Study on the habitat and niche of<i> Sassafras tzumu </i>(Hemsl.) Hemsl. in Zhejiang Province

Jiejie, 孙杰杰 Sun; Bo, 江波 Jiang; Chuping, 吴初平 Wu; Weigao, 袁位高 Yuan; Jinru, 朱锦茹 Zhu; Yujie, 黄玉洁 Huang; Jiejie, 焦洁洁 Jiao; Aihua, 沈爱华 Shen

doi:10.5846/stxb201804030749

Cited by 3 publications

(3 citation statements)

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“…But environmental distance of S. tzumu in this study had a greater and profounder impact on its genetic diversity than geographical distance (β E = 0.46, p < .01; β D = 0.16, p < .01; Fig. 3b), which could be attributed to its preference for warm and humid habitats based on its biological characteristics [33].…”

Section: Discussionmentioning

confidence: 55%

Environment influences the genetic structure and genetic differentiation of Sassafras tzumu (Lauraceae)

Liu,

Gong

et al. 2023

Preprint

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Background Sassafras tzumu , an elegant deciduous arboreal species, belongs to the esteemed genus Sassafras within the distinguished family Lauraceae. With its immense commercial value, escalating market demands and unforeseen human activities within its natural habitat have emerged as new threats to S. tzumu in recent decades, so it is necessary to study its genetic diversity and influencing factors, to propose correlative conservation strategies. Results In this investigation, we employed genotyping-by-sequencing technology to scrutinize the genetic diversity and structure of 106 individuals of S. tzumu, carefully gathered from 13 naturally occurring habitats in China. The primary results could be summarized as follows: the genetic diversity of S. tzumu was inferior to those of most other woody plants. Moreover, S. tzumu exhibited a moderate level of genetic differentiation (FST=0.103), with the preponderance of genetic variation residing within populations (71%). Our findings unveiled that the 13 populations could be categorically classified into four distinct genetic clusters (K = 4). Notably, the populations from Mount Hengshan (HS) and Mount Shaoshan (SS) coalesced into a single genetic cluster, while the populations from Mount Lushan (LS) and Mount Meiling (ML) formed another genetic cluster, with the remaining two populations occupying unique genetic clusters. Utilizing the multiple matrix regression with randomization (MMRR) analysis method, we unveiled that genetic distance was concurrently influenced by both geographical distance and environmental distance (r = 0.57, p < .01). However, it was noteworthy that the regression coefficient of environmental distance was nearly threefold greater than that of geographical distance, thus underscoring the prominence of environmental distance in shaping genetic distance (βE = 0.46, p < .01; βD = 0.16, p < .01). Conclusions S. tzumu had a moderate level of genetic differentiation and low genetic diversity in our study. The environmental distance of S. tzumu had a greater impact on its genetic diversity than geographical distance. It is of utmost significance to formulate and implement meticulous management and conservation strategies to safeguard the invaluable genetic resources of S. tzumu.

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Section: Discussionmentioning

confidence: 55%

Environment influences the genetic structure and genetic differentiation of Sassafras tzumu (Lauraceae)

Liu,

Gong

et al. 2023

Preprint

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“…But environmental distance of S. tzumu in this study had a greater and profounder impact on its genetic diversity than geographical distance ( β E = 0.46, p < 0.01; β D = 0.16, p < 0.01; Fig. 4 b), which could be attributed to its preference for warm and humid habitats based on its biological characteristics [ 52 ]. IBD and IBE ( β D = 0.404, p < 0.001; β E = 0.382, p < 0.001) were the major and equal contributor to genetic differentiation among 61 populations of Neolitsea sericea (Lauraceae) in the study of Cao et al [ 53 ].…”

Section: Discussionmentioning

confidence: 95%

Environment influences the genetic structure and genetic differentiation of Sassafras tzumu (Lauraceae)

