Effective pollinators of Asian sacred lotus (Nelumbo nucifera): contemporary pollinators may not reflect the historical pollination syndrome

Li, Jiaokun; Huang, Shuang‐Quan

doi:10.1093/aob/mcp173

Cited by 39 publications

(42 citation statements)

References 38 publications

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“…Natural pollination study In this study, the seed-setting rate of the sacred lotus varied from 52-78% under natural conditions, unlike a previous report which gave a seed-setting rate up to 90% 3 . The lotus seed-setting rate markedly varied among cultivars 3,4 .…”

Section: Discussionmentioning

confidence: 64%

“…The lotus seed-setting rate markedly varied among cultivars 3,4 . Many researchers have indicated that the low seed setting in other plants is caused by insufficient pollinators; i.e., pochote (Pachira quinata) 25 , violet (Viola cornuta) 26 , Chinese plums (Prunus salicina) 27 , and lotus (N. nucifera) 3 . Table 2 The self-incompatibility index in RC and NW comparisons of the mean numbers of seed per flower from self-and cross-pollination.…”

Section: Discussionmentioning

confidence: 99%

“…The maternal flowers of 2 days pre-bloom were covered with cheese cloth bags to prevent natural cross-pollination 3 . On the next 2 days (as day 1 of the full bloom), these maternal flowers were emasculated and pollinated with pollen from the paternal parents.…”

Section: Pollen Viability At Different Blooming Stagesmentioning

confidence: 99%

“…A low number of pollen grains on stigma limits the seed-setting rate 25,29 because it reduces the chance for a pollen tube to fertilize an egg 26 , especially in open pollination 27 . It was reported that lotus cultivars with a high seed-setting rate were observed in regions where pollinators were abundant 3 . However, the current study showed a contrasting result.…”

Section: Fully Developed Seed Stunted Seedmentioning

confidence: 99%

“…Low seed setting is a problem in growing lotus 3,4 . Seed setting is limited by pollination mechanisms, such as the abundance of pollinators 3,5 and pollen viability 4,6 . As lotus pollinator in tropical areas are abundant, pollen viability is the next factor to be considered as a cause of low seed setting.…”

Section: Introductionmentioning

confidence: 99%

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Pollen viability, germination, and seed setting of Nelumbo nucifera

Khatfan¹,

Zuo²,

Chen³

et al. 2014

ScienceAsia

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In tropical countries, low seed setting is a major problem when cultivating lotus (Nelumbo nucifera Gaertn.). This study determined seed setting in six wild lotus cultivars: Sai Rung (SR), Sam Roi Yot (SY), Klong Yong, Puttha Monthon (PM), Rachine (RC), and Nakhon Sawan (NW). In nature, the seed-setting rates range from 52-78%. From a stigma removal study, only a 53% seed-setting rate by self-pollination was recorded in the SR cultivar. This result was similar to the seed setting of self-pollinated PM, although high viability of PM pollen from day 2 full bloom flowers was observed. Self-incompatibility was studied in RC and NW cultivars. The indices of self-incompatibility of RC and NW were both 96% indicating that self-incompatibly affects low seed setting in these two cultivars. The results showed that the low seed-setting rate also came from seed abortion. A high value of self-incompatibility was observed in RC and NW cultivars, but not in the other cultivars studied.

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Section: Discussionmentioning

confidence: 64%

Section: Discussionmentioning

confidence: 99%

Section: Pollen Viability At Different Blooming Stagesmentioning

confidence: 99%

Section: Fully Developed Seed Stunted Seedmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Pollen viability, germination, and seed setting of Nelumbo nucifera

Khatfan¹,

Zuo²,

Chen³

et al. 2014

ScienceAsia

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The predictive power of pollination syndromes: Passerine pollination in heterantherous Meriania macrophylla (Benth.) Triana (Melastomataceae)

Valverde-Espinoza

Chacón‐Madrigal

Alvarado-Rodríguez

et al. 2021

Ecology and Evolution

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Geographic isolation, pollination syndromes, and pollinator generalization in HimalayanRoscoeaspp. (Zingiberaceae)

et al. 2019

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The pollination syndromes have been widely used to predict effective pollinators of plant species and provide the mechanistic explanation of floral diversity. However, in recent years, the predictive applicability of pollination syndromes has been frequently questioned. The accuracy of the syndromes among the closely related plant species may vary temporally and spatially. This suggests the need for the standardized, comprehensive evaluation of factors influencing the matching of a pollination syndrome of a plant species to the predominant pollinator community. We studied the pollination biology of three geographically/phenologically isolated alpine gingers (Roscoea auriculata, Roscoea capitata, and Roscoea tumjensis) exhibiting the correlated suites of floral traits that suggest long‐tongued insects as major pollinators, to test for the predictive power of the respective pollination syndrome. We also tested if geographical and temporal isolation affects interspecies breeding system and extent of pollinator generalization. We demonstrate that the three Roscoea species are self‐compatible but lack autonomous selfing, and thus completely rely on pollinators for pollination success. Five years of observations demonstrate that only diurnal insect visitors foraged on the flowers of the three Roscoea species. Estimates of the pollinator importance (pollen deposition) of the observed floral visitors indicate that morphologically mismatched bumblebees contribute more than 90% of pollination service in all the three Roscoea species, while long‐tongued butterflies and moths function as nectar robbers. We found that geographical isolation and temporal variation in flowering period does not affect the breeding system and pollinator generalization in the three Roscoea species. The three geographically and phenologically isolated Himalayan Roscoea spp., with long‐tongued insect pollination syndrome, exhibit generalized pollination system and primarily rely on the morphologically mismatched Bombus species for pollination success. While, for three Roscoea spp., our result suggests that pollination syndromes are a weak predictor of efficient contemporary pollinator community, it also substantiates the role of non‐pollinator agents for the evolution of floral traits. The evolution of Bombus pollination in these alpine gingers suggests how the mismatch between plant and pollinator phenology can lead to the emergence of novel reproductive strategies among the congeners, which ultimately seems to play a key role for the speciation and diversification of the genus Roscoea in the Himalayas.

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Effective pollinators of Asian sacred lotus (Nelumbo nucifera): contemporary pollinators may not reflect the historical pollination syndrome

Abstract: This study indicated that in their pollinating role, beetles, probable pollinators for this thermoregulating plant, had been replaced by some generalist insects in the wild. This finding implies that contemporary pollinators may not reflect the pollination syndrome.

Cited by 39 publications

References 38 publications

Pollen viability, germination, and seed setting of Nelumbo nucifera

Pollen viability, germination, and seed setting of Nelumbo nucifera

The predictive power of pollination syndromes: Passerine pollination in heterantherous Meriania macrophylla (Benth.) Triana (Melastomataceae)

Geographic isolation, pollination syndromes, and pollinator generalization in HimalayanRoscoeaspp. (Zingiberaceae)

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