Reproductive isolation between two sympatric bat-pollinated Bauhinia (Leguminosae).
Chiropterophily
Floral morphology
Inter-taxon incompatibility
Nocturnal anthesis
Pollen deposition
Reproductive barriers
Journal
Journal of plant research
ISSN: 1618-0860
Titre abrégé: J Plant Res
Pays: Japan
ID NLM: 9887853
Informations de publication
Date de publication:
22 Nov 2023
22 Nov 2023
Historique:
received:
24
04
2023
accepted:
06
11
2023
medline:
22
11
2023
pubmed:
22
11
2023
entrez:
22
11
2023
Statut:
aheadofprint
Résumé
Several barriers contribute to reproductive isolation between plant species, which can be classified as pre- or post-pollination. Understanding the strength of these barriers could clarify the factors that maintain reproductive isolation and thus species integrity. In this study, we quantified reproductive isolation between two bat-pollinated co-occurring Bauhinia species (B. acuruana and B. pentandra) with similar flower morphology. Over the course of 18 months, we assessed reproductive isolation between these two Bauhinia species by quantifying the individual strengths and absolute contributions of five pre- and post- pollination barriers. Our data showed that both species are completely isolated in their reproduction by a combination of several barriers. Although they co-occur in a few populations, we found a high degree of geographic isolation between them. And although their flowering periods overlap, there is a significant difference in flowering peaks. Both species have the same pollinating bats, but the interspecific transfer of pollen between the plant species may be reduced due to the different length of the flower stamens, resulting in different pollen deposition on the bats' bodies. We have documented complete incompatibility between taxa and conclude that pre- and post-pollination barriers are important factors in preventing gene flow, even in contact zones between these two species of Bauhinia. We highlight that our work is the first study to use methods to estimate the strength of reproductive isolation barriers between bat-pollinated species.
Identifiants
pubmed: 37991585
doi: 10.1007/s10265-023-01508-x
pii: 10.1007/s10265-023-01508-x
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Subventions
Organisme : Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
ID : PROEX-0487
Organisme : Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
ID : 001
Organisme : Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
ID : 88887.898666/2023-00
Organisme : Conselho Nacional de Desenvolvimento Científico e Tecnológico
ID : 459485/2014-8
Organisme : Conselho Nacional de Desenvolvimento Científico e Tecnológico
ID : , 437424/2018-9
Organisme : Conselho Nacional de Desenvolvimento Científico e Tecnológico
ID : LTER-Catimbau 403770/2012-2
Organisme : Conselho Nacional de Desenvolvimento Científico e Tecnológico
ID : 311021/2014-0
Organisme : Conselho Nacional de Desenvolvimento Científico e Tecnológico
ID : 310508/2019-3
Organisme : Conselho Nacional de Desenvolvimento Científico e Tecnológico
ID : 309505/2018-6
Organisme : Conselho Nacional de Desenvolvimento Científico e Tecnológico
ID : 306286/2022-0
Informations de copyright
© 2023. The Author(s) under exclusive licence to The Botanical Society of Japan.
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