scholarly journals Molecular evolutionary trends and feeding ecology diversification in the Hemiptera, anchored by the milkweed bug genome

2019 ◽  
Vol 20 (1) ◽  
Author(s):  
Kristen A. Panfilio ◽  
Iris M. Vargas Jentzsch ◽  
Joshua B. Benoit ◽  
Deniz Erezyilmaz ◽  
Yuichiro Suzuki ◽  
...  
Keyword(s):  
Feeding Ecology ◽  
Evolutionary Trends ◽  
Milkweed Bug

scholarly journals Molecular evolutionary trends and feeding ecology diversification in the Hemiptera, anchored by the milkweed bug genome

2017 ◽  
Author(s):  
Kristen A. Panfilio ◽  
Iris M. Vargas Jentzsch ◽  
Joshua B. Benoit ◽  
Deniz Erezyilmaz ◽  
Yuichiro Suzuki ◽  
...  
Keyword(s):  
Feeding Ecology ◽  
Critical Mass ◽  
Blood Feeding ◽  
Oncopeltus Fasciatus ◽  
Structure Evolution ◽  
Gene Repertoire ◽  
Protein Coding ◽  
Milkweed Bug ◽  
Insect Order ◽  
Specific Expansion

AbstractBackgroundThe Hemiptera (aphids, cicadas, and true bugs) are a key insect order, with high diversity for feeding ecology and excellent experimental tractability for molecular genetics. Building upon recent sequencing of hemipteran pests such as phloem-feeding aphids and blood-feeding bed bugs, we present the genome sequence and comparative analyses centered on the milkweed bug Oncopeltus fasciatus, a seed feeder of the family Lygaeidae.ResultsThe 926-Mb Oncopeltus genome is well represented by the current assembly and official gene set. We use our genomic and RNA-seq data not only to characterize the protein-coding gene repertoire and perform isoform-specific RNAi, but also to elucidate patterns of molecular evolution and physiology. We find ongoing, lineage-specific expansion and diversification of repressive C2H2 zinc finger proteins. The discovery of intron gain and turnover specific to the Hemiptera also prompted evaluation of lineage and genome size as predictors of gene structure evolution. Furthermore, we identify enzymatic gains and losses that correlate with feeding biology, particularly for reductions associated with derived, fluid-nutrition feeding.ConclusionsWith the milkweed bug, we now have a critical mass of sequenced species for a hemimetabolous insect order and close outgroup to the Holometabola, substantially improving the diversity of insect genomics. We thereby define commonalities among the Hemiptera and delve into how hemipteran genomes reflect distinct feeding ecologies. Given Oncopeltus's strength as an experimental model, these new sequence resources bolster the foundation for molecular research and highlight technical considerations for the analysis of medium-sized invertebrate genomes.

Influence of fisheries on the spatio-temporal feeding ecology of gulls along the western Iberian coast

2020 ◽  
Author(s):  
JG Calado ◽  
SN Veríssimo ◽  
VH Paiva ◽  
R Ramos ◽  
PT Vaz ◽  
...  
Keyword(s):  
Feeding Ecology ◽  
Spatio Temporal

Diet composition and feeding ecology of Nibea albiflora in Xiangshan Bay, east China Sea

2013 ◽  
Vol 20 (6) ◽  
pp. 1284-1292
Author(s):  
Nan LIN ◽  
Yazhou JIANG ◽  
Xingwei YUAN ◽  
Jing GUO ◽  
Jianzhong LING ◽  
...  
Keyword(s):  
East China Sea ◽  
Feeding Ecology ◽  
Diet Composition ◽  
East China ◽  
China Sea ◽  
Xiangshan Bay ◽  
Nibea Albiflora

scholarly journals EVOLUTIONARY TRENDS IN HETEROPTERA

Evolution ◽  
1969 ◽  
Vol 23 (2) ◽  
pp. 357-358
Author(s):  
Herbert H. Ross
Keyword(s):  
Evolutionary Trends
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