Population genetics of Guibourtia chodatiana (Hassl.) J. Leonard, in a dry Chiquitano forest of Bolivia

Ojeda-Camacho, M.; Kjær, Erik Dahl; Philipp, Marianne

doi:10.1016/j.foreco.2012.10.017

Cited by 4 publications

(6 citation statements)

References 87 publications

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“…Furthermore, the selfed treatment only produced a single fruit with vestigial seeds that may not have been fertile, suggesting that geitonogamous pollination may not result in breeding success. Two of the three species within the Detarioid subfamily within Fabaceae whose breeding systems have been studied elsewhere also demonstrate at least some degree of self-incompatibility: cross-pollination and open-pollination treatments outperformed self-pollinated flowers for Tamarindus indica and partial pre-zygotic self-incompatibility was demonstrated [ 37 ]; and Guibourtia chodatiana was found to be mainly outcrossing [ 28 ]. Further study is needed to confirm these findings for both species studied here, and this could include closer study of possible dichogamy; pollen tube growth assessment of self and cross pollen on stigmas; testing the viability of selfed seeds; or other methods to confirm the mechanism by which the respective compatibility strategy is achieved.…”

Section: Discussionmentioning

confidence: 99%

“…Forest fragmentation, deforestation, selective exploitation, or otherwise increasing distances between conspecific plants, including apparently self-incompatible trees like J . paniculata that may be affected in this way due to destructive exploitation of this tree species for many wood products, could impact on pollination and possibly contribute to pollen limitation [ 23 , 28 ], and result in inbreeding depression in severely affected areas [ 21 ].…”

Section: Discussionmentioning

confidence: 99%

“…extensive felling for edible caterpillar host species). This may result in inbreeding depression which in turn could reduce the fitness of progeny [ 21 ], reduce disease and pest resistance and further decrease fertility [sensu 28 ]. In this context, the conservation of floral visitors such as those recorded in this study which likely contain the pollinators that help to maintain connectivity and buffer against the effects of fragmentation, will be a particularly important consideration when developing forest conservation strategies.…”

Section: Discussionmentioning

confidence: 99%

“…outperformed self-pollinated flowers for Tamarindus indica and partial pre-zygotic selfincompatibility was demonstrated [37]; and Guibourtia chodatiana was found to be mainly outcrossing [28]. Further study is needed to confirm these findings for both species studied here, and this could include closer study of possible dichogamy; pollen tube growth assessment of self and cross pollen on stigmas; testing the viability of selfed seeds; or other methods to confirm the mechanism by which the respective compatibility strategy is achieved.…”

Section: Plos Onementioning

confidence: 99%

“…Most tropical tree pollination or breeding systems studies have been conducted in either the Americas [e.g. [26][27][28][29][30], or Asia Pacific regions [e.g. [31][32][33][34][35], and only a few studies have been done on African tree species [e.g.…”

Section: Introductionmentioning

confidence: 99%

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The breeding systems and floral visitors of two widespread African dry forest species of ethnobotanical significance

Coppinger,

Stanley

2023

PLoS ONE

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Forest products derived from woody trees, such as fruits, seeds, honey, wood and others, are important resources for supporting rural livelihoods. However, little is known about the breeding systems or floral visitors of trees that provide these resources, often due to the difficulty of accessing tree canopies. This study addresses key knowledge gaps from a data poor region, providing information on the breeding systems and contribution of biotic pollination to two trees abundant in south-central Africa, that provide forest product supports for rural livelihoods: Julbernardia paniculata (Benth.) Troupin and Syzygium guineense (Willd.) subsp. barotsense F. White (Fabaceae and Myrtaceae respectively). The breeding systems of these species were assessed by conducting controlled pollination experiments, and then measuring the effects on reproductive success to determine the degree of self-compatibility and pollen limitation. Floral visitors and their behaviour were observed to provide preliminary information on possible pollinator groups. S. guineense appeared to be self-compatible, while J. paniculata showed signs of both self-incompatibility and pollen limitation. Floral visitors of both species were dominated by bees, with native honeybees (Apis mellifera) providing the highest visitation rates. These insights provide the first steps for understanding the reproductive ecology of these key tree species and can help to inform sustained management and conservation aimed at protecting forests and supporting rural livelihoods, as well as broaden the understanding of the floral visitors, and contribution of biotic pollination to forest tree reproductive success.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Plos Onementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

The breeding systems and floral visitors of two widespread African dry forest species of ethnobotanical significance

Coppinger,

Stanley

2023

PLoS ONE

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Genetic variation of teak (Tectona grandis Linn. f.) in Myanmar revealed by microsatellites

Minn¹,

Prinz

Finkeldey³

2014

Tree Genetics & Genomes

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Relationships between population density, fine-scale genetic structure, mating system and pollen dispersal in a timber tree from African rainforests

et al. 2015

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Owing to the reduction of population density and/or the environmental changes it induces, selective logging could affect the demography, reproductive biology and evolutionary potential of forest trees. This is particularly relevant in tropical forests where natural population densities can be low and isolated trees may be subject to outcross pollen limitation and/or produce low-quality selfed seeds that exhibit inbreeding depression. Comparing reproductive biology processes and genetic diversity of populations at different densities can provide indirect evidence of the potential impacts of logging. Here, we analysed patterns of genetic diversity, mating system and gene flow in three Central African populations of the self-compatible legume timber species Erythrophleum suaveolens with contrasting densities (0.11, 0.68 and 1.72 adults per ha). The comparison of inbreeding levels among cohorts suggests that selfing is detrimental as inbred individuals are eliminated between seedling and adult stages. Levels of genetic diversity, selfing rates (∼16%) and patterns of spatial genetic structure (Sp ∼0.006) were similar in all three populations. However, the extent of gene dispersal differed markedly among populations: the average distance of pollen dispersal increased with decreasing density (from 200 m in the high-density population to 1000 m in the low-density one). Overall, our results suggest that the reproductive biology and genetic diversity of the species are not affected by current logging practices. However, further investigations need to be conducted in low-density populations to evaluate (1) whether pollen limitation may reduce seed production and (2) the regeneration potential of the species.

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Population genetics of Guibourtia chodatiana (Hassl.) J. Leonard, in a dry Chiquitano forest of Bolivia

Cited by 4 publications

References 87 publications

The breeding systems and floral visitors of two widespread African dry forest species of ethnobotanical significance

The breeding systems and floral visitors of two widespread African dry forest species of ethnobotanical significance

Genetic variation of teak (Tectona grandis Linn. f.) in Myanmar revealed by microsatellites

Relationships between population density, fine-scale genetic structure, mating system and pollen dispersal in a timber tree from African rainforests

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