Population genetic structure of mahogany (Swietenia macrophylla King, Meliaceae)across the Brazilian Amazon, based on variation at microsatellite loci: implications for conservation (Record no. 42778)

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003 - CONTROL NUMBER IDENTIFIER
control field MX-MdCICY
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20250625124721.0
040 ## - CATALOGING SOURCE
Transcribing agency CICY
090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN)
Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-8474
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245 10 - TITLE STATEMENT
Title Population genetic structure of mahogany (Swietenia macrophylla King, Meliaceae)across the Brazilian Amazon, based on variation at microsatellite loci: implications for conservation
490 0# - SERIES STATEMENT
Volume/sequential designation Molecular Ecology, 12(11), p.2875, 2003
520 3# - SUMMARY, ETC.
Summary, etc. Mahogany ( Swietenia macrophylla , Meliaceae)is the most valuable and intensively exploited Neotropical tree. No information is available regarding the genetic structure of mahogany in South America, yet the region harbours most of the unlogged populations of this prized hardwood. Here we report on the genetic diversity within and the differentiation among seven natural populations separated by up to 2100 km along the southern arc of the Brazilian Amazon basin. We analysed the variation at eight microsatellite loci for 194 adult individuals. All loci were highly variable, with the number of alleles per locus ranging from 13 to 27 (mean = 18.4). High levels of genetic diversity were found for all populations at the eight loci (mean H E = 0.781, range 0.754-0.812). We found moderate but statistically significant genetic differentiation among populations considering both estimators of F ST and R ST , è = 0.097 and ñ = 0.147, respectively. Estimates of è and ñ were significantly greater than zero for all pairwise population comparisons. Pairwise ñ -values were positively and significantly correlated with geographical distance under the isolation-by-distance model. Furthermore, four of the populations exhibited a significant inbreeding coefficient. The finding of local differentiation among Amazonian mahogany populations underscores the need for in situ conservation of multiple populations of S. macrophylla across its distribution in the Brazilian Amazon. In addition, the occurrence of microgeographical genetic differentiation at a local scale indicates the importance of maintaining populations in their diverse habitats, especially in areas with mosaics of topography and soil.
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element AMAZON
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element CONSERVATION GENETICS
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element GENETIC STRUCTURE
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element MAHOGANY
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element MICROSATELLITES
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element SWIETENIA MACROPHYLLA
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element TROPICAL TREE
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Lemes, M.R.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Gribel, R.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Proctor, J.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Grattapaglia, D.
856 40 - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="https://drive.google.com/file/d/1UCKGAtytrb0w2gnq6rJAfIiLsQh4LdVJ/view?usp=drivesdk">https://drive.google.com/file/d/1UCKGAtytrb0w2gnq6rJAfIiLsQh4LdVJ/view?usp=drivesdk</a>
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Source of classification or shelving scheme Clasificación local
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  Clasificación local     Ref1 CICY CICY Documento préstamo interbibliotecario 25.06.2025   B-8474 25.06.2025 25.06.2025 Documentos solicitados