Shared Transcriptional Control and Disparate Gain and Loss of Aphid Parasitism Genes

Genome Biology and Evolution
Peter ThorpeJ I B Bos

Abstract

Aphids are a diverse group of taxa that contain agronomically important species, which vary in their host range and ability to infest crop plants. The genome evolution underlying agriculturally important aphid traits is not well understood. We generated draft genome assemblies for two aphid species: Myzus cerasi (black cherry aphid) and the cereal specialist Rhopalosiphum padi. Using a de novo gene prediction pipeline on both these, and three additional aphid genome assemblies (Acyrthosiphon pisum, Diuraphis noxia, and Myzus persicae), we show that aphid genomes consistently encode similar gene numbers. We compare gene content, gene duplication, synteny, and putative effector repertoires between these five species to understand the genome evolution of globally important plant parasites. Aphid genomes show signs of relatively distant gene duplication, and substantial, relatively recent, gene birth. Putative effector repertoires, originating from duplicated and other loci, have an unusual genomic organization and evolutionary history. We identify a highly conserved effector pair that is tightly physically linked in the genomes of all aphid species tested. In R. padi, this effector pair is tightly transcriptionally linked and shar...Continue Reading

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Citations

Aug 21, 2019·GigaScience·Xin JiangJulian Chen
Mar 16, 2019·Bioinformatics·Zebulun ArendseeEve Syrkin Wurtele
Apr 7, 2019·GigaScience·Wenbo ChenGeorg Jander
Jan 24, 2020·G3 : Genes - Genomes - Genetics·Thomas C Mathers
Jan 29, 2020·Journal of Experimental Botany·Carmen Escudero-MartinezJorunn I B Bos
Jun 6, 2020·Frontiers in Plant Science·Jacob R MacWilliamsIsgouhi Kaloshian
Oct 3, 2020·G3 : Genes - Genomes - Genetics·Thomas C MathersLeena Tripathi
Aug 8, 2021·Biochemical and Biophysical Research Communications·Zhen WangHansong Dong
Dec 9, 2021·G3 : Genes - Genomes - Genetics·Stephen ByrneLouise McNamara

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