Genetic similarity among Caesalpinia echinata trees and their ex situ conservation

Cupertino, Fernanda Barbosa; Melo, Sônia Cristina Oliveira; Corrêa, Ronan Xavier

doi:10.5897/ijbc11.273

Cited by 3 publications

(1 citation statement)

References 13 publications

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“…The population structure and levels of inbreeding in P. echinata has been investigated by using samples collected in seven remnant populations. Study methods have used microsatellites, random ampli ed polymorphic DNA or ampli ed fragment length polymorphism (MA Cardoso et al 1998; SRS Cardoso et al 2005;Lira et al 2003;Melo et al 2007; Cupertino et al 2014), but none of them have actually examined the long-standing hypothesis that cryptic species or subspecies exist, a hypothesis suggested by the impressive variation in lea et size, varying from 0.9 cm to 12 cm in length (Lewis, 1998).…”

Section: Introductionmentioning

confidence: 99%

Combining phylogenomic and morphological data reveals new patterns of diversity in the national tree of Brasil, Paubrasilia echinata

Rees

Neaves

Lewis

et al. 2022

Preprint

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Paubrasilia echinata (Lam.) Gagnon, H. C. Lima & G. P. Lewis (“Pau Brasil”) is the national tree of Brazil and an endangered species endemic to the Brazilian Atlantic Forest. The extensive range of distribution, spanning over 2000 km distance, is matched by extensive plasticity in leaf morphology. Three morphotypes are commonly identified based on the size of the leaflets but it is unclear if they represent distinct taxa or a single polymorphic species. This study aims to clarify the taxonomic position of the three morphotypes to inform conservation decisions. A comprehensive morphometric study based on herbarium specimens from the entire distribution range of the species was coupled with genetic analyses of population structure using genotype-by-sequencing data. We found that the three morphotypes do not match separately evolving lineages. Rather, P. echinata is composed of five genetic lineages that are geographically structured, although we did find evidence of genetic admixture in two individuals. Leaflet size varied by over 35-fold and although morphological clustering generally matched the genetic patterns, there were some overlaps, highlighting the cryptic diversity within this group. Finally, our genetic and morphological results provide some evidence that cultivated trees from different states in Brazil seem to be most closely related to a genetic lineage from northern Brazil, which suggests that more care is needed to protect and preserve the overall genomic diversity of this highly endangered and iconic species.

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Section: Introductionmentioning

confidence: 99%

Combining phylogenomic and morphological data reveals new patterns of diversity in the national tree of Brasil, Paubrasilia echinata

Rees

Neaves

Lewis

et al. 2022

Preprint

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Pigments, Dyes, and Colourants

2022

Renewable Resources for Surface Coatings, Inks, and Adhesives

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It was one of the first great achievements of chemistry in the dawning industrial age, and even before the development of plastics, to provide mankind with the annually renewing colour variety of nature in the form of synthetic dyes. Dyed clothing became affordable for the ordinary citizen. Colourful fabrics, kitchen utensils, toys, and automobiles made the world more colourful and increased the joy of life. Illustration colour printing brought a realistic impression of distant worlds into the living room at home and also has made imaginative product advertisements possible. However, the dynamic development of the textile and fashion industry and the careless disposal of its industrial waste also led to environmental pollution that posed a threat to the environment and to human and animal health. So, there is a return to natural dyes, which are perceived as more environmentally friendly and more biodegradable, especially as, even today, artisanal dye extraction and dyeing is practised as part of artisanal spinning, knitting, and weaving and has remained as a living craft in many traditional cultures of Africa, Asia, and the Scottish Highlands. Natural dyestuffs are extracted from almost all parts of plants and are obtained from lichens, algae, mosses, and mushrooms. In today's chemistry and biochemistry, instead of extracting pigments from wildlife, fungal cultivars, fungal enzymes, genetic engineering, and white biotechnology have created justified hope for enhanced large-scale dyestuff production in bioreactors for applications as food colourants, in the cosmetics industry, and in sustainable textile dyeing.

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Princípios genéticos para o manejo e a conservação de espécies arbóreas

Corrêa¹,

Gaiotto²

2019

Nossas Árvores: Conservação, Uso E Manejo De Árvores Nativas No Sul Da Bahia

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Genetic similarity among Caesalpinia echinata trees and their ex situ conservation

Cited by 3 publications

References 13 publications

Combining phylogenomic and morphological data reveals new patterns of diversity in the national tree of Brasil, Paubrasilia echinata

Combining phylogenomic and morphological data reveals new patterns of diversity in the national tree of Brasil, Paubrasilia echinata

Pigments, Dyes, and Colourants

Princípios genéticos para o manejo e a conservação de espécies arbóreas

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