and West Africa, as well as centralsouthern parts of Africa within a short period (Lux

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Melanization plasticity of Drosophila kikkawai, Drosophila leontia and reciprocal hybrids under different temperatures

Cited by 2 publications

References 90 publications

The adaptive role of melanin plasticity in thermally variable environments

The adaptive role of melanin plasticity in thermally variable environments

Melanic morphs of Bactrocera dorsalis possess distinct developmental time, weight, and wing size and shape

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