Allometry Between Vegetative and Reproductive Traits in Orchids
In flowering plants, inflorescence characteristics influence both seed set and pollen contribution, while inflorescence and peduncle size can be correlated with biomass allocation to reproductive organs. Peduncles also play a role in water and nutrient supply of flowers, and mechanical support. Howe...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2021-10-01
|
| Series: | Frontiers in Plant Science |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2021.728843/full |
| _version_ | 1818620387558162432 |
|---|---|
| author | Jing-Qiu Feng Jing-Qiu Feng Feng-Ping Zhang Jia-Lin Huang Hong Hu Shi-Bao Zhang |
| author_facet | Jing-Qiu Feng Jing-Qiu Feng Feng-Ping Zhang Jia-Lin Huang Hong Hu Shi-Bao Zhang |
| author_sort | Jing-Qiu Feng |
| collection | DOAJ |
| description | In flowering plants, inflorescence characteristics influence both seed set and pollen contribution, while inflorescence and peduncle size can be correlated with biomass allocation to reproductive organs. Peduncles also play a role in water and nutrient supply of flowers, and mechanical support. However, it is currently unclear whether inflorescence size is correlated with peduncle size. Here, we tested whether orchids with large diameter peduncles bear more and larger flowers than those with smaller peduncles by analyzing 10 traits of inflorescence, flower, and leaf in 26 species. Peduncle diameters were positively correlated with inflorescence length and total floral area, indicating that species with larger peduncles tended to have larger inflorescences and larger flowers. We also found strongly positive correlation between inflorescence length and leaf area, and between total floral area and total leaf area, which suggested that reproductive organs may be allometrically coordinated with vegetative organs. However, neither flower number nor floral dry mass per unit area were correlated with leaf number or leaf dry mass per unit area, implying that the function between leaf and flower was uncoupled. Our findings provided a new insight for understanding the evolution of orchids, and for horticulturalists interested in improving floral and inflorescence traits in orchids. |
| first_indexed | 2024-12-16T17:52:34Z |
| format | Article |
| id | doaj.art-24dfca963fb641a785609ec5b8789047 |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-12-16T17:52:34Z |
| publishDate | 2021-10-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-24dfca963fb641a785609ec5b87890472022-12-21T22:22:15ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2021-10-011210.3389/fpls.2021.728843728843Allometry Between Vegetative and Reproductive Traits in OrchidsJing-Qiu Feng0Jing-Qiu Feng1Feng-Ping Zhang2Jia-Lin Huang3Hong Hu4Shi-Bao Zhang5Key Laboratory of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, ChinaUniversity of Chinese Academy of Sciences, Beijing, ChinaYunnan Key Laboratory of Dai and Yi Medicines, College of Traditional Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, ChinaYuxi Normal University, Yuxi, ChinaKey Laboratory of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, ChinaKey Laboratory of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, ChinaIn flowering plants, inflorescence characteristics influence both seed set and pollen contribution, while inflorescence and peduncle size can be correlated with biomass allocation to reproductive organs. Peduncles also play a role in water and nutrient supply of flowers, and mechanical support. However, it is currently unclear whether inflorescence size is correlated with peduncle size. Here, we tested whether orchids with large diameter peduncles bear more and larger flowers than those with smaller peduncles by analyzing 10 traits of inflorescence, flower, and leaf in 26 species. Peduncle diameters were positively correlated with inflorescence length and total floral area, indicating that species with larger peduncles tended to have larger inflorescences and larger flowers. We also found strongly positive correlation between inflorescence length and leaf area, and between total floral area and total leaf area, which suggested that reproductive organs may be allometrically coordinated with vegetative organs. However, neither flower number nor floral dry mass per unit area were correlated with leaf number or leaf dry mass per unit area, implying that the function between leaf and flower was uncoupled. Our findings provided a new insight for understanding the evolution of orchids, and for horticulturalists interested in improving floral and inflorescence traits in orchids.https://www.frontiersin.org/articles/10.3389/fpls.2021.728843/fullallometryflower traitsinflorescence lengthorchidspeduncle diameterleaf traits |
| spellingShingle | Jing-Qiu Feng Jing-Qiu Feng Feng-Ping Zhang Jia-Lin Huang Hong Hu Shi-Bao Zhang Allometry Between Vegetative and Reproductive Traits in Orchids Frontiers in Plant Science allometry flower traits inflorescence length orchids peduncle diameter leaf traits |
| title | Allometry Between Vegetative and Reproductive Traits in Orchids |
| title_full | Allometry Between Vegetative and Reproductive Traits in Orchids |
| title_fullStr | Allometry Between Vegetative and Reproductive Traits in Orchids |
| title_full_unstemmed | Allometry Between Vegetative and Reproductive Traits in Orchids |
| title_short | Allometry Between Vegetative and Reproductive Traits in Orchids |
| title_sort | allometry between vegetative and reproductive traits in orchids |
| topic | allometry flower traits inflorescence length orchids peduncle diameter leaf traits |
| url | https://www.frontiersin.org/articles/10.3389/fpls.2021.728843/full |
| work_keys_str_mv | AT jingqiufeng allometrybetweenvegetativeandreproductivetraitsinorchids AT jingqiufeng allometrybetweenvegetativeandreproductivetraitsinorchids AT fengpingzhang allometrybetweenvegetativeandreproductivetraitsinorchids AT jialinhuang allometrybetweenvegetativeandreproductivetraitsinorchids AT honghu allometrybetweenvegetativeandreproductivetraitsinorchids AT shibaozhang allometrybetweenvegetativeandreproductivetraitsinorchids |