Article
Plant Sciences
Sukanya Chakraborty, Prasun Biswas, Smritikana Dutta, Mridushree Basak, Suman Guha, Uday Chatterjee, Malay Das
Summary: Compared to other grasses, bamboo flowering exhibits significant differences in terms of timing, quantity, morphology, biology, and genetics. This study provides a comprehensive observation and analysis of the reproductive behavior of Bambusa tulda over a period of seven years.
Article
Ecology
Keng-Lou James Hung, Sophia L. Fan, Caroline G. Strang, Mia G. Park, James D. Thomson
Summary: Assessing the contributions of different pollinator taxa to pollination services is important in ecological research and agriculture. This study compared the pollination capacities of managed honey bees, native bumble bees, and native mining bees in apple crops, taking into account pollen carryover and pollinator movement patterns. The study found that pollination service delivery was significantly reduced when considering these factors, and native bumble and mining bees outperformed managed honey bees in terms of pollen delivery.
ECOLOGICAL APPLICATIONS
(2023)
Article
Plant Sciences
Sihao Hou, Tiantian Zhao, Zhen Yang, Lisong Liang, Wenxu Ma, Guixi Wang, Qinghua Ma
Summary: This study elucidated the mechanism of self-incompatibility and pollen-stigma interactions in Corylus plants through transcriptomic analysis, and identified key genes potentially involved in self-incompatibility. Additionally, the S-locus region was identified, laying the foundation for further analyses.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Biodiversity Conservation
Juan B. Gallego-Fernandez, Jose G. Garcia-Franco
Summary: The study found that Oenothera drummondii exhibits differences in fruit and seed characteristics between native and non-native populations, with high self-compatibility and a mixed reproductive system. The Integral Reproductive Success Index (IRSI) showed variations in fruit set, seed set, and germination, indicating differences between populations.
Article
Ecology
Stefan Abrahamczyk, Maximilian Weigend, Katrin Becker, Lea Sophie Dannenberg, Judith Eberz, Nayara Atella-Hoedtke, Bastian Steudel
Summary: Many hummingbird-pollinated plant species have evolved independently from bee-pollinated ancestors in different habitats in North and South America. Hummingbird-pollinated species have higher seed set and germination rates in cross-pollinated flowers compared to self-pollinated ones. Hummingbird pollination is more resource efficient in self-incompatible populations.
ECOLOGY AND EVOLUTION
(2022)
Article
Plant Sciences
Jessica J. Minnaar, Stephanie L. Payne, Glynis V. Cron
Summary: The study on Aloe reitzii var. reitzii revealed that it is partially self-compatible, but relies on pollinators to transfer pollen for fertilization. Natural pollination leads to reduced fecundity, but hand-selfed treatments produced viable seeds capable of germinating, indicating that partial self-compatibility provides some reproductive advantage to the plant.
SOUTH AFRICAN JOURNAL OF BOTANY
(2022)
Article
Plant Sciences
Ankit Dongariyal, Dinesh Chandra Dimri, Pradeep Kumar, Ashok Choudhary, Priynka Kumari Jat, Boris Basile, Alessandro Mataffo, Giandomenico Corrado, Akath Singh
Summary: This study focused on the fruit set, dynamics of pollen tube growth in pistil, and yield attributes of the Japanese plum varieties 'Satluj Purple' and 'Kala Amritsari'. The results indicated that cross-pollination had the most pronounced effect on fruit set and yield, while self-incompatibility caused poor fruit set in 'Satluj Purple'.
