Who determines the timing of inflorescence closure of a sexual dandelion? Pollen donors versus recipients

Kyogoku, Daisuke; Kataoka, Yutaro; Kondo, Michio

doi:10.1007/s10682-019-10000-9

Cited by 3 publications

(2 citation statements)

References 32 publications

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“…Another possibility is apomictic pollen's effect mediated by flower head closure. Taraxacum japonicum close their flower heads upon conspecific pollination (Kyogoku et al ., 2019). If the pollen of apomictic Taraxacum also induces flower head closure, it may shorten the time available for conspecific pollination and thereby reduce the seed production of T. japonicum .…”

Section: Discussionmentioning

confidence: 99%

Pollination from invasive dandelions is unlikely to reduce seed production in the native Japanese dandelion, Taraxacum japonicum

Kyogoku

2020

Weed Research

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Reproductive interference occurs when closely related species interact reproductively, affecting the fitness of either or both species. Understanding the mechanisms by which reproductive interference reduces fitness can be crucial for effective management and the interpretation of the functional significance of traits. Invasive apomictic dandelions reproductively interfere with the seed production of Taraxacum japonicum, a sexual species native to part of the Japanese archipelago. The simultaneous deposition of both apomictic and conspecific pollen on the stigma of T. japonicum has been hypothesised to lead to interspecific fertilisation, producing empty seeds. However, experimental results appear to vary across studies. The invasive apomict is often assumed to be T. officinale, but other apomicts are morphologically similar to T. officinale, and only some may reproductively interfere with T. japonicum. Here, hand pollination experiments were performed using potted plants to control the identities of apomictic dandelions. No evidence was found for a negative effect of apomictic pollen on T. japonicum. Based on my experimental results and the review of relevant previous studies, I concluded that the simultaneous deposition of apomictic and conspecific pollen likely leads to a normal level of seed production in T. japonicum, suggesting that mechanisms other than interspecific pollen competition for fertilisation underlie reproductive interference by apomictic dandelions on T. japonicum.

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Section: Discussionmentioning

confidence: 99%

Pollination from invasive dandelions is unlikely to reduce seed production in the native Japanese dandelion, Taraxacum japonicum

Kyogoku

2020

Weed Research

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“…Although flower closure and petal senescence/abscission after pollination, which shorten flower life, have been well studied (van Doorn & Kamdee, 2014 ), the research has focused primarily on proximate factors, such as the physiological aspects. Recently, however, Kyogoku, Kataoka, and Kondoh ( 2019 ) reported that the flowers of a diploid Taraxacum species rapidly close their heads in response to the landing of pollen, and also discuss the ecological aspects of this closure.…”

Section: Introductionmentioning

confidence: 99%

Withering corolla remains on the calyx tube enhance reproductive success in Oxalis stricta L.

Imamura

Hariu

2020

Plant Enviro Interactions

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Data from: Who determines the timing of inflorescence closure of a sexual dandelion?: Pollen donors vs. recipients

Kyogoku,

Kataoka,

Kondoh

2019

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Who determines the timing of inflorescence closure of a sexual dandelion? Pollen donors versus recipients

Cited by 3 publications

References 32 publications

Pollination from invasive dandelions is unlikely to reduce seed production in the native Japanese dandelion, Taraxacum japonicum

Pollination from invasive dandelions is unlikely to reduce seed production in the native Japanese dandelion, Taraxacum japonicum

Withering corolla remains on the calyx tube enhance reproductive success in Oxalis stricta L.

Data from: Who determines the timing of inflorescence closure of a sexual dandelion?: Pollen donors vs. recipients

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