Genetic diversity of Toona sinensis Roem in China revealed by ISSR and SRAP markers

Xing, Peng; Liu, T; Song, Zhenqiao; Li, X F

doi:10.4238/gmr.15038387

Cited by 12 publications

(12 citation statements)

References 29 publications

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“…It is a powerful tool for estimating the characteristics of genetic diversity and distinguishing among individuals from different sources (EL-Bakatoushi & Ahmed, 2018; Nair et al, 2018; Kumar & Agrawal, 2017; Zheng et al, 2012). Sequence-related amplified polymorphism (SRAP) and inter-simple sequence repeats (ISSRs) markers are dominant markers based on PCR and have been widely used in different genetic diversity studies (Xing et al, 2016; Gaafara et al, 2017; Sun et al, 2018; Khalifa et al, 2016). Sequence-related amplified polymorphism is a PCR-based molecular marker developed by Li & Quiros (2001), which uses a unique dual primer design to amplify specific regions of open reading frames (ORFs).…”

Section: Introductionmentioning

confidence: 99%

Analysis of genetic population structure and diversity inMallotus oblongifoliususing ISSR and SRAP markers

Yan

Zheng

et al. 2019

PeerJ

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Background Mallotus oblongifolius, an evergreen shrub endemic to Hainan Island, China, is important both medicinally and economically. Due to its special medicinal significance and the continuing rise of market demand, its populations in the wild have been subject to long-term illegal and unrestrained collection. Hence, an evaluation of genetic variability is essential for the conservation and genetic reserve development of this species. Methods Sequence-related amplified polymorphism (SRAP) and inter-simple sequence repeat (ISSR) markers were employed to assess the genetic diversity and genetic structure of 20 natural populations of M. oblongifolius growing in different eco-geographical regions of Hainan Island, China. Results We revealed a considerable genetic diversity (h = 0.336, I = 0.5057, SRAP markers; h = 0.3068, I = 0.4657, ISSR markers) and weak genetic differentiation (Gst = 0.2764 for SRAP, Gst = 0.2709 for ISSR) with the same gene flow (Nm = 1.3092 for SRAP, Nm = 1.346 for ISSR) among the M. oblongifolius populations. The Mantel Test showed that the distribution of genetic variation among populations could not be explained by the pronounced geographical distances (r = 0.01255, p = 0.5538). All results of the Unweighted Pair Group Method with Arithmetic Mean (UPGMA), Neighbor-joining (NJ), Principal Coordinate Analysis (PCoA) and Bayesian analyses supported a habitat-specific genetic clustering model for M. oblongifolius, indicating a local adaptive divergence for the studied populations. Discussion We suggested that the habitat fragmentation and specificity for M. oblongifolius populations weakened the natural gene flow and promoted an adaptation to special habitats, which was the main reason for local adaptive divergence among M. oblongifolius.

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Section: Introductionmentioning

confidence: 99%

Analysis of genetic population structure and diversity inMallotus oblongifoliususing ISSR and SRAP markers

Yan

Zheng

et al. 2019

PeerJ

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“…Brito et al (2016) analyzed the genetic diversity of Varronia curassavica accessions and observed that 14 primers resulted in a mean amplification of 11 fragments. Xing et al (2016) observed the mean value of 6.9 fragments from 15 primers in a study with Toona sinensis Roem.…”

Section: Discussionmentioning

confidence: 99%

Research Article Analysis of genetic diversity of Hyptis pectinata (L.) Poit. plants using ISSR markers.

et al. 2017

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ABSTRACT. Hyptis pectinata, popularly known as 'sambacaitá' or 'canudinho', is a medicinal and aromatic species widely used in the Brazilian Northeast. In Sergipe, the excessive extraction of natural resources may reduce the genetic variability of native plants. Thus, molecular markers have frequently been applied to the characterization of genetic diversity as the basis for germplasm conservation and breeding programs. The objective of the present study was to evaluate the genetic diversity of H. pectinata plants collected in different municipalities of the State of Sergipe using ISSR molecular markers. Thirty-four primers were tested, nine of which were selected for providing reproducible and analyzable amplification products, resulting in 67 polymorphic bands. The expected heterozygosity ranged from 0.32 to 0.45, with a mean of 0.39. Polymorphism information content was of 0.49, which classifies the markers as moderately informative. A dendrogram was constructed

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“…and T. sureni Merr. The two species have a difference in morphology and genetic characteristics (Li et al 2015;Xing et al 2016;Jayusman et al 2017;Lin et al 2018). However, the differences in their basic wood properties, especially their anatomical properties, have not been clarified.…”

Section: Introductionmentioning

confidence: 99%

Comparison of the wood anatomy and fibers derived from Indonesian Toona sinensis Roem. and Toona sureni Merr

Jayusman¹,

Hakim

2021

BioRes

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In terms of their anatomy, there is confusion in differentiating between Toona sinensis (Juss.) Roem. and Toona sureni (Blume) Merr. In order to validate the identification of both species, reconfirmation of the primary character differences is required. The objectives of this study are the reconfirmation of the anatomical properties to confirm their differences and the evaluation of the fiber morphology in terms of pulp and paper raw material quality. The results show that there were differences in the gross physical features of the bark and the color of the wood. The wood color of T. sinensis is red-brown and darker, while T. sureni is white-yellow, leading to the nomenclature red and white surian, respectively. An anatomical view of T. sinensis shows that the annual growth ring has indistinct boundaries as a primary distinguishing anatomical feature, while T. sureni shows that the annual growth ring boundaries are distinct. The annual growth ring allows the establishment of intra-annual past and present structure-function relationships as well as its sensitivity to environmental variability. Based on the results, both species have different anatomical properties, and both species are suitable to be used as a raw material for pulp and paper production.

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Genetic diversity of Toona sinensis Roem in China revealed by ISSR and SRAP markers

Cited by 12 publications

References 29 publications

Analysis of genetic population structure and diversity inMallotus oblongifoliususing ISSR and SRAP markers

Analysis of genetic population structure and diversity inMallotus oblongifoliususing ISSR and SRAP markers

Research Article Analysis of genetic diversity of Hyptis pectinata (L.) Poit. plants using ISSR markers.

Comparison of the wood anatomy and fibers derived from Indonesian Toona sinensis Roem. and Toona sureni Merr

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