{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T02:38:34Z","timestamp":1760236714323,"version":"build-2065373602"},"reference-count":38,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2021,12,21]],"date-time":"2021-12-21T00:00:00Z","timestamp":1640044800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003141","name":"Consejo Nacional de Ciencia y Tecnolog\u00eda","doi-asserted-by":"publisher","award":["Beca de Maestr\u00eda"],"award-info":[{"award-number":["Beca de Maestr\u00eda"]}],"id":[{"id":"10.13039\/501100003141","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Insects"],"abstract":"<jats:p>Anastrepha ludens (Diptera: Tephritidae), is a damaging agricultural pest. Currently, the Sterile Insect Technique (SIT) is used as part of its control. The SIT consists of the mass-rearing, sterilization, and release of insects in target areas. Sterile males mate with wild females, and prevent them from laying fertile eggs. However, even if females mate with sterile males, they can then remate with a second male. If this second male is wild, then this could reduce the efficiency of the SIT by producing viable offspring. The amount of progeny produced by second males (P2 values) for A. ludens is unknown. Here, we evaluated the biological attributes, mating competitiveness, and the proportion of male paternity gained by the second male, using strains that carry fluorescent marker genes and can be potentially used to develop transgenic sexing strains. Furthermore, the transgenic strains were irradiated, to test their ability to induce sterility in females. We found that the 443-G strain had significantly higher larval survival than the 419-R strain. No significant difference was found between the two strains in their mating probability with wild females. We found P2 values between 67 and 74% for the 419-R and the 443-G strain, respectively. Second male sperm precedence only decreased slightly after 12 days, suggesting that sperm from the first and second male is not mixing with time, but rather the second male\u2019s sperm prevails. Furthermore, sterile 443-G males induced significantly higher sterility in females than sterile males from the 419-R strain. The apparent lower ability of the 443-G strain to inhibit female remating should be further investigated. Knowledge of the pre and postcopulatory performance of transgenic strains will help in understanding their potential for control.<\/jats:p>","DOI":"10.3390\/insects13010005","type":"journal-article","created":{"date-parts":[[2021,12,21]],"date-time":"2021-12-21T09:50:43Z","timestamp":1640080243000},"page":"5","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Polyandrous Mexican Fruit Flies: Second Male Paternity and Biological Attributes of Transgenic Strains"],"prefix":"10.3390","volume":"13","author":[{"given":"Betzab\u00e9","family":"Ver\u00f3nica-Murrieta","sequence":"first","affiliation":[{"name":"Posgrado en Ciencias Agropecuarias, Facultad de Ciencias Agr\u00edcolas, Universidad Veracruzana, Xalapa 91050, Veracruz, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5178-419X","authenticated-orcid":false,"given":"Jos\u00e9 Salvador","family":"Meza","sequence":"additional","affiliation":[{"name":"Programa Operativo Moscas, SENASICA-SADER\/IICA, Metapa de Dominguez 30860, Chiapas, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5684-2771","authenticated-orcid":false,"given":"Martha L.","family":"Baena","sequence":"additional","affiliation":[{"name":"Instituto de Investigaciones Biol\u00f3gicas, Universidad Veracruzana, Xalapa 91050, Veracruz, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6756-3858","authenticated-orcid":false,"given":"Gerardo","family":"Alvarado-Castillo","sequence":"additional","affiliation":[{"name":"Posgrado en Ciencias Agropecuarias, Facultad de Ciencias Agr\u00edcolas, Universidad Veracruzana, Xalapa 91050, Veracruz, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6804-0346","authenticated-orcid":false,"given":"Diana","family":"P\u00e9rez-Staples","sequence":"additional","affiliation":[{"name":"Instituto de Biotecnolog\u00eda y Ecolog\u00eda Aplicada, Universidad Veracruzana, Xalapa 91050, Veracruz, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2021,12,21]]},"reference":[{"key":"ref_1","unstructured":"Orozco, D., Dom\u00ednguez, J., Reyes, J., Villase\u00f1or, A., and Guti\u00e9rrez, J. 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Dev."}],"container-title":["Insects"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2075-4450\/13\/1\/5\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T07:50:28Z","timestamp":1760169028000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2075-4450\/13\/1\/5"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,12,21]]},"references-count":38,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2022,1]]}},"alternative-id":["insects13010005"],"URL":"https:\/\/doi.org\/10.3390\/insects13010005","relation":{},"ISSN":["2075-4450"],"issn-type":[{"type":"electronic","value":"2075-4450"}],"subject":[],"published":{"date-parts":[[2021,12,21]]}}}