TY - JOUR
T1 - Exploring the diversity of sexual systems and pollination in Brazilian Cleomaceae species
AU - Parma, Daniele F.
AU - Souza, Kaik F.
AU - Vaz, Marcelo G.M.V.
AU - Martins, Sandy Bastos
AU - Araújo, Wagner L.
AU - Zsögön, Agustin
AU - Weber, Andreas P.M.
AU - Schranz, Eric
AU - Nunes-Nesi, Adriano
PY - 2023/3
Y1 - 2023/3
N2 - The family Cleomaceae is characterized by remarkable floral diversity and abundant nectar and pollen production. In this study, we evaluated the flower functional characteristics associated with the floral diversity of 10 Cleomaceae species, in addition to respectively seven and five accessions of Tarenaya hassleriana and T. longicarpa. The flowers were examined through five types of crosses and thus we determined the most efficient type of crossing based on the number of seeds. In addition, we evaluated pollen limitation, self-incompatibility, self-pollination and explored the possible effects on seed germination. The species can be grouped into three groups based on sexual systems: andromonoecious, hermaphroditism (chasmogamous and cleistogamous), and polygamomonoecious flowers. Gynandropsis gynandra, T. aculeata, T. diffusa, and T. microcarpa exhibited autogamy, whereas the other species did not. Overall, hand cross-pollination produced the highest seed yield, followed by open pollination. Self-pollination produced the lowest number of seeds, with no seed production noted in 16 accessions. Interestingly, the pollination type did not affect seed germination. Together, these results indicate the potential of the Cleomaceae family as a source of information regarding mechanisms involved in the determination of reproductive traits in plants.
AB - The family Cleomaceae is characterized by remarkable floral diversity and abundant nectar and pollen production. In this study, we evaluated the flower functional characteristics associated with the floral diversity of 10 Cleomaceae species, in addition to respectively seven and five accessions of Tarenaya hassleriana and T. longicarpa. The flowers were examined through five types of crosses and thus we determined the most efficient type of crossing based on the number of seeds. In addition, we evaluated pollen limitation, self-incompatibility, self-pollination and explored the possible effects on seed germination. The species can be grouped into three groups based on sexual systems: andromonoecious, hermaphroditism (chasmogamous and cleistogamous), and polygamomonoecious flowers. Gynandropsis gynandra, T. aculeata, T. diffusa, and T. microcarpa exhibited autogamy, whereas the other species did not. Overall, hand cross-pollination produced the highest seed yield, followed by open pollination. Self-pollination produced the lowest number of seeds, with no seed production noted in 16 accessions. Interestingly, the pollination type did not affect seed germination. Together, these results indicate the potential of the Cleomaceae family as a source of information regarding mechanisms involved in the determination of reproductive traits in plants.
KW - Andromonoecy
KW - Cleoserrata
KW - Dichogamy
KW - Gynandropsis
KW - Herkogamy
KW - Tarenaya
U2 - 10.1016/j.flora.2023.152245
DO - 10.1016/j.flora.2023.152245
M3 - Article
AN - SCOPUS:85148372913
SN - 0367-2530
VL - 300
JO - Flora: Morphology, Distribution, Functional Ecology of Plants
JF - Flora: Morphology, Distribution, Functional Ecology of Plants
M1 - 152245
ER -