Assessment of Genetic Markers for the Determination of<i>Coptotermes formosanus</i>×<i>Coptotermes gestroi</i>(Isoptera: Rhinotermitidae) F1 Hybrids

Chouvenc, Thomas; Osorio, Stephanie; Chakrabarti, Seemanti; Bahder, Brian W.; Li, Hou-Feng; Su, Nan‐Yao

doi:10.1653/024.100.0325

Cited by 4 publications

(1 citation statement)

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“…Since 2013, simultaneous dispersal flight events were observed in Florida (Chouvenc et al, 2015(Chouvenc et al, , 2017b) and heterospecific mating behavior were observed, as AST males readily initiated tandem with females of FST (Chouvenc et al, 2015). From such pairings, hybrid colonies from the two possible mating combinations (♀AST × ♂FST and ♀FST × ♂AST) were successfully established in the laboratory, showing that there were no pre-zygotic barriers for the production of a viable F 1 hybrid brood (Chouvenc et al, 2015(Chouvenc et al, , 2017a. Hybrid colonies after 1 year of foundation showed relatively high hybrid vigor by displaying faster colony growth compared to colonies founded with conspecific pairs of FST and AST (Chouvenc et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Altered Mobility and Accumulation of Inefficient Workers in Juvenile Hybrid Termite Colonies

et al. 2020

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Hybridization of two different species is an important mechanism to have gene flows between species. Recently, mating of two economically important invasive species of subterranean termites (Coptotermes formosanus and Coptotermes gestroi) have been observed in the field and hybrids colonies have been established in the laboratory. It was previously reported that incipient colonies (~1 year old) of hybrid Coptotermes species contained more termites than colonies of parental species, showing hybrid vigor. In this study, colony vigor and individual termite vigor were investigated in juvenile colonies (~2 year old), using colony growth parameters and the movement activity of individual termites as proxies for the evaluation of hybrid vigor beyond the initial colony foundation. After 2 years from colony foundations, hybrid colonies showed no more hybrid vigor. In addition, movement activity of termites in hybrid colonies was significantly slower than in termites from conspecific colonies. It is suggested that a reduction in the molting rates of individuals in hybrid colonies may have a negative impact on their physiology and their movement activity. These possible changes in physiology may affect the movement of individuals, and accumulation of these inefficient termites in hybrid colonies may contribute to the loss of hybrid vigor at 2 years of age in hybrid colonies.

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Section: Introductionmentioning

confidence: 99%

Altered Mobility and Accumulation of Inefficient Workers in Juvenile Hybrid Termite Colonies

et al. 2020

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Hybrids of two destructive subterranean termites established in the field, revealing a potential for gene flow between species

Chen,

Huang,

Lin

et al. 2024

Heredity

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Hybridization between invasive pest species may lead to signi cant genetic and economic impacts that require close monitoring. The two most invasive and destructive termite species worldwide, Coptotermes formosanus Shiraki and Coptotermes gestroi (Wasmann), have the potential for hybridization in the eld. A three-year eld survey conducted during the dispersal ight season of Coptotermes in Taiwan identi ed alates with atypical morphology, which were con rmed as hybrids of the two Coptotermes species using microsatellite and mitochondrial analyses. Out of 27,601 alates collected over three years, 4.4% were con rmed as hybrid alates, and some advanced hybrids (>F1 generations) were identi ed. The hybrid alates had a dispersal ight season that overlapped with the two parental species 13 out of 15 times.Most of the hybrid alates were female imply that backcross mating opportunities beyond F1 may primarily be possible through female hybrids. However, the incipient colony growth results from all potential mating combinations suggest that only backcross colonies with hybrid males could sometimes lead to brood development. The observed asymmetrical viability and fertility of hybrid alates may critically reduce the probability of advanced-hybrid colonies being established in the eld.

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Taxonomic status ofCoptotermes formosanusand related species

Li,

2023

Biology and Management of the Formosan Subterranean Termite and Related Species

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Assessment of Genetic Markers for the Determination ofCoptotermes formosanus×Coptotermes gestroi(Isoptera: Rhinotermitidae) F1 Hybrids

Cited by 4 publications

References 33 publications

Altered Mobility and Accumulation of Inefficient Workers in Juvenile Hybrid Termite Colonies

Altered Mobility and Accumulation of Inefficient Workers in Juvenile Hybrid Termite Colonies

Hybrids of two destructive subterranean termites established in the field, revealing a potential for gene flow between species

Taxonomic status ofCoptotermes formosanusand related species

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