01861nas a2200229   4500008004100000022001400041245014200055210006900197260007400266300001000340490000800350520093200358653002901290653002401319653002801343653002601371653003501397100002101432700002601453700002601479856012601505       2015                        eng d  a0016-670700aMale biased gene flow in banana pseudostem weevil (Odoiporus longicollis Oliver) as revealed by analysis of the COI-tRNA(Leu) COII region0 aMale biased gene flow in banana pseudostem weevil Odoiporus long  aVAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDSbSPRINGERcFEB  a85-920 v1433 a<p>The genetic diversity amongst thirty weevils representing six Indian populations of banana pseudostem weevil i.e. Odoiporus longicollis (Oliver) was estimated by sequence analysis of the partial COI-tRNA(Leu)-COII region. The sequences exhibited AT bias typical of insect mitochondrial DNA which was highest in the first codon position of COI and in the third codon position of COII. There was no phylogeographic distribution of the populations. The Fu and Li's D and F tests were non-significant for this mitochondrial region. No Wolbachia infection was detected in any of the populations. The genetic differentiation amongst the populations was highly significant (p &lt; 0.001; chi(2) = 123.333; df = 75), suggesting restricted gene flow between the populations. This result did not correlate with that obtained with nuclear rDNA markers i.e. ITS1 and ITS2, suggesting a male biased gene flow between the populations.</p>10aBanana pseudostem weevil10aCOI-tRNA(Leu) -COII10aGenetic differentiation10aMale biased gene flow10aOdoiporus longicollis (Oliver)1 aShankar, Pallavi1 aKulkarni, Vishvas, M.1 aKumar, Lalitha, Sunil  uhttps://library.ncl.res.in/content/male-biased-gene-flow-banana-pseudostem-weevil-odoiporus-longicollis-oliver-revealed-001801nas a2200169   4500008004100000022001400041245015800055210006900213260000800282300001300290490000700303520112700310100002601437700002101463700002601484856012101510       2018                        eng d  a1742-758400aAnalyses of the internal transcribed rDNA spacers (ITS1 and ITS2) of Indian weevils of Odoiporus longicollis (Olivier) reveal gene flow between locations0 aAnalyses of the internal transcribed rDNA spacers ITS1 and ITS2   cDEC  a313-329 0 v383 aAn important step towards developing a successful integrated pest management (IPM) programme for the control of banana pseudostem weevil, Odoiporus longicollis (Olivier), a serious pest of banana in India, is the study of the population structure of the pest. In the present study, the genetic variation among 30 individual weevils of O. longicollis collected from six different locations was assessed by analysing the primary nucleotide sequences of the rDNA ITS1 and ITS2 regions. AMOVA, Mantel test, and the maximum likelihood trees of the haplotypes failed to reveal any phylogeographic structuring, which was confirmed by haplotype analysis and genetic differentiation estimates. The results indicate that the locations are not differentiated, i.e. there is gene flow between the locations. The star-shaped networks revealed a signature of demographic expansion that was confirmed by the different demographic tests. These results provide important information, which is essential for the development of suitable strategies for the control of this banana pest, as well as management of its resistance to insecticides.1 aKumar, Lalitha, Sunil1 aShankar, Pallavi1 aKulkarni, Vishvas, M.  uhttps://library.ncl.res.in/content/analyses-internal-transcribed-rdna-spacers-its1-and-its2-indian-weevils-odoiporus