Research Article Genetic structure and diversity of &lt;i&gt;Senefeldera verticillata&lt;/i&gt; (Euphorbiaceae) in semideciduous seasonal forest fragments

Vieira, Alessandra Abreu Rodrigues; JÃonior, A.L. Silva; Souza, Lucimara Cruz de; Mir, F.D.; Ferreira, Márcia Flores da Silva; Caldeira, Marcos Vinícius Winckler

doi:10.4238/gmr18059

Cited by 4 publications

(3 citation statements)

References 10 publications

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“…However, this estimate corresponds to the historical gene flow, referring to the interaction of populations in the past, when the actual adult trees settled (Kageyama et al, 2003). Nevertheless, the N m value found in this study can be considered low when compared to the values described for other tree species, such as 12.70 for Plathymenia reticulata (Souza et al, 2017) and 13.54 for Senefeldera verticillata (Vieira et al, 2018), which may be favoring the moderate genetic differentiation between populations.…”

Section: Genetic Structuringcontrasting

confidence: 86%

EVALUATION OF DIVERSITY AND GENETIC STRUCTURE AS STRATEGIES FOR CONSERVATION OF NATURAL POPULATIONS OF Dalbergia nigra (Vell.) Allemão ex Benth.

Júnior

Cabral

Sartori

et al. 2020

CERNE

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Section: Genetic Structuringcontrasting

confidence: 86%

EVALUATION OF DIVERSITY AND GENETIC STRUCTURE AS STRATEGIES FOR CONSERVATION OF NATURAL POPULATIONS OF Dalbergia nigra (Vell.) Allemão ex Benth.

Júnior

Cabral

Sartori

et al. 2020

CERNE

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“…Compared to another endangered and endemic species of the atlantic forest, called Dalbergia nigra (Silva Júnior et al, 2020), evaluated in forest fragments close to or similar to those in this study, the number of total bands and the percentage of polymorphism were lower to those found for P. peroba. This comparison can also be made with other forest species that do not qualify as vulnerable (Vieira et al, 2018;Vieira et al, 2022), however, which have values similar to those found, showing that the individuals evaluated in the populations of P. peroba maintain high genetic variability. The occurrence of private markers among populations (Table 1) is certainly associated with increased genetic variability among individuals, however, it may also imply greater genetic differentiation between populations.…”

Section: Discussion Descriptive Analysis Optimal Number Of Fragments ...supporting

confidence: 62%

Genetic characterization of remaining populations of paratecoma peroba, an endangered and endemic species of the atlantic forest

França

Tavares

Júnior

et al. 2022

CERNE

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Background:The objective of this study was the genetic characterization of remaining populations of the species Paratecoma peroba occurring in fragments of the Atlantic Forest, by estimating parameters of diversity and genetic structure. The study was carried out in two forest fragments, the Atlantic Forest Environmental Education Pole (area 1) and the Pacotuba National Forest (area 2), where 93 adult trees were identified.Results: Ten Inter Simple Sequence Repeats (ISSR) primers were used in genotyping, obtaining 112 amplified bands with 87.5% polymorphism. The genetic diversity estimated for the populations from the Nei (H*) and Shannon (I*) indices was higher for area 1. For the joint data, moderate genetic diversity was observed, referring to the average values of 0.26 and 0.40, obtained for the H* and I* indices, respectively. Molecular variance analysis resulted in moderate differentiation between populations (ΦST = 0.143), while gene flow analysis (N m = 6.69) revealed the occurrence of similar alleles between them. However, the predominance of a single genetic group in area 2, revealed from Bayesian approach, indicates that its genetic structure, possibly generated by the current scenario of fragmentation of the Atlantic Forest and the distancing of populations, affecting the contemporary gene flow. Conclusion:Despite the moderate genetic diversity of the species for the area 2 population, actions toward inclusion of seedlings obtained from seeds from neighboring fragments, including area 1, and the increase in the connectivity of forest fragments through ecological corridors, could assist in augmenting its genetic variation.

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“…Similar results were reported for populations of Senefeldera verticillata (Vell.) Croizat (Euphorbiaceae) (Vieira et al, 2018) and Myrcia splendens (Sw.) DC. (Myrtaceae) (Brandão et al, 2015).…”

Section: Discussionmentioning

confidence: 99%

Does the faxinal system help to maintain the genetic diversity of Curitiba prismatica (D.Legrand) Salywon & Landrum?

Silva

Vieira

Tambarussi³

et al. 2022

CERNE

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Background: Curitiba prismatica (D.Legrand) Salywon & Landrum belongs to the Myrtaceae family and it is popularly known as murta. Endemic to the Mixed Ombrophilous Forest of south Brazil, is predominant in Faxinal System, which is a traditional agricultural system in the State of Paraná. This species also has several uses and potentials, such as wood for fence posts and essential oils with pharmacological properties. For this reason, this study aimed to select molecular markers and assess whether the Faxinal System contributes to the maintenance of the genetic diversity of the species, helping in its management and conservation. As such, 120 adult reproductive individuals were sampled, 60 in two areas managed in the Faxinal System, and 60 in two conservation areas.Results: Initially, 30 ISSR markers were selected, but only eight showed considerable variability, resulting in 68 polymorphic loci. The results show that the average diversity within populations is 80.54%. The Shannon (I) and Nei's (He) diversity indices were 0.53 and 0.36, respectively. According to Nei's genetic identity, the populations form two groups. With the analysis of the genetic structure of the populations, which indicated the existence of two distinct genetic groups (K = 2). Conclusion:Thus, the populations in the Faxinal System had higher rates of genetic diversity, despite constant human activity within the system. Therefore, the Faxinal System contributes to the conservation of C. prismatica genetic diversity; however, considering the economic potential of the species and to minimize impacts on the existing fragments, there is a need to work with the local population to ensure sustainable forest management of the species.

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Research Article Genetic structure and diversity of <i>Senefeldera verticillata</i> (Euphorbiaceae) in semideciduous seasonal forest fragments

Cited by 4 publications

References 10 publications

EVALUATION OF DIVERSITY AND GENETIC STRUCTURE AS STRATEGIES FOR CONSERVATION OF NATURAL POPULATIONS OF Dalbergia nigra (Vell.) Allemão ex Benth.

EVALUATION OF DIVERSITY AND GENETIC STRUCTURE AS STRATEGIES FOR CONSERVATION OF NATURAL POPULATIONS OF Dalbergia nigra (Vell.) Allemão ex Benth.

Genetic characterization of remaining populations of paratecoma peroba, an endangered and endemic species of the atlantic forest

Does the faxinal system help to maintain the genetic diversity of Curitiba prismatica (D.Legrand) Salywon & Landrum?

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