Estimating genetic diversity, mating system and pollen dispersal to inform ex situ conservation of the tree Genipa americana L
| Autor: | Celso Luis Marino, Mario Luiz Teixeira de Moraes, Alexandre Magno Sebbenn, Ana Veruska Cruz da Silva Muniz, Carlos Jose Rodrigues, Marília Freitas de Vasconcelos Melo, Bruno C. Rossini |
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| Přispěvatelé: | Universidade Federal Do Alagoas, Instituto Florestal de São Paulo, Universidade Estadual Paulista (Unesp), Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA), Usina Porto Primavera, MARILIA FREITAS DE VASCONCELOS MELO, UFAL, ALEXANDRE MAGNO SEBBENN, INSTITUTO FLORESTAL DE SAO PAULO, BRUNO CESAR ROSSINI, UNESP, ANA VERUSKA CRUZ DA SILVA, CPATC, CARLOS JOSE RODRIGUES, CESP, CELSO LUIS MARINO, UNESP, MARIO LUIZ TEIXEIRA DE MORAES, UNESP. |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
0301 basic medicine Preservação da Natureza Fruta Tropical Zoology Outcrossing Plant Science Biology Melhoramento Genético Vegetal medicine.disease_cause 010603 evolutionary biology 01 natural sciences Fixation index 03 medical and health sciences Pollen medicine Forest genetics Genetics Genipa americana tropical trees progeny test Genetic diversity microsatellite loci biology.organism_classification Mating system Ex situ conservation Pólen Tropical and subtropical fruits Genipa 030104 developmental biology Natural population growth conservation genetics Melhoramento Vegetal Genética Vegetal Genipa Americana gene flow Agronomy and Crop Science |
| Zdroj: | Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA-Alice) Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
| Popis: | Made available in DSpace on 2021-06-25T11:03:08Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-02-01 Using microsatellite loci, we assessed the mating system and genetic diversity of the dioecious tropical tree Genipa americana in a natural population (NP) and a progeny test (PT). For NP, we also estimated the paternity correlation within and among fruits and mean pollen dispersal distance. As expected for dioecious species, all offspring originated from outcrossing (t = 1). Mating among relatives (1-ts) and paternity correlation (rp) were variable among progenies (1-ts = 0.03-0.19; rp = 0.04-0.40), but greater in NP than in PT. Fixation index (F) was generally significant and lower in adults than in offspring, indicating selection against inbred individuals. Paternity correlation was higher within (0.40) than among (0.26) fruits, indicating a lower effective number of pollen donors (Nep) within (2.5) than among (3.8) fruits. Due to the higher rp in NP, the effective size within progenies (Ne) was lower (2.69) than PT (3.27). The pollen dispersal pattern was strongly leptokurtic, suggesting long-distance pollen dispersal (mean of 179 m). The results show that both populations can be used for seed collection in environmental reforestation programmes; however, considering that PT is structured in maternal progenies, NP is more suitable for seed collection due to the lower probability of mating among related trees. Universidade Federal Do Alagoas Campus de Engenharias e Ciências Agrárias Instituto Florestal de São Paulo, C.P. 1322 Universidade Estadual Paulista Instituto de Biotecnologia Unesp Embrapa Tabuleiros Costeiros Cia Energética de São Paulo Usina Porto Primavera Universidade Estadual Paulista Faculdade de Engenharia Unesp Universidade Estadual Paulista Instituto de Biotecnologia Unesp Universidade Estadual Paulista Faculdade de Engenharia Unesp |
| Databáze: | OpenAIRE |
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