Conservation choice on the rare endangered plants Glehnia littoralis

Pan, Ying; Chu, Jianmin; Yang, Hongqiang

doi:10.1093/conphys/coy002

Cited by 9 publications

(3 citation statements)

References 32 publications

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“…Secondly, the destruction of beach habitats by human factors, such as excessive excavation and coastal development, is another possible reason for the decline of G. littoralis, as reported previously [51,55,59]. Human domestication and cultivation can avoid the influences of the above adverse environmental factors, but Pan et al [60] found that the cultivated G. littoralis have experienced significant declines relative to the wild ones, and human cultivation was believed to be insufficient for conserving G. littoralis. Based on the above findings, we suggest that the conservation strategy for G. littoralis should include the protection of all the original populations to the extent possible.…”

Section: Cluster Analysis Results Revealed By Its and Rapdmentioning

confidence: 85%

Potential biological mechanisms underlying the endangered status of Glehnia littoralis revealed by nrDNA ITS and RAPD analyses

Zhang

et al. 2020

Biotechnology & Biotechnological Equipment

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Certain biological mechanisms of Glehnia littoralis, an endangered medicinal plant in China, may be underlying its endangered status and this has attracted extensive attention from researchers. In this study, nuclear ribosomal DNA internal transcribed spacer (nrDNA ITS) sequences and random amplified polymorphic DNA (RAPD) were investigated to determine the genetic diversity of G. littoralis. A total of 291 samples from 11 G. littoralis populations were collected from the east coast of China. The high genetic diversity and large genetic differentiation within populations were reconfirmed by both ITS (Ht ¼ 0.576, Hs ¼ 0.512, G st ¼ 0.1526) and RAPD analyses (Ht ¼ 0.51, Hs ¼ 0.35, G st ¼ 0.31). The phylogenetic trees showed consistent topologies based on ITS and RAPD; all populations were divided into two clades. Mantel tests (ITS: r ¼ 0.3296, p ¼ 0.067; RAPD: r ¼ 0.036, p ¼ 0.418) showed no significant positive correlation between the geographical distance and genetic distance for G. littoralis populations. These results showed that G. littoralis has great evolutionary potential and its status as endangered might be related to special dispersal and germination mechanisms of its seeds, as well as habitat destruction. In conclusion, we suggest that the conservation strategy for G. littoralis should be based on the protection of all the wild populations to the extent possible.

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Section: Cluster Analysis Results Revealed By Its and Rapdmentioning

confidence: 85%

Potential biological mechanisms underlying the endangered status of Glehnia littoralis revealed by nrDNA ITS and RAPD analyses

Zhang

et al. 2020

Biotechnology & Biotechnological Equipment

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“…simplicifolia Cham. (Yang et al 2012), suggesting that the seeds of G. littoralis have the potential for dispersal via sea currents (Pang et al 2018). In addition to buoyancy of the diaspores, the longevity of seeds during seed flow is inevitable for the accomplishment of long-distance gene flow (Alafeh and Kadereit 2006).…”

Section: Discussionmentioning

confidence: 99%

Genetic diversity among Japanese local populations of an edible and medicinal coastal plant Glehnia littoralis F. Schmidt ex Miq.

Tamura

Kubo

Ohsako

2021

Genet Resour Crop Evol

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To assess the current genetic status of a useful coastal plant Glehnia littoralis F. Schmidt ex Miq. in Japan, the genetic diversity within and among natural populations was investigated. A total of 601 individuals from 32 local populations were genotyped using inter-primer binding site (iPBS) markers. In addition, most likelihood inference of the outcrossing rate was determined based on genotyping of maternal families from two populations using newly developed microsatellite markers. A total of 34 polymorphic bands were detected with seven iPBS primers. All populations showed genetic variation, with Shannon's I ranging from 0.577 to 0.107. Analysis of molecular variance (AMOVA), neighbor-joining analysis, and Bayesian cluster analysis revealed that the populations were differentiated into a group on the Sea of Japan coast and another on the Pacific Ocean coast. Furthermore, populations in geographic proximity were genetically more similar to each other. These results suggested that long-distance gene flow among local populations is limited. Nonetheless, a high within-population component of genetic diversity after AMOVA (77.4%) and high population's Q values (an average of 0.781) indicated that the level of genetic differentiation among populations is moderate. Outcrossing rate estimates based on eight microsatellite loci were 0.88 to 0.80 for two different populations, showing the mostly panmictic nature of the species. Substantial level of genetic variation within and among populations implicates that genetic improvement on desirable traits is possible via artificial selection. On the other hand, the present study showed that maintenance of population size is critical to avoid fitness decline in natural populations via inbreeding depression and fixation of deleterious alleles by genetic drift.

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“… Yanxia Pan and colleagues (2018) compared the cultivated plant to its wild relatives to find how it had changed since domestication. They wanted to know how buoyant the seeds were in seawater and how well they germinated after immersion.…”

mentioning

confidence: 99%

Domestic dilemma: when cultivated plants lose their wild side

Haynes

2018

Conservation Physiology

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Conservation choice on the rare endangered plants Glehnia littoralis

Cited by 9 publications

References 32 publications

Potential biological mechanisms underlying the endangered status of Glehnia littoralis revealed by nrDNA ITS and RAPD analyses

Potential biological mechanisms underlying the endangered status of Glehnia littoralis revealed by nrDNA ITS and RAPD analyses

Genetic diversity among Japanese local populations of an edible and medicinal coastal plant Glehnia littoralis F. Schmidt ex Miq.

Domestic dilemma: when cultivated plants lose their wild side

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