Results 31 to 40 of about 752 (187)

Sex Allocation in the Monoecious Herb Begonia semiovata [PDF]

Evolution, 1995
Sex-allocation models predict that the evolution of self-fertilization should result in a reduced allocation to male function and pollinator attraction in plants. The evolution of sex allocation may be constrained by both functional and genetic factors, however. We studied sex allocation and genetic variation for floral sex ratio and other reproductive
Jon, Ågren, Douglas W, Schemske
openaire   +2 more sources

Global distribution and evolutionary transitions of angiosperm sexual systems [PDF]

, 2021
Angiosperm sexual systems are fundamental to the evolution and distribution of plant diversity, yet spatiotemporal patterns in angiosperm sexual systems and their drivers remain poorly known.
Ao Luo, Li, Q., Liu, Yunpeng, Li, Yaoqi, Freckleton, Robert P., Xu, X., Lyu, Tong, Hao, Z., Denis Sandanov, Li, Y., Xu, Xiaoting, Dimitar Dimitrov, Sandanov, Denis, Hao, Zhanqing, Sandanov, D., Yaoqui, Li, Shuguang Liu, Luo, A., Luo, Ao, Dimitrov, D., Wang, Z., Freckleton, Robert, Yunyun Wang, Wang, Zhiheng, Yaoqi Li, Dimitrov, Dimitar, Yichao Li, Liu, Y., Wang, Yunyun, Su, X., Liu, S., Zhiheng Wang, Freckleton, R.P., Lyu, T., Li, Qingjun, Liu, Shuguang, Xiangyan Su, Robert P. Freckleton, Su, Xiangyan, Zhanqing Hao, Tong Lyu, Xiaoting Xu, Yunpeng Liu, Wang, Y., Li, Yichao, Qingjun Li   +45 more
core   +1 more source

Mapping a Partial Andromonoecy Locus in Citrullus lanatus Using BSA-Seq and GWAS Approaches

Frontiers in Plant Science, 2020
The sexual expression of watermelon plants is the result of the distribution and occurrence of male, female, bisexual and hermaphrodite flowers on the main and secondary stems. Plants can be monoecious (producing male and female flowers), andromonoecious
Encarnación Aguado, Alicia García, Jessica Iglesias-Moya, Jonathan Romero, Todd C. Wehner, María Luisa Gómez-Guillamón, Belén Picó, Ana Garcés-Claver, Cecilia Martínez, Manuel Jamilena   +9 more
doaj   +1 more source

A conserved ethylene biosynthesis enzyme leads to andromonoecy in two cucumis species. [PDF]

PLoS ONE, 2009
Andromonoecy is a widespread sexual system in angiosperms, characterized by plants carrying both male and bisexual flowers. Monoecy is characterized by the presence of both male and female flowers on the same plant.
Adnane Boualem, Christelle Troadec, Irina Kovalski, Marie-Agnes Sari, Rafael Perl-Treves, Abdelhafid Bendahmane   +5 more
doaj   +1 more source

Functional monoecy due to delayed anther dehiscence: a novel mechanism in Pseuduvaria mulgraveana (Annonaceae). [PDF]

PLoS ONE, 2013
Unlike most genera in the early-divergent angiosperm family Annonaceae, Pseuduvaria exhibits a diversity of floral sex expression. Most species are structurally andromonoecious (or possibly androdioecious), although the hermaphroditic flowers have been ...
Chun-Chiu Pang, Tanya Scharaschkin, Yvonne C F Su, Richard M K Saunders   +3 more
doaj   +1 more source

Evolution of distyly breakdown in Palicoureeae Robbr. & Manen and Psychotrieae Cham. & Schltdl. (Rubiaceae)

Acta Botânica Brasílica, 2022
Distyly is a floral polymorphism with reciprocal placement of male and female structures, heteromorphic self-incompatibility, and other ancillary traits. However, breeding system breakdowns and loss of polymorphism are common.
Ebenézer B. Rodrigues, Hélder Consolaro, Rocio Pérez-Barrales, Paulo Eugênio Oliveira   +3 more
doaj   +1 more source

Monoicy, dioicy, and genetic structure in three species of Sheathia (Batrachospermales, Rhodophyta). [PDF]

J Phycol
Abstract Sexual systems (i.e., separate vs. combined sexes) vary widely among eukaryotes and influence the evolution of reproductive systems, which shape genetic structure and evolutionary trajectories. In diploid‐dominant angiosperms, combined (i.e., hermaphroditism) and separate sexes are expected to correlate with selfing and outcrossing ...
Shainker-Connelly SJ, Stoeckel S, Vis ML, Krueger-Hadfield SA.   +3 more
europepmc   +2 more sources

Plant Sex Prediction Using Genetic Markers in Cultivated Yams (Dioscorea rotundata Poir.) in Benin

Agronomy, 2020
Dioscorea rotundata Poir. is mainly dioecious but it also produces monoecious individuals. Recently two genetic markers were proposed to determine the sex in this species.
Narcisse Denadi, Christophe Gandonou, Antoine Abel Missihoun, Jeanne Zoundjihékpon, Muriel Quinet   +4 more
doaj   +1 more source

Separated Sexes, Shared Consequences: Disentangling Predictors of Genetic Diversity in Dioecious Angiosperms. [PDF]

Ecol Evol
This study evaluates the factors influencing intrapopulation genetic diversity in dioecious flowering plants by integrating genetic and ecological data from studies published up to 2025. We show that pollination mode, endemism, and conservation status significantly shape genetic diversity patterns, with endemic and threatened species exhibiting the ...
Teixeira TM, Nazareno AG.
europepmc   +2 more sources

Gender plasticity uncovers multiple sexual morphs in natural populations of Cedrus deodara (Roxb.) G. Don

Ecological Processes, 2021
Background The expression of gender in gymnosperms is challenging because the extent of variability in gender segregations in tree crowns and selection pressure of nature can modify the gender through time.
Vinod Prasad Khanduri, Arun Sukumaran, Chandra Mohan Sharma   +2 more
doaj   +1 more source