scholarly journals How early does the selfing syndrome arise? Associations between selfing ability and flower size within populations of the mixed mater Collinsia verna

2021 ◽  
Author(s):  
Robert M. McElderry ◽  
Rachel B. Spigler ◽  
Donna W. Vogler ◽  
Susan Kalisz
Keyword(s):  
Flower Size ◽  
Collinsia Verna ◽  
Selfing Syndrome ◽  
Selfing Ability

Low reproductive success of hay-scented fern (Dennstaedtia punctilobula) regardless of inbreeding level or time since disturbance

Botany ◽  
2014 ◽  
Vol 92 (12) ◽  
pp. 911-915 ◽  
Author(s):  
Kathryn M. Flinn ◽  
Matthew M. Loiacono ◽  
Hannah E. Groff
Keyword(s):  
Reproductive Success ◽  
Mating Systems ◽  
Tree Regeneration ◽  
Single Individual ◽  
Dennstaedtia Punctilobula ◽  
Self Fertilization ◽  
Sporophyte Production ◽  
Inbreeding Level ◽  
Native Invasive ◽  
Selfing Ability

Self-fertilization can facilitate the colonization of new habitats because it allows a single individual to found a population. Here we investigated the relationship between mating systems and colonization in hay-scented fern (Dennstaedtia punctilobula (Michx.) T.Moore). Throughout eastern North America, this species has been called a “native invasive” for its tendency to dominate forest understories disturbed by logging, inhibiting tree regeneration. Thus, it is important to understand the mechanisms of its spread. We hypothesized that if populations were founded through selfing, then populations disturbed more recently would retain higher selfing ability; this pattern would demonstrate an important link between mating systems and colonization. For four populations logged at different times in the past, we compared the sporophyte production of gametophytes at different levels of inbreeding (intragametophytic selfing, intergametophytic selfing, and outcrossing) using laboratory crosses. Across all treatments, only 9.8% of gametophytes formed sporophytes (N = 400 gametophytes). Neither inbreeding level nor time since disturbance affected sporophyte production. Selfing ability did not differ across populations logged at different times; there was no interaction between inbreeding level and time since disturbance. The low reproductive success of D. punctilobula, regardless of inbreeding level or time since disturbance, suggests that population establishment and expansion via sexual reproduction may be relatively rare in this clonal species.

scholarly journals Ecological Implications of a Flower Size/Number Trade-Off in Tropical Forest Trees

PLoS ONE ◽  
2011 ◽  
Vol 6 (2) ◽  
pp. e16111 ◽  
Author(s):  
Chris J. Kettle ◽  
Colin R. Maycock ◽  
Jaboury Ghazoul ◽  
Pete M. Hollingsworth ◽  
Eyen Khoo ◽  
...  
Keyword(s):  
Tropical Forest ◽  
Flower Size ◽  
Forest Trees ◽  
Trade Off ◽  
Size Number ◽  
Ecological Implications

scholarly journals Evolution of the Selfing Syndrome in Arabis alpina (Brassicaceae)

PLoS ONE ◽  
2015 ◽  
Vol 10 (6) ◽  
pp. e0126618 ◽  
Author(s):  
Andrew Tedder ◽  
Samuel Carleial ◽  
Martyna Gołębiewska ◽  
Christian Kappel ◽  
Kentaro K. Shimizu ◽  
...  
Keyword(s):  
Arabis Alpina ◽  
Selfing Syndrome

Reproductive success of Acacia longifolia (Fabaceae, Mimosoideae) in native and invasive populations

2015 ◽  
Vol 63 (5) ◽  
pp. 387 ◽  
Author(s):  
Marta Correia ◽  
Sílvia Castro ◽  
Susana Rodríguez-Echeverría
Keyword(s):  
Reproductive Success ◽  
Seed Size ◽  
Fruit Set ◽  
Lower Number ◽  
Open Pollination ◽  
Native Range ◽  
Reproductive Assurance ◽  
Acacia Species ◽  
Self Compatibility ◽  
Selfing Ability

