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Zhou S.-B.,Anhui Normal University | Zhou S.-B.,The Key Laboratory of Conservation and Employment of Biological Resources of Anhui | Hong X.,Anhui Normal University | Wen F.,Anhui Normal University | And 2 more authors.
Bangladesh Journal of Plant Taxonomy | Year: 2013

A new species of Hemiboea, H. roseoalba, from Guangdong, China, is described and illustrated. It is similar to H. gracilis and H. angustifolia in leaf and flower shape, but can be distinguished by leaf blade with serrulate from the middle to the apex, lateral veins 7-9 on each side of midrib; peduncle 2.5-3.0 cm long, glabrous; cymes 4-6-flowered; triangular calyx base connate for c. 0.3 cm; pink corolla 4.0-4.3 cm long and margin of lobes curled or retroflexed; staminodes 3; pistil 3.7-4.0 cm long; disc 2 mm high and truncate stigma slightly swollen. © 2013 Bangladesh Association of Plant Taxonomists.

Hong X.,Anhui Normal University | Wang O.-W.,Anhui Normal University | Zhou S.-B.,Anhui Normal University | Zhou S.-B.,The Key Laboratory of Conservation and Employment of Biological Resources of Anhui | Wen F.,CAS Institute of Botany
Willdenowia | Year: 2014

Primulina argentea Xin Hong, F. Wen & S. B. Zhou, sp. nov. (Gesneriaceae) is described and illustrated from N Guangdong Province, S China. It is morphologically close to P. fengshanensis F. Wen & Yue Wang and P. orthandra (W. T. Wang) Mich. Möller & A. Weber, but is differentiated from its congeners by several characters of the shape, texture and indumentum of the leaf blade and bracts, length of pedicels, size of calyx lobes, colour of corolla, indumentums of staminodes, etc. A description of P. argentea together with illustrations, distribution map, habitat description and a diagnostic comparative table with P. fengshanensis and P. orthandra are presented. © 2014 BGBM Berlin-Dahlem

Zhou S.-B.,Anhui Normal University | Zhou S.-B.,The Key Laboratory of Conservation and Employment of Biological Resources of Anhui | Hong X.,Anhui Normal University | Hong X.,CAS Institute of Botany | And 3 more authors.
Bangladesh Journal of Plant Taxonomy | Year: 2014

Primulina lechangensis (Gesneriaceae), a new species from northern Guangdong province in southern China is described and illustrated. Its morphology suggests affinities to P. longicalyx, but can be distinguished from similar taxon by several distinct characters including: smaller leaf blade (2.0-3.5 × 1.0-1.2 cm), base cuneate-attenuate; smaller bracts (1.0-1.5 × c. 0.15 cm); shorter calyx lobes (0.8-0.9 cm long) tuberculate inside; smaller corolla tube (c. 2 cm long), inflated in the middle and contracted near the mouth; shorter glabrous filaments (0.3-0.4 cm long), inserted 1.3-1.5 cm from base of corolla; stamens and staminodes glabrous; pistil 1.4-1.5 cm long, and capsule c. 1.5 cm long. This species is further exemplified by photographs, and a distribution map is presented. © 2014 Bangladesh Association of Plant Taxonomists.

Hong X.,Anhui Normal University | Hong X.,The Key Laboratory of Conservation and Employment of Biological Resources of Anhui | Hong X.,Chinese Academy of Sciences | Zhou S.-B.,Anhui Normal University | And 3 more authors.
Blumea: Journal of Plant Taxonomy and Plant Geography | Year: 2014

A new species of Gesneriaceae from south-western Guangxi, China, Petrocodon villosus, is described and illustrated. It resembles P. ferrugineus, but is differentiated by several characters, such as the size of bracts, calyx and corolla, the indumentum of leaf blades, calyx, filaments and the outside of the corolla; the corolla tube shape, limb and lobes, the disc and stigma. A description of P. villosus, together with illustrations, habitat description and a diagnostic comparison are presented. © 2014 Naturalis Biodiversity Center.

