How does sexual systems relates to reproductive traits, genetic diversity and thermotolerance in Fissidens Hedw. (Fissidentaceae, bryopsida)?

• Grant number: 18/24397-0
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: December 01, 2020
• End date: February 29, 2024
• Field of knowledge: Biological Sciences - Botany
• Principal Investigator: Fábio Pinheiro
• Grantee: Wagner Luiz dos Santos
• Host Institution: Instituto de Biologia (IB). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Associated scholarship(s): 21/09506-0 - Desiccation tolerance in bryophytes: costs and benefits related to moss reproduction, BE.EP.DR

Abstract

The diversity of bryophyte sexual systems emerges at the population level as a gradient of separation between female and male gametangios. Two lines of evidence on determinants of the diversity of sexual systems in bryophytes are available. First, by analogy with empirical observations in angiosperms, it is conjectured that the diversity ofsexual systems is correlated with the reproductive investment of these plants. Second, it is assumed that there is an association between magnitude of genetic variability and attributes of sexual systems such as distance between gametangios, probability of mutations and cross-fertilization. We add to these two lines of evidence the conjecture of association between diversity of sexual systems and degrees of thermotolerance in bryophytes, based on empirical information on the occurrence of different sexual systems in the Brazilian phytogeographic domains. I will investigate the correlation between diversity of sexual systems and traits of life history, genetic variability and degrees of thermotolerance using bryophytes of the genus Fissidens as a model system. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

SANTOS, WAGNER L.; PORTO, KATIA C.; PINHEIRO, FABIO. Sex-specific differences in reproductive life-history traits of the moss Weissia jamaicensis. AMERICAN JOURNAL OF BOTANY, v. 109, n. 4, p. 10-pg., 2022-04-18. (18/24397-0)

DOS SANTOS, WAGNER LUIZ; PORTO, KATIA CAVALCANTI; BORDIN, JUCARA; PINHEIRO, FABIO; BISANG, IRENE. The spatial arrangement of sexes is related to reproductive allocation in mosses: a comparative study of reproductive allocation in three different monoicous sexual systems. ANNALS OF BOTANY, v. 131, n. 5, p. 12-pg., 2023-04-02. (21/09506-0, 20/02150-3, 18/24397-0)

DOS SANTOS, WAGNER LUIZ; BORDIN, JUCARA; PORTO, KATIA CAVALCANTI; PINHEIRO, FABIO. Life-history traits and density dependence in metapopulations of a tropical moss: a monoicous species that is almost dioicous. Oecologia, v. N/A, p. 12-pg., 2022-12-15. (18/24397-0, 20/02150-3, 21/09506-0)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

SANTOS, Wagner Luiz dos. Ecology of acrocarpous moss: reproduction, distribution, and ecophysiology. 2024. Doctoral Thesis - Universidade Estadual de Campinas (UNICAMP). Instituto de Biologia Campinas, SP.