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Staff photo Xiao-Ru Wang

Xiao-Ru Wang

My main research focuses on the evolutionary history of conifer trees in Eurasia.



Works at

KB. H5, Linneus väg 6, A5-36-21 Umeå universitet, 901 87 Umeå

Research area

My main research focuses on the evolutionary history of conifer trees in Eurasia. We use ecological and population genetic approaches to understand how climate and geographic factors shape the distribution of genetic diversity across landscapes, and use this knowledge to develop predicting models to forecast genetic mismatch of forest trees to climate change.

Evolutionary biology


Publications before 2008

1. Ma, X-F., Szmidt, A.E., Wang, X-R. - 2006. Genetic structure and evolutionary history of a diploid hybrid pine Pinus densata inferred from the nucleotide variation at seven gene loci. Molecular Biology and Evolution. 23:807-816.

2. Cai, Q., Zhang, D., Liu, Z-L., Wang, X-R. - 2006. Chromosomal localization of 5S and 18S rDNA in five species of subgenus Strobus and their implication to genome evolution of Pinus. Annals of Botany. 97: 715-722.

3. Zeng, Q-Y., Wang, X-R. – 2006. Divergence in structure and function of tau class glutathione transferase from Pinus tabuliformis, P. yunnanensis and P. densata. Biochemical Systematics and Ecology 34:678-690.

4. Zeng, Q-Y., Westermark, S-O., Rasmuson-Lestander, Å., Wang, X-R. – 2006. Detection and quantification of Cladosporium in aerosols by real-time PCR. Journal of Environmental Monitoring 8:153-160.

5. Zeng, Q-Y., Lu, H., Wang X-R. – 2005. Molecular characterization of a glutathione transferase from Pinus tabulaeformis (Pinaceae). Biochimie 87:445–455.

6. Zeng, Q-Y., Wang* X-R. - 2005. Catalytic properties of glutathione-binding residues in a t class glutathione transferase (PtGSTU1) from Pinus tabulaeformis. FEBS Letters 579: 2657–2662.

7. Zeng, Q-Y., Hansson, P., Wang, X-R. – 2005. Specific and sensitive detection of the conifer pathogen Gremmeniella abietina by nested PCR. BMC Microbiology 5:65.

8. Zeng, Q-Y., Rasmuson-Lestander, Å., Wang X-R. 2004. Extensive set of mitochondrial LSU rDNA-based oligonucleotide probes for the detection of common airborne fungi. FEMS Microbiology Letter 237:79-87.

9. Zeng, Q-Y., Westermark, S.-O., Rasmuson-Lestander, Å., Wang, X-R. – 2004. Detection and quantification of Wallemia sebi in aerosols by real-time PCR, conventional PCR and cultivation. Applied Environmental Microbiology. 70:7295-7302.

10. Liu, Z-L., Zhang, D., Hong, D-Y., Wang, X-R. - 2003. Chromosomal localization of 5S and 18S-5.8S-25S ribosomal DNA sites in five Asian pines using fluoresence in situ hybridization. Theoretical and Applied Genetics 106: 198-204.

11. Liu, Z-L., Zhang, D., Wang, X-Q., Ma, X-F., Wang, X-R. – 2003. Intragenomic and interspecific 5S rDNA sequence variation in five Asian pines (Pinus). American Journal of Botany 90: 17-24.

12. Yin, T., Wang, X-R., Andersson, B., Lerceteau-Köhler, E. - 2003. Nearly complete genetic maps of Pinus sylvestris L. (Scots pine) constructed by AFLP markers in a full-sib family. Theoretical and Applied Genetics 106:1075-1083.

13. Wang, X-R., Chhatre, V.E., Nilsson, M-C., Song, W., Zackrisson, O., Szmidt, A.E. – 2003. Island population structure of Norway spruce (Picea abies (L.) Karst.) in northern Sweden.  International Journal of Plant Sciences. 164:711-717.

14. Wu, Z., Tsumura, Y., Blomquist, G., Wang X-R. – 2003. 18S rDNA variation among common airborne fungi, and development of specific oligonucleotide probes for the detection of fungal isolates. Applied Environmental Microbiology 69:5389-5397.

15. Zeng, Q-Y., Wang, X-R., Blomquist, G. – 2003. Development of mitochondrial SSU rDNA-based oligonucleotide probes for specific detection of common airborne fungi. Molecular and Cellular Probes 17:281-288.

16. Song, B-H., Wang, X-Q., Wang, X-R., Ding, K-Y., Hong, D-Y. - 2003. Cytoplasmic composition in Pinus densata and population establishment of the diploid hybrid pine. Molecular Ecology 12:2995-3001.