Shao J.-W.,Anhui Normal University | Shao J.-W.,The Key Laboratory of Conservation and Employment of Biological Resources of Anhui | Wang J.,Anhui Normal University | Xu Y.-N.,Anhui Normal University | And 5 more authors.
Botanical Journal of the Linnean Society | Year: 2015

Understanding whether and how different habitats shape population genetics is a fundamental question and a specific goal for evolutionary and conservation biology research. This study examined genetic diversity and gene flow within and between mountain and foothill habitats of Primula merrilliana, an endangered distylous forest herb in eastern China. Eleven population characteristics, including area, size and density variation, from the two habitats were also investigated. Mountain populations had significantly higher mean genetic diversity than foothill populations, which may be explained by stronger self-incompatibility breeding system, more opportunity to use elevational shifts to track suitable sites under conditions of climate change and more heterogeneous environments in the former habitat, rather than by the differences of population size, gene flow and genetic drift intensity between them. Genetic analysis revealed that two distinct lineages, corresponding to the two habitats, diverged at China's 'Last Glaciation' (11700-67500 yr BP), suggesting this divergence was probably triggered by warmer climates during inter- (or post-) glacial periods. Low unidirectional gene flow from mountain to foothill habitats, chiefly by seed dispersal, played a more important role in overall gene flow between habitats than within-habitat gene flow. Within habitats, pollen contributes more substantially to gene flow than seed dispersal, especially in foothill habitats, possibly due to higher individual density and larger population sizes. These results have implications for the conservation in this and similar landscape areas and indicate the need to protect suitable habitats with wide elevational spans and sufficient size to permit ecological and elevational shifts in response to climatic changes. © 2015 The Linnean Society of London.

Xiang X.Y.,Anhui Normal University | Xiang X.Y.,Anqing Teachers College | Wu G.L.,Anqing Teachers College | Duan R.Y.,Anqing Teachers College | And 3 more authors.
Shengtai Xuebao/ Acta Ecologica Sinica | Year: 2015

In this study, we investigated the intraspecific and interspecific competition of Pinus dabeshanesis (P. dabeshanesis) in Dabieshan Mountains, Yuexi county of Anhui province, using Hegyi individual competitive indices (CI) model. The competition intensity was analysed from the 53 target trees and 2079 competitive trees within the P. dabeshanesis community. The results showed that intraspecific and interspecific competition intensity of P. dabeshanesis accounted for 17.11% and 82.89% in the total competition intensity, respectively, indicating a remarkable effect of the interspecific competition. The value of the main competition intensity was laid out in numerical order, i. e., Quercus serrata > P. dabeshanesis > Pinus taiwanensis > Rhododendron mariesii > Castanea seguinii > Hamamelis mollis > Stewartia sinensis > Dendrobenthamia hupehensis>Bothrocaryum controversum > Carpinus turczaninowii. Notably, the competition intensity of P. dabeshanesis decreased inversely to diameter of the breast height (DBH), which showed a stronger competition at DBH of < 25 cm and appeared weaker at DBH over 25 cm. The relationship between the whole forest competition intensity and DBH of the target tree followed the power function (CI = AD-B). In conclusion, this model could effectively predict the intraspecific and interspecific competition of P. dabeshanesis. © 2015, Science Press. All rights reserved.

Wang D.-Y.,Anhui Normal University | Chen Y.-J.,Anhui Normal University | Zhu H.-M.,Anhui Normal University | Lv G.-S.,Anhui Normal University | And 4 more authors.
Biochemical Systematics and Ecology | Year: 2014

The perennial herb Primula cicutariifolia Pax is an endangered and endemic species with narrow distribution in eastern Anhui and Zhejiang provinces of China. In this study, the levels of genetic variation and the pattern of genetic structure in five natural populations of P. cicutariifolia were assessed by inter-simple sequence repeats (ISSR) and simple sequence repeat (SSR) markers. Both markers revealed that there was remarkably low genetic variation within populations (e.g., He=0.19 and 0.18, for ISSR and SSR respectively) and high differentiation among populations (GST=0.714 and 0.611; ΦST=0.698 and 0.599, for ISSR and SSR respectively). The level of population genetic diversity was correlated to population size only detected by ISSR markers. The genetic structure of P. cicutariifolia may be explained by limited gene flow that was caused by habitat fragmentation and limited seeds and pollen dispersal ability, self breeding system and biennial life form. To protect and avoid disappearance of P. cicutariifolia, much more attentions should be paid to protect all the remnant populations and their habitats, and three management units, i.e. Tianmushan, Damodao, and Panan units, were proposed. © 2014 Elsevier Ltd.

