Pollen molecular biology: Applications in the forensic palynology and future prospects: A review

Alotaibi, Saqer S.; Sayed, Samy; Alosaimi, Manal E.; Alharthi, Raghad; Banjar, Aseel; Abdulqader, Nosaiba; Alhamed, Reem Abdulla

doi:10.1016/j.sjbs.2020.02.019

Cited by 35 publications

(15 citation statements)

References 32 publications

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“…Recently, the focus of digital earth technol-ogies (such as remote sensing and GIS)-based archaeological applications has moved away from survey, mapping, monitoring, and documentation to the deep-mining of archaeological big data, archaeological knowledge discovery and understanding, and settlement pattern analysis and paleolandscape reconstruction [8]. Molecular biology technologies such as DNA and starch grain analysis are also consistently being applied in this field [5,[150][151][152][153][154]. These improvements and transformations have been jointly pushing environmental archaeology toward a new stage.…”

Section: Conclusion and Prospectsmentioning

confidence: 99%

Holocene Environmental Archaeology of the Yangtze River Valley in China: A Review

Zhu

et al. 2021

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The Yangtze River Valley is an important economic region and one of the cradles of human civilization. It is also the site of frequent floods, droughts, and other natural disasters. Conducting Holocene environmental archaeology research in this region is of great importance when studying the evolution of the relationship between humans and the environment and the interactive effects humans had on the environment from 10.0 to 3.0 ka BP, for which no written records exist. This review provides a comprehensive summary of materials that have been published over the past several decades concerning Holocene environmental archaeology in the Yangtze River Valley, to further understand large-scale regional Holocene environmental and cultural interaction within this area. The results show that: 1) in recent years, Holocene envi-ronmental archaeology research in the Yangtze River Valley has primarily taken paleoflood and sea-level change stratigraphical events to be the foundational threads for study. This began with research on the spatiotemporal distribution of archaeological sites, typical archaeological site stratigraphy, and research on background features concerning environmental evolution recorded by the regional natural sedimentary strata. 2) Significant progress has been made at the upper, middle, and lower reaches of the Yangtze River, indicating that Holocene environmental ar-chaeology research along the Yangtze River Valley is deepening and broadening. 3) Dramatic changes to Neolithic cultures that occurred approximately 4.0 ka BP were influenced by climate change and associated consequences, although the impacts differed on the various Neolithic cultures in the Yangtze River Valley. Local topography, regional climate, and varying survival strategies may have contributed to these differences. 4) Newly-published research pays particular attention to the sedimentary records of the past with resolutions as high as one year to several months, the degree to which humans altered the quality of their natural environment, and human adjustments to settlement and subsistence practices during periods of Holocene climate change. The application of technologies such as remote sensing, geographic information systems (GIS), and molecular biological analysis are also gradually being extended into the research field of Holocene environmental archaeology in the Yangtze River Valley.

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Section: Conclusion and Prospectsmentioning

confidence: 99%

Holocene Environmental Archaeology of the Yangtze River Valley in China: A Review

Zhu

et al. 2021

Land

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“…Dentre as técnicas empregadas para identificação das fontes de recursos tróficos utilizadas por abelhas sociais, o uso da palinologia é frequente (PAREDES; BRYANT, 2020). A palinologia é a ciência que estuda o grão de pólen, sendo esta subdividida em aeropalinologia, entomopalinologia, iatropalinologia, paleoecologia, paleopalinologia, palinologia forense, melissopalinologia, entre outras com aplicações diversas (ALOTAIBI et al, 2020;BARTH, 2013). A melissopalinologia é o estudo do grão de pólen em produtos da colmeia, que auxilia na identificação da flora visitada pelas abelhas para coletas de recursos tróficos (MATOS;SANTOS, 2017;SANTOS, 2014).…”

Section: Introductionunclassified

Atlas polínico de plantas de interesse apícola/meliponícola para o Recôncavo Baiano

