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High herkogamy but low reciprocity characterizes isoplethic populations of Jasminum malabaricum , a species with stigma‐height dimorphism

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dc.contributor.author GANGULY, S. en_US
dc.contributor.author BARUA, DEEPAK en_US
dc.date.accessioned 2020-06-26T05:09:46Z
dc.date.available 2020-06-26T05:09:46Z
dc.date.issued 2020-06 en_US
dc.identifier.citation Plant Biology, 22(5). en_US
dc.identifier.issn 1435-8603 en_US
dc.identifier.issn 1438-8677 en_US
dc.identifier.uri http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/4847
dc.identifier.uri https://doi.org/10.1111/plb.13127 en_US
dc.description.abstract Studies of floral polymorphisms have focused on heterostyly, while stigma‐height dimorphism has received considerably less attention. Few studies have examined the reproductive biology of species with stigma‐height dimorphism to understand how factors influencing mate availability and pollen transfer are related to morph ratios in populations. Floral morphological traits, especially herkogamy and reciprocity, pollinator visitation, breeding system and spatiotemporal mate availability, are known to affect inter‐morph pollination and morph ratios in species with stigma‐height dimorphism. In this study, we investigated the presence of stigma‐height dimorphism and estimated morph ratios in four naturally occurring populations of Jasminum malabaricum. We quantified morph‐ and population‐specific differences in the abovementioned factors in these populations to understand the observed morph ratios. The positions of anthers and stigmas were characteristic of stigma‐height dimorphism, the first report of this polymorphism in the genus. All study populations were isoplethic, implying equal fitness of both morphs. Herkogamy was higher in the short‐styled morph, while reciprocity was higher between the long‐styled stigma and short‐styled anthers. Long‐ and short‐tongued pollinators were common floral visitors, and we observed no differences between morphs in spatiotemporal mate availability or pollinator visitation. Neither morph exhibited self‐ or heteromorphic incompatibility. The short‐styled stigma had lower reciprocity but likely receives sufficient inter‐morph pollen from long‐tongued pollinators, and also by avoiding self‐pollination due to higher herkogamy. These results highlight the importance of sufficient effective pollinators and floral morphological features, particularly herkogamy, in maintaining isoplethy in species with stigma‐height dimorphism. en_US
dc.language.iso en en_US
dc.publisher Wiley en_US
dc.subject Style length polymorphism en_US
dc.subject Morph ratio en_US
dc.subject Floral traits en_US
dc.subject Mate availability en_US
dc.subject Pollinators en_US
dc.subject Breeding system en_US
dc.subject TOC-JUN-2020 en_US
dc.subject 2020 en_US
dc.subject 2020-JUN-WEEK4 en_US
dc.title High herkogamy but low reciprocity characterizes isoplethic populations of Jasminum malabaricum , a species with stigma‐height dimorphism en_US
dc.type Article en_US
dc.contributor.department Dept. of Biology en_US
dc.identifier.sourcetitle Plant Biology en_US
dc.publication.originofpublisher Foreign en_US


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