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| Format: | Artículo científico |
| Language: | en |
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Universidade Federal de Lavras
2018
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| Online Access: | https://www.redalyc.org/articulo.oa?id=74460240001 https://www.redalyc.org/journal/744/74460240001/ https://www.redalyc.org/journal/744/74460240001/html/ https://www.redalyc.org/journal/744/74460240001/74460240001.epub https://www.redalyc.org/journal/744/74460240001/movil |
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Table of Contents:
- GENETIC DIVERSITY AND MATING SYSTEM OF Rhizophora mangle L. (RHIZOPHORACEAE) IN NORTHERN BRAZIL REVEALED BY MICROSATELLITE ANALYSIS Patrícia M. Francisco Evandro V. Tambarussi Fábio de M. Alves Stephanie Bajay Maisa Ciampi-Guillardi Anete P. Souza Agrociencias Population genetics Conservation genetics Tropical tree species Microsatellite markers Brazilian Atlantic Forest Rhizophora mangle L. (Rhizophoraceae) grows on aerial roots, which emerge above the water level, giving stands of this tree the characteristic “mangrove” appearance. To produce in situ and ex situ information for genetic conservation programs for this species, we investigated the genetic diversity and mating system of one R. mangle population. We sampled 30 adult trees and a total of 349 seeds in Northern Brazil. We genotyped all adult trees and seeds with four microsatellite loci. The average fixation index was -0.222 for adult trees and 0.030 for seeds. The multilocus outcrossing rate (t m =0.921) was significantly lower than unity (1.0). There was no substantial evidence of null alleles nor genotypic disequilibrium among the loci. The combined power to exclude the first parent probability was 0.921. The average coancestry coefficient (org.siir.client.entities.InlineGraphic@961d1=0.180) was similar to that expected for half-sib progenies (org.siir.client.entities.InlineGraphic@1f4e476=0.125). Thus, the number of adult trees necessary for seed collection to obtain progeny arrays with an effective size of 150 was estimated to be 62. In conclusion, this study produced important information for the management and conservation of R. mangle and will contribute to conservation and management programs for this species. 2018 artículo científico 0104-7760 https://www.redalyc.org/articulo.oa?id=74460240001 https://www.redalyc.org/journal/744/74460240001/ https://www.redalyc.org/journal/744/74460240001/html/ https://www.redalyc.org/journal/744/74460240001/74460240001.epub https://www.redalyc.org/journal/744/74460240001/movil 10.1590/01047760201824042575 en http://www.redalyc.org/revista.oa?id=744 CERNE application/pdf Universidade Federal de Lavras CERNE (Brasil) Num.4 Vol.24