@article{fdi:010065323, title = {{C}ryptic speciation in the {T}riatoma sordida subcomplex ({H}emiptera, {R}eduviidae) revealed by chromosomal markers}, author = {{P}anzera, {F}. and {P}ita, {S}. and {N}attero, {J}. and {P}anzera, {Y}. and {G}alvao, {C}. and {C}havez, {T}. and {D}e {A}rias, {A}. {R}. and {T}ellez, {L}. {C}. and {N}oireau, {F}ran{\c{c}}ois}, editor = {}, language = {{ENG}}, abstract = {{B}ackground: {C}hagas disease vectors ({H}emiptera-{R}eduviidae) comprise more than 140 blood-sucking insect species of the {T}riatominae subfamily. {T}he largest genus is {T}riatoma, subdivided in several complexes and subcomplexes according to morphology, ecology and genetic features. {O}ne of them is the sordida subcomplex, involving four species: {T}riatoma sordida, {T}. guasayana, {T}. garciabesi and {T}. patagonica. {G}iven the great morphological similarity of these species, their taxonomic identification, evolutionary relationships and population differentiation have been controversial for many years and even today remain under discussion. {M}ethods: {W}e simultaneously analyzed two chromosomal markers, {C}-heterochromatin distribution and 45{S} ribosomal genes chromosomal position, of 139 specimens from several sordida subcomplex populations from {A}rgentina, {B}olivia, {B}razil and {P}araguay, collected both in nature and from several established insectaries. {O}ur results were compared with {COI} sequences deposited in {G}en{B}ank. {R}esults: {W}e recognized five chromosomal taxa with putative hybrids, which each differ in at least one chromosome marker. {M}ost of them present significant differences in their mt{DNA} sequences. {C}onclusion: {T}he chromosomal taxa here show a significant chromosome differentiation involving changes in the {C}-heterochromatin content and in the ribosomal clusters position. {T}his paper identifies several erroneously classified populations by morphological methods, delimits the geographical distribution of each taxon and proposes the existence of a new cryptic species, widely distributed in {A}rgentina. {W}e also suggest that sordida sibling species involve closely related as well as evolutionary distant species. {T}axonomic status of each chromosomal taxon is discussed considering phenotypic and genetic results previously published.}, keywords = {{S}ordida subcomplex species ; {T}riatominae ; {C}hagas disease vectors ; {C}ryptic species ; {H}olocentric chromosomes ; {FISH} ; {ARGENTINE} ; {BOLIVIE} ; {BRESIL} ; {PARAGUAY}}, booktitle = {}, journal = {{P}arasites and {V}ectors}, volume = {8}, numero = {}, pages = {art. 495 [10 p.]}, ISSN = {1756-3305}, year = {2015}, DOI = {10.1186/s13071-015-1109-6}, URL = {https://www.documentation.ird.fr/hor/fdi:010065323}, }