The reproductive biology of exotic species affects their capacity to become naturalised and invasive in non-native areas. Selfing is a common trait in many invasive plants probably because it provides reproductive assurance under low availability of pollination vectors and sexual partners. Nonetheless, the predominantly self-incompatible Australian Acacia species are among the most aggressive plants worldwide. To address whether there have been changes in selfing ability and natural reproductive success of A. longifolia during invasion, we compared one population in the invaded area (Portugal) with one population in the native range (Australia). We specifically assessed floral traits, fruit set and offspring traits for selfing and open-pollination treatments. Within each pollination treatment, no differences were found between areas, suggesting that the level of self-compatibility has not changed during invasion. However, the number of aborted seeds and seed size were significantly different between pollination treatments in Australia but not in Portugal. There were significant differences in the number of seeds per pod and in seed weight between ranges. A lower number of aborted seeds, a higher number of fully developed seeds and a greater seed size were found in the invaded area for both pollination treatments. In spite of the low selfing ability of A. longifolia in the invaded area, there was an increase in the quantity and size of the seeds produced in the new region, even for self-pollinated fruits, which might contribute to A. longifolia invasiveness.

scholarly journals Changes of flowering phenology and flower size in rosaceous plants from a biodiversity hotspot in the past century

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Qin Yu ◽  
Dong-Rui Jia ◽  
Bin Tian ◽  
Yong-Ping Yang ◽  
Yuan-Wen Duan
Keyword(s):  
Flowering Phenology ◽  
Biodiversity Hotspot ◽  
Flower Size ◽  
Past Century ◽  
The Past

Role of sink-source relationships in chrysanthemum flower size and total biomass production

2006 ◽  
Vol 128 (2) ◽  
pp. 263-273 ◽  
Author(s):  
Susana M.P. Carvalho ◽  
Ep Heuvelink ◽  
Jeremy Harbinson ◽  
Olaf Van Kooten
Keyword(s):  
Biomass Production ◽  
Flower Size ◽  
Total Biomass

scholarly journals Catching the thief: Nectar robbing behaviour by bumblebees on naturalised Fuchsia magellanica in Ireland

2021 ◽  
Vol 29 ◽  
pp. 240-248
Author(s):  
Dara Anne Stanley ◽  
Emmeline Cosnett
Keyword(s):  
Body Size ◽  
Significant Relationship ◽  
Flower Size ◽  
Nectar Robbing ◽  
Native Range ◽  
Alien Plant ◽  
Pollination System ◽  
Flower Visitor ◽  
Bumblebee Species ◽  
Competition For Resources

Fuchsia magellanica (Ongaraceae) is a plant with a traditionally ornithopholous pollination system, pollinated primarily by hummingbirds in its native range. As a naturalised alien plant in Ireland, F. magellanica is visited largely by bumblebees, with evidence for nectar robbing behaviour of the long-tubed flowers. We aimed to investigate nectar robbing behaviour of bumblebees on F. magellanica, and in particular whether floral and pollinator traits (size) determined likelihood of nectar robbing. While F. magellanica was visited by a number of bumblebee species, only two with shorter tongue lengths were observed to rob nectar from flowers. Although there was no observed relationship between intra-specific bee body size and nectar robbing behaviour, nectar robbing was observed most frequently in the site with the highest number of bees. Proportions of robbed flowers were low overall and varied between populations, but there was a significant relationship between flower size and whether it was nectar robbed with larger flowers robbed more often. Our work suggests that floral size determines whether a flower-visitor will choose to nectar rob or not in this system. Nectar robbing may also be related to bee density which could suggest this behaviour is driven by competition for resources, or that it is learnt by observing other bees.

scholarly journals Evolution of Growth Habit, Inflorescence Architecture, Flower Size, and Fruit Type in Rubiaceae: Its Ecological and Evolutionary Implications

PLoS ONE ◽  
2012 ◽  
Vol 7 (7) ◽  
pp. e40851 ◽  
Author(s):  
Sylvain G. Razafimandimbison ◽  
Stefan Ekman ◽  
Timothy D. McDowell ◽  
Birgitta Bremer
Keyword(s):  
Growth Habit ◽  
Flower Size ◽  
Inflorescence Architecture ◽  
Fruit Type
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