17. Kormutak, A., Vookova, B., Gomory, D., Wang, X-R., Szmidt, A. E. - 2003. Intraspecific variation in chloroplast DNA psbAI gene region of silver fir (Abies alba Mill.). Forest Genetics 10:19-22.

18. Wu, Z., Wang, X-R., Blomquist, G. - 2002. Evaluation of PCR primers and PCR conditions for specific detection of common airborne fungi. Journal of Environmental Monitoring 4: 377-382.

19. Song, B-H., Wang, X-Q., Wang, X-R., Sun, L-J., Hong, D-Y., Peng, P-H. - 2002. Maternal lineages of Pinus densata, a diploid hybrid. Molecular Ecology 11: 1057-1063.

20. Szmidt, A. E., Nilsson, M-C., Briceño, E., Zackrisson, O., Wang, X-R. – 2002. Establishment and genetic structure of Empetrum hermaphroditum Hagerup populations in Lapland, northern Sweden.  Journal of Vegetation Science 13:627-634.

21. Wu, Z., Blomquist, G., Westermark, S.-O., Wang, X-R. – 2002. Application of PCR and probe hybridization techniques in detection of airborne fungal spores in environmental samples. Journal of Environmental Monitoring 4: 673-678.

22. Szmidt, A. E., Lu, M-Z., Wang, X.-R. - 2001. Effect of RNA editing on the phylogeny reconstruction based on coxI gene. Euphytica 118: 9-18.

23. Wang, X-R., Szmidt, A. E. – 2001. Molecular markers in population genetics of forest trees.  Scandinavian Journal of Forest Research. 16: 199-220.

24. Joyner, K.L., Wang, X-R., Johnston, J. S., Price, H. J., Williams, C. G. – 2001. DNA content for Asian pines parallels New World relatives. Canadian Journal of Botany. 79: 192-196.

25. Wang, X-R., Szmidt, A. E., Savolainen, O. – 2001. Genetic composition and diploid hybrid speciation of a high mountain pine, Pinus densata, native to the Tibetan plateau. Genetics 159: 337-346.

26. Wang, X-R., Szmidt, A. E., Nguyen, H. N. - 2000. Phylogenetic position of the endemic flat-needle pine Pinus krempfii (Pinaceae) from Vietnam, based on PCR-RFLP analysis of chloroplast DNA. Plant Systematics and Evolution  220: 21-36.

27. Wang, X-R., Tsumura, Y., Yoshimaru, H., Nagasaka, K., Szmidt, A. E. – 1999. Phylogenetic relationships of Eurasian pines (Pinus, Pinaceae) based on chloroplast rbcL, matK, rpl20-rps18 spacer and trnV intron sequences. American Journal of Botany 86: 1742-1753.

28. Lu, M-Z., Szmidt, A. E., Wang, X-R. - 1998. RNA editing in gymnosperms and its impact on the evolution of the mitochondrial coxI gene. Plant Molecular Biology 37: 225-234.

29. Wang, X-R. - 1997. Genetic variability in the canker pathogen fungus, Gremmeniella abietina (Lagerb.) Morelet. Contribution of sexual compared to asexual reproduction.  Mycological Research 101:1195-1201.

30. Wang, X-R., Ennos, R.A., Szmidt, A.E., Hansson, P. - 1997. Genetic variability in the canker pathogen fungus, Gremmeniella abietina. 2. Fine scale investigation of population structure. Canadian Journal of Botany 75:1460-1469.

31. Lu, M-Z., Wang, X-R., Szmidt, A. E. - 1997. Molecular properties of RAPDs in Pinus sylvestris (L.) and their implications for genetic analysis. Forest Genetics 4: 227-234.

32. Szmidt, A. E., Wang, X-R., Changtragoon, S. - 1996. Contrasting patterns of genetic diversity in two tropical pines: Pinus kesiya (Royle ex Gordon) and P. merkusii (Jungh et De Vriese). Theoretical and Applied Genetics 92: 436-441.

33. Szmidt, A.E., Wang, X-R., Lu, M-Z. - 1996. Empirical assessment of allozyme and RAPD variation in Pinus sylvestris (L.) using haploid tissue analysis. Heredity 76: 412-420.

34. Hansson, P., Wang, X-R., Szmidt, A. E., Karlman, M. - 1996. Genetic variation of Gremmeniella abietina attacking Pinus sylvestris and Pinus contorta in northern Sweden revealed by RAPD analysis. European Journal of Forest Pathology 26: 45-55.

35. Wang, X-R., Szmidt, A.E., Lu, M-Z. - 1996. Genetic evidence for the presence of cytoplasmic DNA in pollen and megagametophytes and maternal inheritance of mitochondrial DNA in Pinus. Forest Genetics 3: 37-44.

