Host plant adaptability and proteomic differences of diverse Rhopalosiphum maidis (Fitch) lineages

Host plant selection and virus transmission by Rhopalosiphum maidis are conditioned by potyvirus infection in Sorghum bicolor

Arthropod-Plant Interactions ◽

10.1007/s11829-020-09783-4 ◽

2020 ◽

Vol 14 (6) ◽

pp. 811-823

Author(s):

Peter Klein ◽

C. Michael Smith

Keyword(s):

Sorghum Bicolor ◽

Host Plant ◽

Mosaic Virus ◽

Virus Transmission ◽

Plant Viruses ◽

Maize Dwarf Mosaic Virus ◽

Host Plant Selection ◽

Economic Damage ◽

Plant Selection ◽

Rhopalosiphum Maidis

AbstractMany plant viruses are significant pathogens that are able to utilize arthropod vectors to infect a vast range of host plants, resulting in serious economic damage to world food crops. One such crop is Sorghum bicolor, grain sorghum, which is the fifth most important global cereal crop, it is grown for human consumption, animal feed, and biofuel. In this study, the Potyviruses Johnsongrass mosaic virus (JGMV), Maize dwarf mosaic virus (MDMV), Sugarcane mosaic virus (SCMV), and Sorghum mosaic virus (SRMV) were tested for their rates of transmission into tissues of S. bicolor by the corn leaf aphid, Rhopalosiphum maidis. In addition, virus infected and non-infected S. bicolor plants were assessed for their effects on R. maidis host plant selection behavior. Further, the propagation of each virus (viral ssRNA copy number) in infected plants was determined using qPCR amplification of viral coating protein gene fragments. The mean rate of JGMV transmission into S. bicolor plants by R. maidis was significantly lower than transmission of MDMV, SCMV, and/or SRMV. Sorghum bicolor plants infected with MDMV, SCMV or SRMV also attract significantly more R. maidis than non-infected plants. JGMV-infected plants do not effect a similar change in R. maidis plant choice preference. The preference of non-viruliferous R. maidis toward S. bicolor plants infected with MDMV, SCMV or SRMV, and lack of such attraction by JGMV-infected plants may play a role in virus transmission strategy and efficiency by the vector.

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Karyotype variation in the corn leaf aphid, Rhopalosiphum maidis (Fitch), species complex (Hemiptera: Aphididae) in relation to host-plant and morphology

Bulletin of Entomological Research ◽

10.1017/s0007485300013110 ◽

1988 ◽

Vol 78 (2) ◽

pp. 351-363 ◽

Cited By ~ 44

Author(s):

P. A. Brown ◽

R. L. Blackman

Keyword(s):

Host Plant ◽

Species Complex ◽

Sorghum Halepense ◽

X Chromosomes ◽

Rhopalosiphum Maidis ◽

Johnson Grass ◽

Corn Leaf Aphid ◽

The World ◽

Single Clone ◽

Canonical Variates

AbstractRhopalosiphum maidis (Fitch) collected on barley in the northern hemisphere usually has a ten-chromosome karyotype, whereas samples from maize, sorghum and Johnson grass (Sorghum halepense) from all parts of the world commonly have 2n = 8. Samples with other karyotypes (2n = 9, 2n = 11 and 2n = 8 heterozygous for an interchange between the X chromosomes) occur less frequently on these and other species of Gramineae. Multivariate morphometric analysis, principally by the method of canonical variates, indicated that the ten-chromosome form may be regarded as a single clone of R. maidis recognizable by its karyotype and host-plant relationships, although not completely separable by morphology alone from all other clones of this permanently parthenogenetic species complex.

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Mango: A new host plant for the lycaeinid Anthene lycaenina lycaenina (R. Felder, 1868)

ENTOMON ◽

10.33307/entomon.v45i3.556 ◽

2020 ◽

Vol 45 (3) ◽

pp. 237-238

Author(s):

J. Nayanathara ◽

R. Narayana

Keyword(s):

Host Plant ◽

New Host ◽

First Time

Anthene lycaenina lycaenina (R. Felder, 1868) is reported on mango for the first time.

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The description of a new Bruchophagus species (Hymenoptera, Chalcidoidea, Eurytomidae) developing in seeds of Melilotus officinalis (L.) Descr. (Fabaceae) in Iran

Ukrainian Entomological Journal ◽

10.15421/281902 ◽

2019 ◽

Vol 16 (1) ◽

pp. 12-15

Author(s):

M.D. Zerova ◽

A. Al-Sendi ◽

V.N. Fursov ◽

H. Adeli-Manesh ◽

S.E. Sadeghi ◽

...

Keyword(s):

New Species ◽

Host Plant ◽

Lotus Corniculatus ◽

Lateral View ◽

National Academy Of Sciences ◽

Melilotus Officinalis ◽

Biological Features ◽

Academy Of Sciences

The new species, Bruchophagus ayadi sp.n., is reared from seed pods of Melilotus officinalis (L.) Desr. (Fabaceae) in Iran (Lorestan). The new species is close to B. platypterus (Walk.), but differs by roundish abdomen and very gibbous, almost globular (in lateral view) mesosoma. These species can be also differentiated by some biological features. The host plant of B. platypterus is Lotus corniculatus L., whereas the new species is reared from Melilotus officinalis (L.) Desr. Holotype of Bruchophagus ayadi sp.n. is deposited in the collection of I.I. Schmalhausen Institute of Zoology of National Academy of Sciences of Ukraine (Kyiv).

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