Nascimento¹,

Machado²,

Sodré³

et al. 2021

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A análise polínica de produtos da colmeia é uma das linhas de atuação do Grupo de Pesquisa Insecta desde o ano 2000, com resultados promissores e inserindo na pesquisa científica relacionada à melissopalinologia alunos de iniciação científica, mestrado e doutorado, além de pós-doutorandos. O grupo conta com publicação em periódicos nacionais e internacionais, onde são divulgados resultados de estudos de fontes poliníferas e nectaríferas exploradas por abelhas sociais como Apis mellifera Linnaeus, 1758 e Meliponini (Melipona spp.), sendo a identificação da flora explorada por estas abelhas, realizada em sua maioria por meio de estudos palinológico dos produtos da colmeia. O livro “Atlas polínico de plantas de interesse apícola/meliponícola para o Recôncavo Baiano” é resultado de um amplo espectro de estudos relacionados à análise polínica de produtos da colmeia de abelhas sociais realizado pelos autores, especialmente os projetos de iniciação cientifica e mestrado desenvolvidos no período de 2005 a 2009, que contribuíram de forma expressiva para coleção de referências de grãos de pólen (palinoteca) de plantas de interesse apícola e meliponícola do Núcleo de Estudo dos Insetos da Universidade Federal do Recôncavo da Bahia. A apresentação da descrição polínica de táxons das principais famílias apontadas como potenciais para apicultura e meliponicultura na região do Recôncavo Baiano, contribuirá na identificação de tipos polínicos em produtos da colmeia em estudos futuros. Comumente, estudos relacionados à identificação da flora visitada pela abelha a partir de seus produtos (mel, pólen apícola, samburá, própolis e geoprópolis) utilizam a análise polínica. Porém, a identificação dos tipos polínicos (conjunto de grãos pólen) é um trabalho que requer treinamento, conhecimento e dedicação, sendo necessário consultas a palinoteca (coleção de grão pólen de referências), atlas e catálogos polínicos, bem como outras publicações pertinentes. Nesse sentido, este livro apresenta um conteúdo relevante e que pode auxiliar muitos trabalhos de pesquisa, contribuindo para identificação da flora visitada por abelhas sociais, especialmente no Recôncavo Baiano.10.35587/brj.ed.0000891

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“…In this case, manually checking an unfiltered dataset for unplausible taxa could limit the amount of false negatives. Moreover, integrating DNA metabarcoding data with traditional (quantitative) morphology of pollen could improve results reliability and interpretation [101]. This could possibly control for the presence of spurious information from DNA metabarcoding.…”

Section: Discussionmentioning

confidence: 99%

Harnessing the Power of Metabarcoding in the Ecological Interpretation of Plant-Pollinator DNA Data: Strategies and Consequences of Filtering Approaches

et al. 2021

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Although DNA metabarcoding of pollen mixtures has been increasingly used in the field of pollination biology, methodological and interpretation issues arise due to its high sensitivity. Filtering or maintaining false positives, contaminants, and rare taxa or molecular features could lead to different ecological results. Here, we reviewed how this choice has been addressed in 43 studies featuring pollen DNA metabarcoding, which highlighted a very high heterogeneity of filtering methods. We assessed how these strategies shaped pollen assemblage composition, species richness, and interaction networks. To do so, we compared four processing methods: unfiltering, filtering with a proportional 1% of sample reads, a fixed threshold of 100 reads, and the ROC approach (Receiver Operator Characteristic). The results indicated that filtering impacted species composition and reduced species richness, with ROC emerging as a conservative approach. Moreover, in contrast to unfiltered networks, filtering decreased network Connectance and Entropy, and it increased Modularity and Connectivity, indicating that using cut-off thresholds better describes interactions. Overall, unfiltering might compromise reliable ecological interpretations, unless a study targets rare species. We discuss the suitability of each filtering type,plead for justifying filtering strategies on biological or methodological bases and for developing shared approaches to make future studies more comparable.

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Pollen molecular biology: Applications in the forensic palynology and future prospects: A review

Cited by 35 publications

References 32 publications

Holocene Environmental Archaeology of the Yangtze River Valley in China: A Review

Holocene Environmental Archaeology of the Yangtze River Valley in China: A Review

Atlas polínico de plantas de interesse apícola/meliponícola para o Recôncavo Baiano

Harnessing the Power of Metabarcoding in the Ecological Interpretation of Plant-Pollinator DNA Data: Strategies and Consequences of Filtering Approaches

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