On the identity of Labronema baqrii Khan, Jairajpuri and Ahmad, 1989 (Nematoda, Dorylaimida) and analysis of the relationships between the genera Labronema Thorne, 1939 and Talanema Andrássy, 1991
2021
Imran, Zarrin | Abolafia, Joaquín | Ahmad, Wasim
Nematodes are among the most successful and diverse taxa in the animal kingdom, combine endless variation with a deceptively conserved anatomical pattern. Nematodes representing the Order Dorylaimida show K-strategies i.e. having a long life-cycle, low reproduction rate, low colonization ability and are sensitive to disturbance and usually live in a habitat with long durational stability, dominate both in number and species, over other soil-inhabiting nematodes. Andrássy while revising the family Qudsianematidae Jairajpuri, 1965 proposed the genus Talanema Andrássy, 1991 for Labronema Thorne, 1939 species having transverse vulva, subdigitate tail and non-contiguous ventromedian supplements. After almost three decades, the genus is still in need of scientific attention as the addition of new species and transfer of previously described Labronema species make a continuum between the Labronema and Talanema species. In the present work, a pure population of Labronema baqrii Khan, Jairajpuri & Ahmad, 1989 represented by males, females and juveniles isolated from cattle manure from Aligarh, Uttar Pradesh was studied. Herein, we transfer L. baqrii to Talanema and sought to clarify their relationship through molecular and morphological characterization of Talanema baqrii (Khan, Jairajpuri & Ahmad 1989) comb. n. along with the analysis of Labronema species with transverse vulva; conoid, rounded or digitate tail and non-contiguous ventromedian supplements.
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