Morphology of testis, sperm, and spermatheca in two capable hybridized termite species indicates no interspecific reproductive isolation

Khan, Zahid; Khan, Mian Sayed; Suleman,; Muhammad, Nehaz; Haroon, ​; Su, Xiaoqing; Xing, Lianxi

doi:10.1007/s42690-022-00817-3

Cited by 2 publications

(3 citation statements)

References 82 publications

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“…Most of the workers, except the reproduction, are responsible for sustaining the healthy life of the colony and care. The numbers of individuals in the colony of Reticulitermes termites are the highest, while the soldiers are only responsible for defence and have no feeding ability (Soleymaninejadian et al, 2014;Lillico-Ouachour et al, 2018;Khan et al, 2021a).…”

Section: Termite Morphologymentioning

confidence: 99%

“…There were no important changes in the time of tandem, mating behaviour, or allogrooming at each time between heterospecific partners and conspecific partners. Additionally, genotypic and morphological analyses exposed that interspecific and intraspecific mating was capable to produce offspring (Wu et al, 2019, Khan et al, 2021a. R. aculabialis and R. flaviceps can also be hybrid under laboratory experiments (Khan et al, 2021b).…”

Section: Termite Hybridizationmentioning

confidence: 99%

“…Therefore, termite species have a wide diversity of feeding behaviours, especially they consume cellulose of woods, tree farmings, structural timbers, decompose organic animal matters in different degrees and cause severe losses in the billions of dollars per year due to direct damage and chemical control costs worldwide (Su et al, 2004;Cameron and Whiting, 2007;Ghesini et al, 2011;Lim and Forschler, 2012;Perdereau et al, 2013;Arango et al, 2017;Dutto et al, 2018;Govorushko, 2019;Khan et al, 2019, Khan et al, 2021a. Many gut-associated microorganisms provide essential amino acids to intestines of termite R. flavipes (Fisher et al, 2007;Ayayee et al, 2015;Waidele et al, 2016;Arango et al, 2017), decompose cellulose into nutrients through proper metabolic pathway for both of them and also return nitrogen and carbon to the environment as fertilizers.…”

Section: Introductionmentioning

confidence: 99%

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A comprehensive review on the documented characteristics of four Reticulitermes termites (Rhinotermitidae, Blattodea) of China

Khan

Bawazeer

et al. 2024

Braz. J. Biol.

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Termites are known as social insects worldwide. Presently in China 473 species, 44 genera and 4 families of termites have been reported. Of them, 111 Reticulitermes species are widely spread in different zones of China. The dispersion flight season of these Chinese Reticulitermes species are usually started from February to June, but in some regions different species are distributed, sharing their boundaries and having overlapping flight seasons. These reasons become important sources of hybridization between two different heterospecific populations of termites. It was confirmed that the fertilized eggs and unfertilized eggs of some Reticulitermes termites have the capacity of cleavage. While the unfertilized eggs of R. aculabialis, R. chinensis and R. labralis cleaved normally and the only R. aculabialis unfertilized eggs develop in embryos. While, the R. flaviceps and R. chinensis were observed with their abnormal embryonic development, and not hatching of eggs parthenogenetically. They were reported more threatening to Chinese resources as they propagate with parthenogenesis, hybridization and sexual reproduction. Eggshell and macrophiles of eggs play important roles in species identification and control. Although, they are severe pests and cause a wide range of damages to wooden structures and products in homes, buildings, building materials, trees, crops, and forests in China’s Mainland.

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Section: Termite Morphologymentioning

confidence: 99%

Section: Termite Hybridizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A comprehensive review on the documented characteristics of four Reticulitermes termites (Rhinotermitidae, Blattodea) of China

Khan

Bawazeer

et al. 2024

Braz. J. Biol.

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Embryonic Development of Parthenogenetic and Sexual Eggs in Lower Termites

Peng

Khan

Liu

et al. 2023

Insects

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Worldwide, termites are one of few social insects. In this research, the stages of embryonic development in the parthenogenetic and sexual eggs of Reticulitermes aculabialis and R. flaviceps were observed and described. In R. flaviceps, the egg development of the FF and FM groups happened during the early phases of development, whereas in R. aculabialis, this appeared mainly during the late phase of development. The variance in the number of micropyles between the R. flaviceps FF colony type and the R. aculabialis FF colony type was statistically significant. Five stages of egg development were found in both types of R. aculabialis but only the sexual eggs of R. flaviceps. In R. flaviceps, 86% of the parthenogenetic eggs stopped growing during the blastoderm development, with the yolk cell assembling frequently in the center of the egg. According to the results of the single-cell transcriptome sequencing, we investigated the egg-to-larval expression level of genes (pka, map2k1, mapk1/3, hgk, mkp, and pax6) and indicated that the levels of essential gene expression in RaFF were considerably higher than in RfFF (p < 0.05). We also discovered that the oocyte cleavage rate in the FF colony type was considerably lower in R. flaviceps compared to R. aculabialis, which gave rise to a smaller number of mature oocytes in R. flaviceps. During ovulation in both species, oocytes underwent activation and one or two cleavage events, but the development of unfertilized eggs ceased in R. flaviceps. It was shown that termite oocyte and embryonic development were heavily influenced by genes with significant expressions. Results from the databases KEGG, COG, and GO unigenes revealed the control of numerous biological processes. This study is the first to complete a database of parthenogenetic and sexual eggs of R. flaviceps and R. aculabialis.

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Morphology of testis, sperm, and spermatheca in two capable hybridized termite species indicates no interspecific reproductive isolation

Cited by 2 publications

References 82 publications

A comprehensive review on the documented characteristics of four Reticulitermes termites (Rhinotermitidae, Blattodea) of China

A comprehensive review on the documented characteristics of four Reticulitermes termites (Rhinotermitidae, Blattodea) of China

Embryonic Development of Parthenogenetic and Sexual Eggs in Lower Termites

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