Bionomics of aphids reared on cereals and some Gramineae

Dean, G. J.

doi:10.1111/j.1744-7348.1973.tb01317.x

Cited by 56 publications

(40 citation statements)

References 18 publications

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“…Dean (1973) tested a single clone of S. avenae from barley on both barley and wheat, and found that the clone tended to perform better on barley than on wheat. Barley clones performed differently in our study when transferred from barley to wheat.…”

Section: S Avenae Clones Specialized?mentioning

confidence: 98%

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Differential Performance of Sitobion avenae (Hemiptera: Aphididae) Clones From Wheat and Barley With Implications for its Management Through Alternative Cultural Practices

Gao

Liu

2013

jnl. econ. entom.

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Cultural control measures should play an important role in cereal aphid management on wheat and barley. Planting barley in fields adjacent to those of wheat and intercropping wheat with barley are cultural practices that might suppress the cosmopolitan cereal pest Sitobion avenae (F.). To evaluate the potential effects of these cultural measures on aphid outbreak risks, clones of S. avenae were collected from wheat and barley. Host-switch experiments for the collected clones were conducted in the laboratory to compare their life table parameters and other life history traits. Our results demonstrated that wheat clones of S. avenae had lower developmental times, higher fecundities, and higher growth rates compared with barley clones when tested on the plant of origin. When transferred to barley, the performance of wheat clones was decreased in terms of developmental times of nymphs and age at first reproduction of adults. Barley clones' performance was decreased in terms of reproductive time or lifespan of adult on wheat compared with that on barley. The age-specific survival rates of barley clones tended to be lower than wheat clones in the earlier part of their lives on wheat. The age-specific fecundity of barley clones on barley remained low and fluctuated significantly during their lifetime. Although quite a few significant correlations between developmental and reproductive traits were identified on both plants, no significantly negative correlations (i.e., trade-offs) for the traits were found between plants. The results suggested that barley clones could be generalized but wheat clones were more specialized to their host plant. The potential benefits of the abovementioned cultural measures were discussed.

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Section: S Avenae Clones Specialized?mentioning

confidence: 98%

“…However, detailed studies of S. avenae performance on both wheat and barley are rare. Dean (1973) evaluated the development and survival of a single S. avenae clone from barley on barley. The performances of a single S. avenae clone from wheat were determined on both wheat and barley (Watson and Dixon 1984).…”

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confidence: 99%

Differential Performance of Sitobion avenae (Hemiptera: Aphididae) Clones From Wheat and Barley With Implications for its Management Through Alternative Cultural Practices

Gao

Liu

2013

jnl. econ. entom.

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“…Several studies compared the development and survival of S. avenae clones on wheat, barley and oat (Adams & Drew, ; Dean, ; Watson & Dixon, ; Gao & Liu, ), but these studies did not characterize the extent of S. avenae specialization to the plant species involved. We hypothesize that divergent selection experienced by S. avenae on different host plants favors the evolution of highly specialized clones for particular hosts.…”

Section: Introductionmentioning

confidence: 99%

Fitness traits and underlying genetic variation related to host plant specialization in the aphid Sitobion avenae

et al. 2014

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Sitobion avenae (F.) is an important cereal pest worldwide that can survive on various plants in the Poaceae, but divergent selection on different host plants should promote the evolution of specialized genotypes or host races. In order to evaluate their resource use strategies, clones of S. avenae were collected from oat and barley. Host-transfer experiments for these clones were conducted in the laboratory to compare their fitness traits. Our results demonstrated that barley clones had significantly lower fecundity and tended to have longer developmental times when transferred from barley to oat. However, oat clones developed faster after they were transferred to barley. Clones from oat and barley had diverged to a certain extent in terms of fecundity and developmental time of the nymphs. The separation of barley clones and oat clones of S. avenae was also evident in a principal component analysis. Barley clones tended to have higher broad-sense heritabilities for fitness traits than oat clones, indicating the genetic basis of differentiation between them. Barley clones showed significantly higher extent of specialization compared to oat clones from two measures of specialization (i.e., Xsp and Ysp). Therefore, barley clones were specialized to a certain extent, but oat clones appeared to be generalized. The fitness of S. avenae clones tended to increase with higher extent of specialization. The evolution toward ecological specialization in S. avenae clones, as well as the underlying genetic basis, was discussed.

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“…Besides abiotic factors like temperature and rainfall, the population differentiation of S. avenae in the areas mentioned earlier may be closely related to the differences in phenology and distribution of cereal crops and wild host plants (Dean 1973), agronomic practices (Gao and Liu 2013), and natural enemy abundance (Entwistle and Dixon 1989). For example, geographic variation in relative host plant abundances may lead to the development of host-adapted populations of S. avenae identiÞed in the studies of De Barro et al (1995), Sunnucks et al (1997), and Gao and Liu (2013).…”

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confidence: 98%

Differential Performance of Sitobion avenae Populations From Both Sides of the Qinling Mountains Under Common Garden Conditions

et al. 2013

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Sitobion avenae (F.) is a cosmopolitan cereal pest, but geographic barriers like the Qinling Mountains in the Shaanxi Province of China may lead to isolation among its populations, thus causing allopatric speciation. We sampled S. avenae populations from areas north (mean annual temperature, ≍9°C) and south (mean annual temperature, ≍14°C) of the Qinling Mountains, and tested them at 20°C in common garden experiments. The results showed that northern populations had reduced developmental time for first-instar nymphs but prolonged for third- and fourth-instar nymphs compared with southern populations. The postreproductive time and total lifespan of adults from southern populations were longer than those from northern populations, but no significant differences were found in reproductive time or age at first reproduction. Southern populations showed higher lifetime and daily fecundities than northern ones. Significant differences were found in correlation of life-history traits between northern and southern populations. Principal component analyses (PCAs) of S. avenae's vital life-history traits showed separation of populations from three southern locations, indicating their local adaptation. The clustering patterns generated by PCA also showed divergence between northern and southern populations. Alatae of S. avenae seemed to be able to disperse across the Qinling Mountains, which was indicated by the clustering together of some individuals from one side of the mountains with those from the other side. The impacts of the Qinling Mountains on the divergence and gene flow among S. avenae populations, as well as the potential of allopatric speciation for this species, are discussed.

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Bionomics of aphids reared on cereals and some Gramineae

Cited by 56 publications

References 18 publications

Differential Performance of <I>Sitobion avenae</I> (Hemiptera: Aphididae) Clones From Wheat and Barley With Implications for its Management Through Alternative Cultural Practices

Differential Performance of <I>Sitobion avenae</I> (Hemiptera: Aphididae) Clones From Wheat and Barley With Implications for its Management Through Alternative Cultural Practices

Fitness traits and underlying genetic variation related to host plant specialization in the aphid Sitobion avenae

Differential Performance of <I>Sitobion avenae</I> Populations From Both Sides of the Qinling Mountains Under Common Garden Conditions

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