New records of pollen tube shower in species of Bertolonia (Melastomataceae) suggest that autogamy may be the rule in the genus
New records of pollen tube shower in species of Bertolonia (Melastomataceae) suggest that autogamy may be the rule in the genus
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Bertolonia(野牡丹科)物种花粉管簇射的新记录表明,自花受精可能是该属的规则
DOI:
10.1007/s00606-022-01829-9
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发表时间:
2022
影响因子:
1.9
通讯作者:
Maia, Fabiano Rodrigo
中科院分区:
文献类型:
--
作者:
Passos, Luan Salles;Goldenberg, Renato;Bacci, Lucas F.;Telles, Francismeire Jane;Maia, Fabiano Rodrigo
Previous molecular phylogenetic analyses showed thatBertolonia(Melastomataceae), an endemic genus to the Brazilian Atlantic Forest (AF) with 35 species, presents a strong correlation regarding species distribution and some floral traits. The same analyses showed that all species belong to three clades: marmorata (species mostly distributed in northern AF), formosa (species only occurring in central AF), and nymphaeifolia (species mostly distributed in southern AF). A rare delayed selfing mechanism, the pollen tube shower (PTS), was recently described for two species in the nymphaeifolia clade; however, this mechanism may also be prevalent in species of the other clades. Here, we investigated the potential occurrence of PTS in two other species of the genus:B. violacea(marmorata clade) andB. acuminata(nymphaeifolia clade). We also investigated species, as well as herbarium specimens, searching for potential evidence of floral traits that could suggest the presence of an autonomous selfing mechanism in otherBertoloniaspecies. BothB. violaceaandB. acuminataproduced seeds through PTS. We also observed the occurrence of PTS in two exsiccates from two different species:B. maculata(marmorata clade) andBertoloniasp. Taxonomic data across all clades of the genus indicate the absence of herkogamy, presence of post-anthesis petal closure and corolla persistence on the floral receptacle, all traits associated with the occurrence of PTS. We present here empirical evidence and descriptions of floral traits that indicate that the genusBertoloniais predominantly autogamous, an uncommon characteristic in Melastomataceae.
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DOI:
--
发表时间:
2009
期刊:
--
影响因子:
--
作者:
B. Thiers;B. Thiers;B. B. Čokić-B.
通讯作者:
B. Thiers;B. Thiers;B. B. Čokić-B.
影响因子:
1
作者:
Lucas F. Bacci;A. Amorim;F. Michelangeli;R. Goldenberg
通讯作者:
R. Goldenberg
影响因子:
2.9
作者:
A. Lázaro;J. Seguí;L. Santamaría
通讯作者:
L. Santamaría
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
Lucas F. Bacci;A. Amorim;F. Michelangeli;R. Goldenberg
通讯作者:
R. Goldenberg
DOI:
--
发表时间:
2021
期刊:
INTERNATIONAL JOURNAL PLANT SCIENCES
影响因子:
--
作者:
Lucas F. Bacci;R. Goldenberg;F. Michelangeli
通讯作者:
F. Michelangeli