Li X.H.,Anhui Normal University | Zhang X.P.,Anhui Normal University | Zhang X.P.,The Key Laboratory of Conservation and Employment of Biological Resources of Anhui | Zhang X.P.,The Key Laboratory of Biotic Environment and Ecological Safety in Anhui Province | And 4 more authors.
Genetics and Molecular Research | Year: 2015

Pteroceltis tatarinowii (Ulmaceae) is a scientifically and economically important temperate deciduous tree that is endemic to China. In the present study, 12 P. tatarinowii polymorphic microsatellite loci were developed using the tailed primer-M13-simple sequence repeats (TP-M13-SSR) biotin-capture method. The number of alleles per locus ranged from 2 to 10, with an average of 6.58. The observed and expected heterozygosity ranged from 0.208 to 0.958 and from 0.198 to 0.858, with average values of 0.703 and 0.710, respectively. The markers isolated in this study represent a favorable tool for further analyses of the population genetic structure and evolutionary history of this relic tree. © FUNPEC-RP.

Li X.H.,Anhui Normal University | Zhang H.,Anhui Normal University | Wang D.Y.,Anhui Normal University | Zhang L.,Anhui Normal University | And 3 more authors.
Shengtai Xuebao/ Acta Ecologica Sinica | Year: 2013

Pteroceltis tatarinowii Maxim. (Ulmaceae), a tertiary relict plant of a temperate deciduous tree species endemic to China, is widely distributed in bare limestone mountains across the mainland in China. The bark (phloem fiber) of this plant has long since been used as the sole raw material for manufacturing Chinese traditional Xuan Paper. However, the species are subject to many threats due to its distribution pattern characterized by small patches; its decreasing population size resulted from overexploitation, and reduction of the original forest ecosystem. Thus, it has now been listed as a rare and endangered plant (National Grand III) in China. Using inter-simple sequence repeat markers, the genetic diversity and structure of 628 individuals from 27 populations of P. tatarinowii were detected. A total of 66 bands, of which 63 were polymorphic, were presented from the 8 selected primers screening across all samples, with the percentage of polymorphic bands up to 95. 45%. The result of POPGENE revealed quite high level genetic diversity for the plant at the species level (PPB = 95. 45%,Ao = 1. 9545,Ae = 1. 5729,He = 0.3335,I= 0. 4980). At the population level, TS population from Gansu harbored the highest genetic diversity (PPB = 84.85%,Ao = 1. 8485,Ae = 1. 5217,He = 0. 3033,I = 0. 4516), whereas NL population from Guangdong with the lowest genetic variation (PPB = 54. 55%,Ao = 1. 5455,Ae = 1. 3135,He = 0. 1841,I = 0. 2756). The mean population genetic level (PPB=69. 98%,Ao = 1. 6998, Ae = 1. 4449, He = 0. 2561, I = 0. 3793) and population genetic differentiation of P. tatarinowii (Gst = 0. 23, ΦST = 0. 25) were both at the middle level compared to other species. Gene flow (Nm) was estimated to be 1.65. In addition, different genetic variation and patterns were found between North China and South China. Populations of North China presented higher genetic diversity (PPB = 95. 45%, He = 0. 3332, I = 0. 4964) and lower genetic differentiation (ΦST = 0. 22) than those of South China (PPB = 93. 94%, He = 0. 3220, I = 0. 4814 and ΦST = 0.25). It would seem the extant genetic pattern of P. tatarinowii was might mainly attributed to its long evolutionary history, wide-ranging distribution, outcross mating system, long life cycle and complex differences of terrain and vegetation between North China and South China. According to our aforementioned results and the evidence from our cpDNA data, in situ conservation was the preferred way to maintain the species' high level genetic diversity. Especially, much more attention should be paid to populations with higher genetic diversity (TS, JX and QY) and populations harboring peculiar cpDNA haplotypes (XA,SD,ML,NXS, LP,YF,WYS,GL,AL). In the condition of establishment of artificial plantation and germplasm bank, the above peculiar populations should been given prior consideration. Regarding the genetic pattern difference between South China and North China, more populations in South China and fewer representative populations with more individuals in North China should been sampled to obtain the utmost genetic diversity of P. tatarinowii.

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