A Molecular Biogeographic Analysis of the Relationship between North American Melanoploid Grasshoppers and Their Eurasian and South American Relatives

Chapco, W.; Litzenberger, G.; Kuperus, W. R.

doi:10.1006/mpev.2000.0902

Cited by 38 publications

(24 citation statements)

References 51 publications

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“…Fossil record shows that the Oedipodinae subfamily is at least 15 million years old (see Stidham and Stidham 2000). In fact, the age of the Oedipodinae subfamily has been estimated to be about 120 million years by mtDNA molecular phylogenetic analysis (Chapco et al 2001) and also by the association between geographical distribution of Acrididae subfamilies and the age of particular tectonic events (Jago 1983). The absence of differences in chromosome location for H3-H4 histone genes among oedipodine species indicates an extremely high conservatism of this trait in this old grasshopper subfamily, and provides strong support to B chromosome ancestry from chromosome 8, since the most simple explanation for the presence of a cluster of Fig.…”

Section: Discussionmentioning

confidence: 98%

B chromosome ancestry revealed by histone genes in the migratory locust

et al. 2009

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In addition to the standard set of chromosomes (A), about 15% of eukaryote genomes carry B chromosomes. In most cases, B chromosomes behave as genomic parasites being detrimental for the individuals carrying them and prospering in natural populations because of transmission advantages (drive). B chromosomes are mostly made up of repetitive DNA sequences, especially ribosomal DNA (rDNA), satellite DNA and mobile elements. In only two cases have B chromosomes been shown to carry protein-coding genes. Although some B chromosomes seem to have derived from interspecific hybridisation, the most likely source of B chromosomes is the host genome itself, but the specific A chromosome being the B ancestor has not been identified in any B-containing species. Here, we provide strong evidence for B chromosome ancestry in the migratory locust, based on the location of genes for the H3 and H4 histones in the B chromosome and a single A chromosome pair (i.e. the eighth in order of decreasing size). The high DNA sequence similarity of A and B chromosome H3-H4 genes supports B-origin from chromosome 8. The higher variation shown by B sequences, compared to A sequences, suggests that B chromosome sequences are most likely inactive and thus less subjected to purifying selection. Estimates of time of divergence for histone genes from A and B chromosomes suggest that B chromosomes are quite old (>750,000 years), showing the B-chromosome ability to persist in natural populations for long periods of time.

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Section: Discussionmentioning

confidence: 98%

B chromosome ancestry revealed by histone genes in the migratory locust

et al. 2009

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“…Cox1 is the most conserved gene in terms of amino acid evolution. In the past, coxl, cox2, cytb, and nad2 were extensively used for phylogenetic analyses (Liu and Beckenbach 1992;Simon et al 1994;Caterino et al 2000;Chapco et al 2001;Litzenberger and Chapco 2001;Chapco and Litzenberger 2002;Amédégnato et al 2003). Cox2 is the most widely used mitochondrial protein-coding gene in insects (Simon et al 1994).…”

Section: Phylogenetic Analyses In This Studymentioning

confidence: 99%

The phylogeny of the Orthoptera (Insecta) as deduced from mitogenomic gene sequences

Zhang

Huang

et al. 2013

Zool. Stud.

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Background: The phylogeny of the Orthoptera was analyzed based on 6 datasets from 47 orthopteran mitochondrial genomes (mitogenomes). The phylogenetic signals in the mitogenomes were rigorously examined under analytical regimens of maximum likelihood (ML) and Bayesian inference (BI), along with how gene types and different partitioning schemes influenced the phylogenetic reconstruction within the Orthoptera. The monophyly of the Orthoptera and its two suborders (Caelifera and Ensifera) was consistently recovered in the analyses based on most of the datasets we selected, regardless of the optimality criteria.

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“…The first one was by Chapco et al (2001), which included only 10 melanoplines from North America and Eurasia and did not include any member of Dactylotini. The second one, by Amédégnato et al (2003), focused on the biogeographic origin of the subfamily, but, again, did not include any Dactylotini.…”

Section: Introductionmentioning

confidence: 99%

Studies in Mexican Grasshoppers: Liladownsia fraile, a new genus and species of Dactylotini (Acrididae: Melanoplinae) and an updated molecular phylogeny of Melanoplinae

Woller

Fontana

Mariño‐Pérez

et al. 2014

Zootaxa

1,000

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Liladownsia fraile gen. nov. sp. nov. Fontana, Mariño-Pérez, Woller & Song (Lila Downs' friar grasshopper) of the tribe Dactylotini (Orthoptera: Acrididae: Melanoplinae) is described from the pine-oak forest of the Sierra Madre del Sur Mountain Range in Oaxaca, Mexico. Taxonomic placement of this new genus is justified based on morphological characters as well as a molecular phylogeny. Information about the probable host plant, phenology, and known localities is also presented. We also present an updated molecular phylogeny of Melanoplinae, which includes representatives of five of the seven recognized tribes. The monophyly of the subfamily and the included tribes is tested and we find Dactylotini to be paraphyletic because of the placement of Hesperotettix Scudder, 1876. We also recover strong close relationships between the new genus and Perixerus Gerstaecker, 1873 and Dactylotum Charpentier, 1845.

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A Molecular Biogeographic Analysis of the Relationship between North American Melanoploid Grasshoppers and Their Eurasian and South American Relatives

Cited by 38 publications

References 51 publications

B chromosome ancestry revealed by histone genes in the migratory locust

B chromosome ancestry revealed by histone genes in the migratory locust

The phylogeny of the Orthoptera (Insecta) as deduced from mitogenomic gene sequences

Studies in Mexican Grasshoppers: Liladownsia fraile, a new genus and species of Dactylotini (Acrididae: Melanoplinae) and an updated molecular phylogeny of Melanoplinae

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