Article
Plant Sciences
Chun-Hui Wang, Ting-Ting Zou, Wei-Qi Liu, Xiao-Fan Wang
Summary: This study used Akebia quinata to estimate the influence of self-pollen deposition and found that it depended on the intensity and ratio of self-pollen, rather than the total number of pollen grains. Researchers provided new insights into the effects of self-pollen and the adaptive significance of self-incompatible monecious species.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Biology
Dillon J. Travis, Joshua R. Kohn
Summary: Most flowering plants rely on animal pollination, but the effects of different pollinators on plant fitness have not been fully understood. This study shows that non-native honeybees tend to visit more flowers on individual plants compared to native insect visitors, resulting in increased self-pollination. Offspring produced after honeybee pollination have similar fitness to those resulting from hand self-pollination but are less fit than those produced after pollination by native insects or cross-pollination. This study is the first to directly compare the fitness of offspring resulting from honeybee pollination with that of other floral visitors.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2023)
Article
Biodiversity Conservation
Michal Bogdziewicz, Dave Kelly, Andrew J. Tanentzap, Peter Thomas, Jessie Foest, Jonathan Lageard, Andrew Hacket-Pain
Summary: Climate warming reduces tree reproduction and affects forest dynamics, with consequences for forest regeneration at different levels. A study on European beech trees showed that masting breakdown leads to declining viable seed production over time, contrary to the initial increase in raw seed count. Tree size also plays a role, with seed predation increasing mainly in small trees and pollination efficiency disproportionately decreasing in larger individuals. This study highlights the importance of understanding the relationship between climate change, tree reproduction, and forest resilience.
GLOBAL CHANGE BIOLOGY
(2023)
Review
Plant Sciences
Ludi Wang, Dmitry A. Filatov
Summary: Hybridisation between different species can result in maladapted or nonviable offspring due to genetic incompatibilities. Mating with close relatives or self-fertilisation can lead to inbreeding depression. Therefore, organisms need to carefully choose their mating partners to avoid both of these problems. In plants, pollen-pistil interactions play a crucial role in avoiding inbreeding and hybridisation with other species. This review focuses on the mechanisms of pollen-pistil interactions and their importance in maintaining species integrity.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Horticulture
Ayda Boubakri, Lamia Krichen, Mohamed-Amine Batnini, Neila Trifi-Farah, Guillaume Roch, Jean-Marc Audergon, Hedia Bourguiba
Summary: The study identified diverse S-alleles within the Tunisian apricot germplasm, allocating the accessions into 14 cross-incompatibility groups, with newly identified self-compatible accessions. This reflects the domestication and diffusion history of apricot species. Understanding the incompatibility relationships among apricot accessions is crucial for future breeding programs and orchard design.
SCIENTIA HORTICULTURAE
(2021)
Article
Plant Sciences
Xiaoqiong Qin, Roger T. Chetelat
Summary: Unilateral incompatibility (UI) in Solanaceae plants is mainly caused by pollen rejection on the pistil, and a new pistil factor locus, ui3.1, associated with the FPS2 gene has been identified, which is regulated by the ODC2 gene cluster. ODC2 genes play a crucial role in S-RNase-independent UI and genetically interact with the ui12.1 gene to strengthen pollen rejection.
Article
Plant Sciences
Chang Li, Yi Long, Mengqi Lu, Junqin Zhou, Sen Wang, Yan Xu, Xiaofeng Tan
Summary: In this study, self- and cross-pollination experiments, cytological observation, fruit setting rate investigation, and RNA-Seq analysis were performed to understand the molecular expression and gene coexpression network in the late acting self-incompatibility (LSI) reaction in Camellia oleifera. The results identified genes positively correlated with fruit setting rate in the blue module and genes negatively correlated with fruit setting rate in the pink module. Key pathways for the LSI reaction included flavonoid biosynthesis, plant MAPK signaling pathways, ubiquitin-mediated proteolysis, and plant-pathogen interaction. WRKY and MYB genes were found to potentially participate in the LSI reaction in C. oleifera.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Horticulture
Kazuyuki Abe, Shigeki Moriya, Kazuma Okada, Sogo Nishio, Taku Shimizu, Takashi Haji
Summary: This study successfully produced a self-compatible mutant in apple through gamma-ray mutagenesis. Analysis of the mutant's progeny showed that the self-compatibility was not caused by nonfunctional pollen S factor, but likely due to an alteration of the S-chromosome. These findings have implications for breeding self-compatible apple varieties.
SCIENTIA HORTICULTURAE
(2023)