caa a22 4500 445845295 CHVBK 20180317145357.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1007/s10709-011-9625-6 doi (NATIONALLICENCE)springer-10.1007/s10709-011-9625-6 Genetic variation in a female genital trait evolved by sexual coevolution [Elektronische Daten] [Georgina Jiménez Ambriz, Diana Mota, Carlos Cordero] Understanding the patterns of genetic variation of traits subject to sexual selection is fundamental for explaining its evolutionary dynamics and potential for sexual coevolution. The signa of female Lepidoptera are sclerotized structures located on the inner surface of the genital receptacle that receives the spermatophore during copulation (the corpus bursae), whose main function is tearing the spermatophore envelope. Comparative data indicate that the evolution of signa has been influenced by sexually antagonistic coevolution with spermatophore envelopes. We looked for additive genetic variation in the size and shape of signa in females of the butterfly Callophrys xami (Lycaenidae) from two localities (BG and FC) in Mexico City. We also looked for genetic variation in female body size and in the size of corpus bursae. There were significant between-population differences in female body size, signa width and three signa shape traits. We found significant extranuclear maternal effects in one component of signa shape in the BG population, and in body weight, signa length and in one uniform component of signa shape in the FC population. Extranuclear maternal contributions could permit the evolution of female adaptations even if these reduce male fitness. We found additive genetic variation in signa length and width only in one population (BG); heritability estimates were high: 0.96 and 0.8, respectively. The existence of additive genetic variation in signa size could be, at least in part, a result of relaxed sexually antagonistic selection pressures due to the low level of polyandry exhibited by this species. Our results imply that there is currently potential for further sexual coevolution in this trait. Springer Science+Business Media B.V., 2012 Female genitalia nationallicence Heritability nationallicence Sexual selection nationallicence Lepidoptera nationallicence Jiménez Ambriz Georgina Departamento de Ecología Evolutiva, Instituto de Ecología, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, Apdo. Post. 70-275, 04510, Coyoacán, DF, Mexico aut Mota Diana Carrera de Biología, Facultad de Ciencias, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510, Coyoacán, DF, Mexico aut Cordero Carlos Departamento de Ecología Evolutiva, Instituto de Ecología, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, Apdo. Post. 70-275, 04510, Coyoacán, DF, Mexico aut Genetica Springer Netherlands 139/10(2011-10-01), 1241-1249 0016-6707 139:10<1241 2011 139 10709 https://doi.org/10.1007/s10709-011-9625-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10709-011-9625-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Jiménez Ambriz Georgina Departamento de Ecología Evolutiva, Instituto de Ecología, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, Apdo. Post. 70-275, 04510, Coyoacán, DF, Mexico aut NATIONALLICENCE 700 1- Mota Diana Carrera de Biología, Facultad de Ciencias, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510, Coyoacán, DF, Mexico aut NATIONALLICENCE 700 1- Cordero Carlos Departamento de Ecología Evolutiva, Instituto de Ecología, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, Apdo. Post. 70-275, 04510, Coyoacán, DF, Mexico aut NATIONALLICENCE 773 0- Genetica Springer Netherlands 139/10(2011-10-01), 1241-1249 0016-6707 139:10<1241 2011 139 10709 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer