Reproductive incompatibility and fitness components in Neoleucinodes elegantalis races (Lepidoptera, Crambidae) from three Solanaceae hosts
Neoleucinodes elegantalis (Lepidoptera, Crambidae) is a Neotropical Solanaceae pest that has evolved into four host races due to host plant association. In this study, prezygotic and postzygotic isolation were evaluated in parental and F1 generations collected from Solanum lycopersicum (S. l), S. qu...
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| Format: | Article |
| Language: | English |
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Universidad Nacional de Colombia
2018-07-01
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| Series: | Caldasia |
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| Online Access: | https://revistas.unal.edu.co/index.php/cal/article/view/67241 |
| _version_ | 1818260035165224960 |
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| author | Ana Elizabeth Díaz-Montilla Nathalie Baena-Bejarano Clara Ines Saldamando James Montoya-Lerma |
| author_facet | Ana Elizabeth Díaz-Montilla Nathalie Baena-Bejarano Clara Ines Saldamando James Montoya-Lerma |
| author_sort | Ana Elizabeth Díaz-Montilla |
| collection | DOAJ |
| description | Neoleucinodes elegantalis (Lepidoptera, Crambidae) is a Neotropical Solanaceae pest that has evolved into four host races due to host plant association. In this study, prezygotic and postzygotic isolation were evaluated in parental and F1 generations collected from Solanum lycopersicum (S. l), S. quitoense (S. q) and S. betaceum (S. b), representing medium size (S. l, S. q) and large size genitalia races (S. b). 617 adults were obtained in the laboratory and 106 copulated. One spermatophore per female was found in the bursa copulatrix, suggesting monoandry. Crosses between adults mostly occurred assortatively. A third of the female’s eggs laid occurred, but females from ♀S. b x ♂ S. l, ♀S. l x ♂S. b and S. l x S. l did not. In the cross, ♀S. l x ♂ S. q and its reciprocal F1 progeny developed into larvae. Reproductive success only occurred in three crosses: S. q x S. q, ♀ S. q x ♂ S. b and its reciprocal progeny. All the progeny from these crosses reached adulthood. The parental population showed differences in pupae and adult measurements according to host. The results on reproductive isolation obtained here suggest speciation in N. elegantalis due to host race differentiation which is relevant for the improvement of the management of this species, especially when the species has evolved reproductive isolation among races. We suggest that the use of their host plants in sympatry might reduce N. elegantalis densities in the field since hybrids between its races have low survival rates and to evaluate the possibility of pheromone composition differentiation among races given the results on assortative mating obtained here. |
| first_indexed | 2024-12-12T18:24:56Z |
| format | Article |
| id | doaj.art-0b3f2f41916f4c6fb1ae9daf1b6f061c |
| institution | Directory Open Access Journal |
| issn | 0366-5232 2357-3759 |
| language | English |
| last_indexed | 2024-12-12T18:24:56Z |
| publishDate | 2018-07-01 |
| publisher | Universidad Nacional de Colombia |
| record_format | Article |
| series | Caldasia |
| spelling | doaj.art-0b3f2f41916f4c6fb1ae9daf1b6f061c2022-12-22T00:16:02ZengUniversidad Nacional de ColombiaCaldasia0366-52322357-37592018-07-0140219921510.15446/caldasia.v40n2.6724148678Reproductive incompatibility and fitness components in Neoleucinodes elegantalis races (Lepidoptera, Crambidae) from three Solanaceae hostsAna Elizabeth Díaz-Montilla0Nathalie Baena-Bejarano1Clara Ines Saldamando2James Montoya-Lerma3Corporación Colombiana de Investigación Agropecuaria (AGROSAVIA), Centro de Investigación Obonuco, Nariño, Colombia.lllinois Natural History Survey & Department of Entomology, University of Illinois at Urbana Champaign, 1816 South Oak Street, Champaign, Illinois 61820–6960, USA.Universidad Nacional de Colombia Sede MedellínDepartamento de Biología, Universidad del Valle, Avenida Pasoancho No 100-00, Campus de Meléndez, A.A. 25360, Santiago de Cali-ColombiaNeoleucinodes elegantalis (Lepidoptera, Crambidae) is a Neotropical Solanaceae pest that has evolved into four host races due to host plant association. In this study, prezygotic and postzygotic isolation were evaluated in parental and F1 generations collected from Solanum lycopersicum (S. l), S. quitoense (S. q) and S. betaceum (S. b), representing medium size (S. l, S. q) and large size genitalia races (S. b). 617 adults were obtained in the laboratory and 106 copulated. One spermatophore per female was found in the bursa copulatrix, suggesting monoandry. Crosses between adults mostly occurred assortatively. A third of the female’s eggs laid occurred, but females from ♀S. b x ♂ S. l, ♀S. l x ♂S. b and S. l x S. l did not. In the cross, ♀S. l x ♂ S. q and its reciprocal F1 progeny developed into larvae. Reproductive success only occurred in three crosses: S. q x S. q, ♀ S. q x ♂ S. b and its reciprocal progeny. All the progeny from these crosses reached adulthood. The parental population showed differences in pupae and adult measurements according to host. The results on reproductive isolation obtained here suggest speciation in N. elegantalis due to host race differentiation which is relevant for the improvement of the management of this species, especially when the species has evolved reproductive isolation among races. We suggest that the use of their host plants in sympatry might reduce N. elegantalis densities in the field since hybrids between its races have low survival rates and to evaluate the possibility of pheromone composition differentiation among races given the results on assortative mating obtained here.https://revistas.unal.edu.co/index.php/cal/article/view/67241Assortative matingcopulahost plant associationreproductive isolationspeciationtomato fruit borer |
| spellingShingle | Ana Elizabeth Díaz-Montilla Nathalie Baena-Bejarano Clara Ines Saldamando James Montoya-Lerma Reproductive incompatibility and fitness components in Neoleucinodes elegantalis races (Lepidoptera, Crambidae) from three Solanaceae hosts Caldasia Assortative mating copula host plant association reproductive isolation speciation tomato fruit borer |
| title | Reproductive incompatibility and fitness components in Neoleucinodes elegantalis races (Lepidoptera, Crambidae) from three Solanaceae hosts |
| title_full | Reproductive incompatibility and fitness components in Neoleucinodes elegantalis races (Lepidoptera, Crambidae) from three Solanaceae hosts |
| title_fullStr | Reproductive incompatibility and fitness components in Neoleucinodes elegantalis races (Lepidoptera, Crambidae) from three Solanaceae hosts |
| title_full_unstemmed | Reproductive incompatibility and fitness components in Neoleucinodes elegantalis races (Lepidoptera, Crambidae) from three Solanaceae hosts |
| title_short | Reproductive incompatibility and fitness components in Neoleucinodes elegantalis races (Lepidoptera, Crambidae) from three Solanaceae hosts |
| title_sort | reproductive incompatibility and fitness components in neoleucinodes elegantalis races lepidoptera crambidae from three solanaceae hosts |
| topic | Assortative mating copula host plant association reproductive isolation speciation tomato fruit borer |
| url | https://revistas.unal.edu.co/index.php/cal/article/view/67241 |
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