Background Unravelling the relationship between trichome density and resistance to jassids in upland cotton,nine parental lines,viz.MCU 5,CO 14,CO 17,TCH 1828,KC 2,KC 3,GISV 323,GTHV 15–34,and RHC 1409 were obtained ...Background Unravelling the relationship between trichome density and resistance to jassids in upland cotton,nine parental lines,viz.MCU 5,CO 14,CO 17,TCH 1828,KC 2,KC 3,GISV 323,GTHV 15–34,and RHC 1409 were obtained from the Tamilnadu Agricultural University.These genotypes were subjected to molecular analysis using 27 primers,merely the JESPR 154 primer amplifying a 150-bp fragment in genotypes exhibiting the pubescence.Result This finding validated the association between pubescence and jassid resistance.Further analysis revealed that resistant genotypes(KC 3,GTHV 15–34,GISV 323,and RHC 1409)exhibited significantly higher trichome densities and length compared with susceptible genotypes.These results stalwartly support the hypothesis that trichomes play a pivotal role in conferring resistance to jassids in upland cotton.Conclusion By breeding cotton varieties with increased trichome density and length,it is possible to reduce jassid infestations,thereby decreasing the reliance on chemical pesticides and promoting a more sustainable agricultural environment.展开更多
Cotton fibers are unicellular trichomes derived from outer integument cells of the ovule.Our previously study showed that cotton R2R3 MYB transcript factor GaMYB2 could complement the Arabidopsis trichome mutant of gl...Cotton fibers are unicellular trichomes derived from outer integument cells of the ovule.Our previously study showed that cotton R2R3 MYB transcript factor GaMYB2 could complement the Arabidopsis trichome mutant of glabra1(gl1),suggesting that cotton fiber initiation and Arabidopsis展开更多
Trichome forms and stomatal distribution and types were undertaken. The results show that trichome forms are stellate, peltate and stellate-peltate. There is a difference in the position of stomata among the taxa of H...Trichome forms and stomatal distribution and types were undertaken. The results show that trichome forms are stellate, peltate and stellate-peltate. There is a difference in the position of stomata among the taxa of Hippophae. H. thibetana, H. salici-folia. H. gyantsensis, H. neurocarpa and H. rhamnoides ssp. turkestanica have stomata on both foliar surfaces, while other subspecies have stomata only on the lower surface. Stomata are of the Actinocytic type.展开更多
文摘Background Unravelling the relationship between trichome density and resistance to jassids in upland cotton,nine parental lines,viz.MCU 5,CO 14,CO 17,TCH 1828,KC 2,KC 3,GISV 323,GTHV 15–34,and RHC 1409 were obtained from the Tamilnadu Agricultural University.These genotypes were subjected to molecular analysis using 27 primers,merely the JESPR 154 primer amplifying a 150-bp fragment in genotypes exhibiting the pubescence.Result This finding validated the association between pubescence and jassid resistance.Further analysis revealed that resistant genotypes(KC 3,GTHV 15–34,GISV 323,and RHC 1409)exhibited significantly higher trichome densities and length compared with susceptible genotypes.These results stalwartly support the hypothesis that trichomes play a pivotal role in conferring resistance to jassids in upland cotton.Conclusion By breeding cotton varieties with increased trichome density and length,it is possible to reduce jassid infestations,thereby decreasing the reliance on chemical pesticides and promoting a more sustainable agricultural environment.
文摘Cotton fibers are unicellular trichomes derived from outer integument cells of the ovule.Our previously study showed that cotton R2R3 MYB transcript factor GaMYB2 could complement the Arabidopsis trichome mutant of glabra1(gl1),suggesting that cotton fiber initiation and Arabidopsis
文摘Trichome forms and stomatal distribution and types were undertaken. The results show that trichome forms are stellate, peltate and stellate-peltate. There is a difference in the position of stomata among the taxa of Hippophae. H. thibetana, H. salici-folia. H. gyantsensis, H. neurocarpa and H. rhamnoides ssp. turkestanica have stomata on both foliar surfaces, while other subspecies have stomata only on the lower surface. Stomata are of the Actinocytic type.
