Pollination Syndromes of Chinese Gesneriaceae: a Comparative Study between Hainan Island and Neighboring Regions

Ling, Shao-Jun; Meng, Qian-Wan; Tang, Liang; Ren, Ming‐Xun

doi:10.1007/s12229-017-9181-6

Cited by 12 publications

(19 citation statements)

References 32 publications

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“…Previous studies have indicated that pollen limitation was common in angiosperm species [29][30][31] and in some Gesnerioideae species found in karst regions with restricted geographical distribution [15,17,[19][20]32]. In the present study, pollination experiments showed that there were significant differences in the number of fruit sets between open-pollinated samples and artificially fertilized flowers (both cross-and self-pollination), suggesting that the population investigated experiences a degree of pollen limitation.…”

Section: Discussion Of Resultssupporting

confidence: 47%

“…Additionally, five flowers were collected at each observation time to provide material for pollen viability and stigma receptivity testing. Observations and tests were conducted on this site between October 16 and November 15,2006, and repeated between October 21 and November 20, 2008. Pollen grains were stained with dimethylthiazol diphenyl tetrazolium bromide to test for the presence of dehydrogenase as an indicator of pollen viability.…”

Section: Flowering Process and Flower Visitationmentioning

confidence: 99%

mentioning

confidence: 99%

“…Gesneriaceae is a highly abundant and diverse plant family in China; it contains a reported 59 (27 endemic) genera and 460 (375 endemic) species [15]. Flowers in this family are highly diversified, reflecting adaptation to a wide range of pollinators including bees, birds, and bats [15][16][17][18]. Although widespread research has been conducted on the reproductive biology of Gesneriaceae [17][18][19][20], little is known about the pollination biology of endangered species in this family from China, where more than half the species exist in a restricted geographical area.…”

mentioning

confidence: 99%

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Pollination Biology of Hemiboea ovalifolia (Gesneriaceae), an Endangered Herb from Guangxi, China

Pu¹,

Pan²,

Chen³

et al. 2019

Pol. J. Environ. Stud.

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Information on the biology of rare species and those with restricted geographical ranges is crucial for predicting their reproductive success, understanding their population dynamics, and suggesting appropriate conservation measures [1][2][3]. As one of the key contributing factors of a species becoming endangered, the plant breeding system has received the most widespread attention and can vary according to species distribution [4]. In general, both the direct and indirect changes in habitat fragmentation can threaten the survival of endangered plants by reducing potential habitat and population viability, or disrupting plant pollinator interactions [1,[5][6]. However, small and isolated plant populations have been one of the problems that scientists have been arguing about for a long time [7-8]. AbstractAlthough information on the reproductive biology of the endangered plant family Gesneriaceae is well known, the pollination mechanisms of these plants in karst regions are poorly understood. This study demonstrated the flowering phenology, pollinators, and breeding system of Hemiboea ovalifolia in karst regions. Findings revealed that the anthesis of H. ovalifolia often occurred late, during sunset, or early morning, with duration of 2-4 days; there was a certain level of temporal overlap between pollen viability and stigma receptivity; the most effective pollinators were Bombus ignitus and Anthophora zonata. Controlled pollination indicated that these plants were pollen limited and exhibited late-acting inbreeding depression resulting from the seed sets; there were significant differences in fruit sets between open-pollination and self-pollination or cross pollination, and in seed sets between self-pollination and cross-pollination or open-pollination. Despite the co-existence of large numbers of fruit and seed sets, and vegetative propagation in H. ovalifolia, a failure in seedling survival, and long duration to establishing first-year seedlings in natural populations suggests that the species does not easily recover from damage.

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Section: Discussion Of Resultssupporting

confidence: 47%

Section: Flowering Process and Flower Visitationmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Pollination Biology of Hemiboea ovalifolia (Gesneriaceae), an Endangered Herb from Guangxi, China

Pu¹,

Pan²,

Chen³

et al. 2019

Pol. J. Environ. Stud.

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“…Yingge (1812 m). Xing (2012) and Ling et al (2017) identified 14 genera and 23 species of Gesneriaceae on Hainan Island, amongst which two genera (Metapetrocosmea W.T. Wang and Cathayanthe Chun) and eight species (including one variety) are endemic (Ling et al 2017;Jiang et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Genetic delimitation of Oreocharis species from Hainan Island

Ling¹,

Qin²,

Song³

et al. 2020

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Hainan Island harbours an extraordinary diversity of Gesneriaceae with 14 genera and 23 species, amongst which two species and one variety are recognised in the genus Oreocharis. These three Oreocharis taxa are all Hainan-endemics and show a complex geographical distribution pattern with considerable morphological intermixtures. In this study, we combined DNA (nuclear ITS sequences and cpDNAtrnL-trnF and ycf1b) to evaluate genetic delimitation for 12 Oreocharis populations from the island, together with morphological similarity analysis using 16 morphological traits. The results showed Hainan Oreocharis taxa were monophyletic with relative low genetic diversity within populations, highly significant genetic differentiation amongst populations and a significant phylogeographical structure. The 12 populations formed three genetically distinct groups, roughly correspondent to the currently recognised two species and one unknown lineage. The PCA analyses of morphological traits indicate three distinctive groups, differing mainly in petal colour and corolla shapes. The roles of river and mountain isolations in the origin and distribution of these three lineages are discussed.

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Tropical China Plant Diversity, Ecology and Conservation – a Glimpse at the Current State

et al. 2017

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Pollination Syndromes of Chinese Gesneriaceae: a Comparative Study between Hainan Island and Neighboring Regions

Cited by 12 publications

References 32 publications

Pollination Biology of Hemiboea ovalifolia (Gesneriaceae), an Endangered Herb from Guangxi, China

Pollination Biology of Hemiboea ovalifolia (Gesneriaceae), an Endangered Herb from Guangxi, China

Genetic delimitation of Oreocharis species from Hainan Island

Tropical China Plant Diversity, Ecology and Conservation – a Glimpse at the Current State

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