The Ephemeroptera (Hexapoda, Insecta) from the Lower Cretaceous Crato Formation (NE Brazil): a new genus and species, and reassessment of Costalimella zucchii Zamboni, 2001 and Cratogenites corradiniae Martins-Neto, 1996

Brandão, Natália C.A.; Bittencourt, Jonathas S.; Calor, Adolfo R.; Mendes, Márcio; Langer, Max C.

doi:10.1016/j.cretres.2021.104923

Cited by 9 publications

(1 citation statement)

References 33 publications

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“…This insect group is an archaic lineage that was present at the end of the Paleozoic during the late Carboniferous or early Permian (Misof et al 2014;Sartori and Brittain 2015). However, the Cretaceous fossil mayflies have been increasingly documented from all continents except Antarctica, due to their abundance in the period (Brandão et al 2021). Since they are hemimetabolous insects, their life cycle undergoes incomplete metamorphosis and consists of a well-defined aquatic nymphal phase and two terrestrial phases (Almudi et al 2019).…”

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confidence: 99%

Genetic diversity and phylogenetic analysis of mayfly Caenis (Insecta: Ephemeroptera) using Cytochrome C Oxidase I (COI) and 12s rRNA genes from Thailand

2023

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Abstract. Prakrongrak N, Boonsoong B, Monthatong M. 2023. Genetic diversity and phylogenetic analysis of mayfly Caenis (Insecta: Ephemeroptera) using Cytochrome C Oxidase I (COI) and 12s rRNA genes from Thailand. Biodiversitas 24: 1989-1997. Mayflies in genus Caenisis one of the top fifth species richnessbelonged to Family Caenidae. The present study aimed to use the partial mitochondrial Cytochrome COxidase subunit I (COI) and 12s rRNA nucleotide sequences for molecular species identification, diversity and phylogenetic relationships of mayflies in genus Caenis Stephens, 1835 species from Thailand. From a total of 37 specimens, thirteen nymphs were morphologically identified into five species: Caenis nasuta Malzacher, C. Picea Kimmins, C. ulmeriana Malzacher, C. cornigera Kang and Yang and C. longiforcipata Malzacher. The other 24 samples were Caenis sp.1 to sp.5. Partial COI sequences of all samples were compared with BOLD and GenBank for species identification. However, the result showed only genus-level identification as Caenis with greater than 80% similarity. For species delimitation, interspecific genetic distance among these species ranged from 14.4 to 26.6% (COI) and from 7.36 to 22.4% (12s rRNA). Intraspecific divergence levels were 0.0% to 2.35%. ABGD analysis of both genes divided data into 10 groups corresponding to 10 morphospecies of Caenis. The phylogenetic relationships of Caenis, COI and 12s rRNA genes also classified each species to well supported clusters. In addition, we report C. cornigera from Thailand for the first time. The COI and 12s rRNA phylogenetic trees indicate a close relationship between C. cornigera and C. longiforcipata, which is supported by their similar morphology.

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