Biotic unpredictability and sexual reproduction: Do aphid genotype-host genotype interactions favor aphid sexuality?

Blakley, Nigel R.

doi:10.1007/bf00367965

Cited by 9 publications

(4 citation statements)

References 30 publications

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“…Weber (1985) found substantial variation among clones of the polyphagous aphid Myzus persicae in reproductive rate on rape and sugar beet, but no significant correlation among more than 1,000 single-female lines reared on these two hosts. However, some other studies of aphid clones have reported superior growth or reproduction on the host of origin, although trade-offs are not always evident in these cases (reviews by Blakley, 1982;Rausher, 1983).…”

Section: Discussionmentioning

confidence: 94%

Genetic Variation and Covariation in Responses to Host Plants by Alsophila pometaria (Lepidoptera: geometridae)

Futuyma¹,

Philippi²

1987

Evolution

104

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Progeny of uncommon parthenogenetic genotypes of the polyphagous geometric Alsophila pometaria were reared on four host plant species representing the same genus, different confamilial genera, and different families. On the supposition that uncommon asexual genotypes have arisen recently from the sympatric sexual population, they may be viewed as a representation of variation in the sexual population that has been captured by parthenogenesis. In both the laboratory and the field, significant effects of genotype, host, and their interaction were found for survival. Live weight displayed significant effects of genotype, host, and genotype x host interaction in the laboratory, and significant main effects in the field. The broad heritability of live weight within hosts was significantly greater than zero in all cases, ranging from 0.18 to 0.33. Heritability values in the field were similar to those in the laboratory. Genetic correlations between weight attained on pairs of host plants, calculated from uncorrected family means, were all positive and many were statistically significant. When the data were corrected for differences in generalized vigor by taking the deviations from genotype means on a standard host plant, one of nine genetic correlations was significant and positive, and one was significant and negative. Within their limits of precision, these data suggest that genetic factors enhancing performance on one host do not generally have strong antagonistic pleiotropic effects on performance on the other hosts in this population. The relevance of these observations to the evolution of resource specialization in general and host specialization by phytophagous insects in particular is discussed. The common assumption that trade-offs in efficiency of utilization cause the evolution of specialized resource use requires more empirical evidence than seems to exist.

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Section: Discussionmentioning

confidence: 94%

Genetic Variation and Covariation in Responses to Host Plants by Alsophila pometaria (Lepidoptera: geometridae)

Futuyma¹,

Philippi²

1987

Evolution

104

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“…Edmunds and Alstad 1978;Blakely 1982;Service and Lenski 1982;Mitter and Futuyma 1983;Service 1984;Futuyma and Peterson 1985). The existence of trade-offs does not guarantee that differences among hosts will maintain genetic variation, however.…”

Section: Potential Consequences Of Trade-offs In T Urticaementioning

confidence: 94%

Trade-Offs in Fitness on Different Hosts: Evidence from a Selection Experiment with a Phytophagous Mite

Fry¹

1990

The American Naturalist

150

133

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“…Because they are a fundamental resource, plants are a substrate to which associated species must adapt, and a limiting factor that may shape associates' biogeography (Futuyma & Peterson, 1985 ). Plants' impact on their associates' local adaptation and population genetic structure has been a subject of study for decades (Blakley, 1982 ; Drès & Mallet, 2002 ; Futuyma & Peterson, 1985 ; Matsubayashi et al., 2010 ; Peterson & Denno, 1998 ). However, most population genetic studies in this literature examine only the plant, or the associate—or focus on adaptation of associates to contrasting host species rather than adaptation of associate populations to host populations (or vice versa) (Drès & Mallet, 2002 ; Futuyma & Peterson, 1985 ; Matsubayashi et al., 2010 ; Rausher, 1983 ).…”

mentioning

confidence: 99%

Plant-associate interactions and diversification across trophic levels

et al. 2022

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Interactions between species are widely understood to have promoted the diversification of life on Earth, but how interactions spur the formation of new species remains unclear. Interacting species often become locally adapted to each other, but they may also be subject to shared dispersal limitations and environmental conditions. Moreover, theory predicts that different kinds of interactions have different effects on diversification. To better understand how species interactions promote diversification, we compiled population genetic studies of host plants and intimately associated herbivores, parasites, and mutualists. We used Bayesian multiple regressions and the BEDASSLE modeling framework to test whether host and associate population structures were correlated over and above the potentially confounding effects of geography and shared environmental variation. We found that associates' population structure often paralleled their hosts' population structure, and that this effect is robust to accounting for geographic distance and climate. Associate genetic structure was significantly explained by plant genetic structure somewhat more often in antagonistic interactions than in mutualistic ones. This aligns with a key prediction of coevolutionary theory that antagonistic interactions promote diversity through local adaptation of antagonists to hosts, while mutualistic interactions more often promote diversity via the effect of hosts' geographic distribution on mutualists' dispersal.

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Biotic unpredictability and sexual reproduction: Do aphid genotype-host genotype interactions favor aphid sexuality?

Cited by 9 publications

References 30 publications

Genetic Variation and Covariation in Responses to Host Plants by Alsophila pometaria (Lepidoptera: geometridae)

Genetic Variation and Covariation in Responses to Host Plants by Alsophila pometaria (Lepidoptera: geometridae)

Trade-Offs in Fitness on Different Hosts: Evidence from a Selection Experiment with a Phytophagous Mite

Plant-associate interactions and diversification across trophic levels

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