@article{fdi:010060504, title = {{G}enetic investigations on the caffeine and chlorogenic acid relationship in an interspecific cross between {C}offea liberica dewevrei and {C}. pseudozanguebariae}, author = {{K}y, {C}. {L}. and {B}arre, {P}. and {N}oirot, {M}ichel}, editor = {}, language = {{ENG}}, abstract = {{T}he objective of the paper was to identify the number of major loci explaining caffeine content in coffee seeds. {I}nvestigations were based on previously published results: (1) {C}affeine binds to chlorogenic acids in a 1:1 molecular ratio; (2) {B}etween species, the caffeine content is correlated to the chlorogenic acid content; (3) {O}nly a part of chlorogenic acids is bound to caffeine. {E}specially, the content ratio between caffeine and chlorogenic acids varied between species. {F}or identifying the number of major loci, a quantitative trait locus ({QTL}) approach was carried out using an interspecific cross between two highly differentiated species-{C}offea liberica dewevrei and {C}offea pseudozanguebariae, the latter being a caffeine-free species. {A}s main finding, two {QTL}s, i.e., {RCQ}1 and {CQA}1, were identified allowing us to explain up to 97 % of the caffeine content variance. {RCQ}1 explained variation of the caffeine/chlorogenic acid ratio and was genetically independent of the second {QTL}. {T}he latter explained the part of the caffeine content which was dependent on the chlorogenic acid content. {T}he findings also confirmed that only a part of chlorogenic acids were trapped by caffeine, as in wild species.}, keywords = {{C}offea ; {C}hlorogenic acids ; {C}affeine ; {QTL} ; {I}nterspecific cross}, booktitle = {}, journal = {{T}ree {G}enetics and {G}enomes}, volume = {9}, numero = {4}, pages = {1043--1049}, ISSN = {1614-2942}, year = {2013}, DOI = {10.1007/s11295-013-0616-x}, URL = {https://www.documentation.ird.fr/hor/fdi:010060504}, }