The patterns of inbreeding depression in food-deceptive Dactylorhiza orchids
IntroductionInbreeding depression (ID) in food-deceptive plants have been reported previously, however, it has not been often proven that selfed seeds germinate better than outbred ones or that selfing affects ID. To resolved these issues, food-deceptive related Dactylorhiza majalis, D. incarnata va...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2024-03-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2024.1244393/full |
| _version_ | 1797246705835442176 |
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| author | Ada Wróblewska Beata Ostrowiecka Emilia Brzosko Edyta Jermakowicz Izabela Tałałaj Paweł Mirski |
| author_facet | Ada Wróblewska Beata Ostrowiecka Emilia Brzosko Edyta Jermakowicz Izabela Tałałaj Paweł Mirski |
| author_sort | Ada Wróblewska |
| collection | DOAJ |
| description | IntroductionInbreeding depression (ID) in food-deceptive plants have been reported previously, however, it has not been often proven that selfed seeds germinate better than outbred ones or that selfing affects ID. To resolved these issues, food-deceptive related Dactylorhiza majalis, D. incarnata var. incarnata and D. fuchsii orchids were investigated.MethodsHand pollination treatments and control pollination were conducted. Fruit set, number of seeds per fruit, seed length, number of well-developed seeds per fruit, and proportion of in vitro asymbiotic germination seeds, were analyzed in relation to inflorescence levels and used as fitness indicators for these orchids. The ID and pollen limitation were measured.ResultsThe lowest ID (δ = −1.000) was in D. majalis, and present in combination with a high pollen limitation in its populations. D. fuchsii showed higher ID (δ = 0.366), and D. incarnata var. incarnata weak ID (δ = 0.065), although ID varied between its fitness components. The seed number per fruit differed significantly between the treatments and the inflorescence levels in treatments.DiscussionThis study emphasizes that the breeding system rather than the flower position on the inflorescence shaped the quality and quantity of reproductive output. The ID and its effect on germination of food-deceptive orchid seeds undoubtedly played an important role. |
| first_indexed | 2024-04-24T19:47:03Z |
| format | Article |
| id | doaj.art-1fac09b7fcc24474928af25b675d8673 |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-04-24T19:47:03Z |
| publishDate | 2024-03-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-1fac09b7fcc24474928af25b675d86732024-03-25T04:42:52ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2024-03-011510.3389/fpls.2024.12443931244393The patterns of inbreeding depression in food-deceptive Dactylorhiza orchidsAda WróblewskaBeata OstrowieckaEmilia BrzoskoEdyta JermakowiczIzabela TałałajPaweł MirskiIntroductionInbreeding depression (ID) in food-deceptive plants have been reported previously, however, it has not been often proven that selfed seeds germinate better than outbred ones or that selfing affects ID. To resolved these issues, food-deceptive related Dactylorhiza majalis, D. incarnata var. incarnata and D. fuchsii orchids were investigated.MethodsHand pollination treatments and control pollination were conducted. Fruit set, number of seeds per fruit, seed length, number of well-developed seeds per fruit, and proportion of in vitro asymbiotic germination seeds, were analyzed in relation to inflorescence levels and used as fitness indicators for these orchids. The ID and pollen limitation were measured.ResultsThe lowest ID (δ = −1.000) was in D. majalis, and present in combination with a high pollen limitation in its populations. D. fuchsii showed higher ID (δ = 0.366), and D. incarnata var. incarnata weak ID (δ = 0.065), although ID varied between its fitness components. The seed number per fruit differed significantly between the treatments and the inflorescence levels in treatments.DiscussionThis study emphasizes that the breeding system rather than the flower position on the inflorescence shaped the quality and quantity of reproductive output. The ID and its effect on germination of food-deceptive orchid seeds undoubtedly played an important role.https://www.frontiersin.org/articles/10.3389/fpls.2024.1244393/fullDactylorhiza fuchsiiDactylorhiza incarnata var. incarnataDactylorhiza majalisfruit setinbreeding depressionin vitro asymbiotic seed germination |
| spellingShingle | Ada Wróblewska Beata Ostrowiecka Emilia Brzosko Edyta Jermakowicz Izabela Tałałaj Paweł Mirski The patterns of inbreeding depression in food-deceptive Dactylorhiza orchids Frontiers in Plant Science Dactylorhiza fuchsii Dactylorhiza incarnata var. incarnata Dactylorhiza majalis fruit set inbreeding depression in vitro asymbiotic seed germination |
| title | The patterns of inbreeding depression in food-deceptive Dactylorhiza orchids |
| title_full | The patterns of inbreeding depression in food-deceptive Dactylorhiza orchids |
| title_fullStr | The patterns of inbreeding depression in food-deceptive Dactylorhiza orchids |
| title_full_unstemmed | The patterns of inbreeding depression in food-deceptive Dactylorhiza orchids |
| title_short | The patterns of inbreeding depression in food-deceptive Dactylorhiza orchids |
| title_sort | patterns of inbreeding depression in food deceptive dactylorhiza orchids |
| topic | Dactylorhiza fuchsii Dactylorhiza incarnata var. incarnata Dactylorhiza majalis fruit set inbreeding depression in vitro asymbiotic seed germination |
| url | https://www.frontiersin.org/articles/10.3389/fpls.2024.1244393/full |
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