ArticleBMC plant biology2015
Evaluation of reproductive barriers contributes to the development of novel interspecific hybrids in the Kalanchoë genus.
Article in BMC plant biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed, 50 citations in OpenAlex.
- Microscopic observation and hormone-targeted metabolomic analysis provide insights into the reproductive barriers of distant hybridization between Rhododendron subgenus Tsutsusi and subgenus Pentanthera.Plant cell reports · 2026Article
- The winner takes it all: a single genotype of Kalanchoe × houghtonii is a global invader.Annals of botany · 2025Article
- Non-Target Metabolomics Reveals Changes in Metabolite Profiles in Distant Hybrid Incompatibility BetweenPlants (Basel, Switzerland) · 2025Article
- Synthesis and Scope of the Role of Postmating Prezygotic Isolation in Speciation.Cold Spring Harbor perspectives in biology · 2024Review
- Intraspecific crossability and compatibility withinHeliyon · 2021Article
- Restoring Fertility for Novel Interspecific Hybrids betweenPlants (Basel, Switzerland) · 2021Article
- Endosperm of Angiosperms and Genomic Imprinting.Life (Basel, Switzerland) · 2020Review
- Maternal doubled haploid production in interploidy hybridization between Brassica napus and Brassica allooctaploids.Planta · 2018Article
- Towards development of new ornamental plants: status and progress in wide hybridization.Planta · 2016Review
- Role of Aromatic Amino Acids in Lipopolysaccharide and Membrane Interactions of Antimicrobial Peptides for Use in Plant Disease Control.The Journal of biological chemistry · 2016Article
- Interspecific hybridization among cultivars of hardy Hibiscus species section Muenchhusia.Breeding science · 2016Article
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Authors and funding
7 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundInterspecific hybridization is a useful tool in ornamental breeding to increase genetic variability and introduce new valuable traits into existing cultivars. The successful formation of interspecific hybrids is frequently limited by the presence of pre- and post-fertilization barriers. In the present study, we investigated the nature of hybridization barriers occurring in crosses between Kalanchoë species and evaluated possibilities of obtaining interspecific hybrids.
resultsThe qualitative and quantitative analyses of pollen tube growth in situ were performed following intra- and interspecific pollinations. They revealed occurrence of pre-fertilization barriers associated with inhibition of pollen germination on the stigma and abnormal growth of pollen tubes. Unilateral incongruity related to differences in pistil length was also observed. The pollen quality was identified as a strong factor influencing the number of pollen tubes germinating in the stigma. In relation to post-fertilization barriers, endosperm degeneration was a probable barrier hampering production of interspecific hybrids. Moreover, our results demonstrate the relation of genetic distance estimated by AFLP marker analysis of hybridization partners with cross-compatibility of Kalanchoë species. At the same time, differences in ploidy did not influence the success of interspecific crosses.
conclusionsOur study presents the first comprehensive analysis of hybridization barriers occurring within Kalanchoë genus. Reproductive barriers were detected on both, pre- and post-fertilization levels. This new knowledge will contribute to further understanding of reproductive isolation of Kalanchoë species and facilitate breeding of new cultivars. For the first time, interspecific hybrids between K. nyikae as maternal plant and K. blossfeldiana as well as K. blossfeldiana and K. marnieriana were generated.
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