Guan,

Liu,

Liu

et al. 2024

BMC Ecol Evo

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Background Sassafras tzumu, an elegant deciduous arboreal species, belongs to the esteemed genus Sassafras within the distinguished family Lauraceae. With its immense commercial value, escalating market demands and unforeseen human activities within its natural habitat have emerged as new threats to S. tzumu in recent decades, so it is necessary to study its genetic diversity and influencing factors, to propose correlative conservation strategies. Results By utilizing genotyping-by-sequence (GBS) technology, we acquired a comprehensive database of single nucleotide polymorphisms (SNPs) from a cohort of 106 individuals sourced from 13 diverse Sassafras tzumu natural populations, scattered across various Chinese mountainous regions. Through our meticulous analysis, we aimed to unravel the intricate genetic diversity and structure within these S. tzumu populations, while simultaneously investigating the various factors that potentially shape genetic distance. Our preliminary findings unveiled a moderate level of genetic differentiation (FST = 0.103, p < 0.01), accompanied by a reasonably high genetic diversity among the S. tzumu populations. Encouragingly, our principal component analysis painted a vivid picture of two distinct genetic and geographical regions across China, where gene flow appeared to be somewhat restricted. Furthermore, employing the sophisticated multiple matrix regression with randomization (MMRR) analysis method, we successfully ascertained that environmental distance exerted a more pronounced impact on genetic distance when compared to geographical distance (βE = 0.46, p < 0.01; βD = 0.16, p < 0.01). This intriguing discovery underscores the potential significance of environmental factors in shaping the genetic landscape of S. tzumu populations. Conclusions The genetic variance among populations of S. tzumu in our investigation exhibited a moderate degree of differentiation, alongside a heightened level of genetic diversity. The environmental distance of S. tzumu had a greater impact on its genetic diversity than geographical distance. It is of utmost significance to formulate and implement meticulous management and conservation strategies to safeguard the invaluable genetic resources of S. tzumu.

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“…It occurs in Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangsu, Sichuan, Yunnan, and Zhejiang Provinces of China [19], and grows in both broad-leaved evergreen and in mixed deciduous forests with an elevation of 100-1900 m [19]. This species plays a significant role in increasing the ability of soil to retain water and reducing the loss of soil to surface runoff [20]. In addition, the roots and bark of S. tzumu are often harvested from the wild and the species is used as a medicinal plant locally for treating inflammation and traumatic injuries [21].…”

Section: Introductionmentioning

confidence: 99%

Species Distribution Modeling of Sassafras Tzumu and Implications for Forest Management

Zhang

Jia

et al. 2020

Sustainability

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Sassafras tzumu (Chinese sassafras) is an economically and ecologically important deciduous tree species. Over the past few decades, increasing market demands and unprecedented human activity in its natural habitat have created new threats to this species. Nonetheless, the distribution of its habitat and the crucial environmental parameters that determine the habitat suitability remain largely unclear. The present study modeled the current and future geographical distribution of S. tzumu by maximum entropy (MAXENT) and genetic algorithm for rule set prediction (GARP). The value of area under the receiver operating characteristic curve (AUC), Kappa, and true skill statistic (TSS) of MAXENT was significantly higher than that of GARP, indicating that MAXENT performed better. Temperate and subtropical regions of eastern China where the species had been recorded was suitable for growth of S. tzumu. Relative humidity (26.2% of permutation importance), average temperature during the driest quarter (16.6%), annual precipitation (12.6%), and mean diurnal temperature range (10.3%) were identified as the primary factors that accounted for the present distribution of S. tzumu in China. Under the climate change scenario, both algorithms predicted that range of suitable habitat will expand geographically to northwest. Our results may be adopted for guiding the preservation of S. tzumu through identifying the habitats susceptible to climate change.

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Study on the habitat and niche of Sassafras tzumu (Hemsl.) Hemsl. in Zhejiang Province

Cited by 3 publications

References 0 publications

Environment influences the genetic structure and genetic differentiation of Sassafras tzumu (Lauraceae)

Environment influences the genetic structure and genetic differentiation of Sassafras tzumu (Lauraceae)

Environment influences the genetic structure and genetic differentiation of Sassafras tzumu (Lauraceae)

Species Distribution Modeling of Sassafras Tzumu and Implications for Forest Management

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