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Female sterility associated with increased clonal propagation suggests a unique combination of androdioecy and asexual reproduction in populations of Cardamine amara (Brassicaceae).

Tedder A, Helling M, Pannell JR, Shimizu-Inatsugi R, Kawagoe T, van Campen J, Sese J, Shimizu KK - Ann. Bot. (2015)

Bottom Line: It was associated with a 2.4- to 2.9-fold increase in clonal propagation.This made the pollen number of female-sterile genets more than double that of hermaphrodite genets, which fulfils a condition of co-existence predicted by simple androdioecy theories.When female-sterile individuals were observed in wild androdioecious populations, their ramet frequencies ranged from 5 to 54 %; however, their genet frequencies ranged from 11 to 29 %, which is consistent with the theoretically predicted upper limit of 50 %.

View Article: PubMed Central - PubMed

Affiliation: Institute of Evolutionary Biology and Environmental Studies and Institute of Plant Biology, University of Zurich, Winterthurerstrasse 190, CH-8057, Switzerland, Department of Ecology and Evolution, University of Lausanne, Lausanne CH-1015, Switzerland, Center for Ecological Research (CER), Kyoto University, 2-509-3, Hirano, Otsu, Shiga 520-2113, Japan and Computational Biology Research Center (CBRC), National Institute of Advanced Industrial Science and Technology (AIST) Koto-ku, Tokyo, 135-0064, Japan.

No MeSH data available.


Related in: MedlinePlus

Epifluorescence micrographs showing pollen viability of female-sterile pollen on a hermaphrodite stigma (A) and hermaphrodite pollen on a female-sterile stigma (B). Pollen tubes are clearly visible in both images in fluorescent blue. Pollen tubes are indicated by arrows.
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mcv006-F5: Epifluorescence micrographs showing pollen viability of female-sterile pollen on a hermaphrodite stigma (A) and hermaphrodite pollen on a female-sterile stigma (B). Pollen tubes are clearly visible in both images in fluorescent blue. Pollen tubes are indicated by arrows.

Mentions: Epifluorescence microscopy revealed that pollen from both FS and H ramets was capable of producing functional pollen tubes (Fig. 5). In the manual pollination experiments in the field, pollen from both H and FS ramets generated seeds, confirming the fertility of FS pollen (Table 2 lines 13 and 14). We found no significant differences in seed production when FS and H pollen was used at KTP. We observed a tendency towards lower seed production following pollination by pollen from FS ramets compared with H ramets, particularly when average seed number per silique at WP was compared, although the variance for both WP and KTP was high and statistical support was not strong (Table 2 lines 13 and 14).Fig. 5.


Female sterility associated with increased clonal propagation suggests a unique combination of androdioecy and asexual reproduction in populations of Cardamine amara (Brassicaceae).

Tedder A, Helling M, Pannell JR, Shimizu-Inatsugi R, Kawagoe T, van Campen J, Sese J, Shimizu KK - Ann. Bot. (2015)

Epifluorescence micrographs showing pollen viability of female-sterile pollen on a hermaphrodite stigma (A) and hermaphrodite pollen on a female-sterile stigma (B). Pollen tubes are clearly visible in both images in fluorescent blue. Pollen tubes are indicated by arrows.
© Copyright Policy - creative-commons
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4373288&req=5

mcv006-F5: Epifluorescence micrographs showing pollen viability of female-sterile pollen on a hermaphrodite stigma (A) and hermaphrodite pollen on a female-sterile stigma (B). Pollen tubes are clearly visible in both images in fluorescent blue. Pollen tubes are indicated by arrows.
Mentions: Epifluorescence microscopy revealed that pollen from both FS and H ramets was capable of producing functional pollen tubes (Fig. 5). In the manual pollination experiments in the field, pollen from both H and FS ramets generated seeds, confirming the fertility of FS pollen (Table 2 lines 13 and 14). We found no significant differences in seed production when FS and H pollen was used at KTP. We observed a tendency towards lower seed production following pollination by pollen from FS ramets compared with H ramets, particularly when average seed number per silique at WP was compared, although the variance for both WP and KTP was high and statistical support was not strong (Table 2 lines 13 and 14).Fig. 5.

Bottom Line: It was associated with a 2.4- to 2.9-fold increase in clonal propagation.This made the pollen number of female-sterile genets more than double that of hermaphrodite genets, which fulfils a condition of co-existence predicted by simple androdioecy theories.When female-sterile individuals were observed in wild androdioecious populations, their ramet frequencies ranged from 5 to 54 %; however, their genet frequencies ranged from 11 to 29 %, which is consistent with the theoretically predicted upper limit of 50 %.

View Article: PubMed Central - PubMed

Affiliation: Institute of Evolutionary Biology and Environmental Studies and Institute of Plant Biology, University of Zurich, Winterthurerstrasse 190, CH-8057, Switzerland, Department of Ecology and Evolution, University of Lausanne, Lausanne CH-1015, Switzerland, Center for Ecological Research (CER), Kyoto University, 2-509-3, Hirano, Otsu, Shiga 520-2113, Japan and Computational Biology Research Center (CBRC), National Institute of Advanced Industrial Science and Technology (AIST) Koto-ku, Tokyo, 135-0064, Japan.

No MeSH data available.


Related in: MedlinePlus