36. Parducci, L., Szmidt, A.E., Villani, F., Wang, X-R., Cherubini, M. - 1996. Genetic variation of Abies alba (Mill.) in Italy. Hereditas 125: 11-18.

37. Lu, M-Z., Szmidt, A. E., Wang, X-R. - 1995. Segregation of RAPD markers in haploid and diploid tissues of Pinus sylvestris (L.). Heredity 74: 582-589.

38. Wang, X-R., Szmidt, A.E. - 1994. Hybridization and chloroplast DNA variation in a Pinus species complex from Asia. Evolution 48: 1020-1031.

39. Szmidt, A. E., Wang, X-R. - 1993. Molecular systematics and patterns of geographic differentiation in geographic varieties of Pinus sylvestris (L.) and P. densiflora (Sieb. et Zucc). Theoretical and Applied Genetics 86: 159-165.

40. Wang, X-R., Szmidt, A.E. - 1993. Chloroplast DNA-based phylogeny of Asian Pinus species. Plant Systematics and Evolution 188: 197-211.

41. Kormutak, A., Szmidt, A. E., Wang, X-R. - 1993. Restriction fragment length polymorphisms of chloroplast DNA in some species of firs (Abies spp.). Biologia Plantarum 35: 113-119.

42. Dong, J., Wagner, D.B., Yanchuk, A.D., Carlson, M.R., Magnussen, S., Wang, X-R., Szmidt, A.E. - 1992. Paternal chloroplast DNA inheritance in Pinus contorta and Pinus banksiana: Independence of parental species or cross direction. Journal of Heredity 83: 419-422.

43. Wang, X-R., Lindgren, D., Szmidt, A.E., Yazdani, R. ‑ 1991. Pollen migration into a seed orchard of Pinus sylvestris L. and the methods of its estimation using allozyme markers. Scandinavian Journal of Forest Research 6: 379‑385.

44. Wang, X-R., Szmidt, A.E., Lindgren, D. ‑ 1991. Allozyme differentiation among populations of Pinus sylvestris L. from Sweden and China. Hereditas 114: 219‑226.

45. Wang, X-R., Szmidt, A.E., Lewandowski, A., Wang, Z-R. ‑ 1990. Evolutionary analysis of Pinus densata (Masters), a putative Tertiary hybrid. 1. Allozyme variation. Theoretical and Applied Genetics 80: 635‑640.

46. Wang, X-R., Szmidt, A.E. ‑ 1990. Evolutionary analysis of Pinus densata (Masters), a putative Tertiary hybrid. 2. A study using species‑specific chloroplast DNA markers. Theoretical and Applied Genetics 80: 641‑647.


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Jin, Yuqing; Zhao, Wei; Nie, Shuai; et al.
Science China Life Sciences, Vol. 62, (5) : 609-618
Liu, Yan-Jing; Wang, Xiao-Ru; Zeng, Qing-Yin
GigaScience, Oxford University Press 2019, Vol. 8, (2)
Xu, Chao-Qun; Liu, Hui; Zhou, Shan-Shan; et al.
Plant and Cell Physiology, Oxford University Press 2018, Vol. 59, (2) : 392-403
Han, Xue-Min; Yang, Qi; Liu, Yan-Jing; et al.
Methods in Ecology and Evolution, British Ecological Society 2018, Vol. 9, (3) : 535-543
Olajos, Fredrik; Bokma, Folmer; Bartels, Pia; et al.
Evolutionary Applications, John Wiley & Sons 2018, Vol. 11, (10) : 1931-1945
Xia, Hanhan; Wang, Baosheng; Zhao, Wei; et al.
Quaternary Science Reviews, Elsevier 2018, Vol. 185 : 222-229
Zale, Rolf; Huang, Y. -T; Bigler, Christian; et al.
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Scientific Reports, Nature Publishing Group 2016, Vol. 6
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Journal of Forestry Research, Northeast Forestry University 2015, Vol. 26, (3) : 777-783
Chen, Xinyu; Yuan, Huwei; Hu, Xiange; et al.
Scandinavian Journal of Forest Research, Vol. 30, (7) : 573-586
Funda, Tomas; Wennstrom, Ulfstand; Almqvist, Curt; et al.
PLoS ONE, Vol. 10, (7)
Hu, Xian-Ge; Jin, Yuqing; Wang, Xiao-Ru; et al.
Molecular Ecology Resources, Vol. 15, (4) : 711-722
Pan, Jin; Wang, Baosheng; Pei, Zhi-Yong; et al.
Heredity, Vol. 114, (4) : 413-418
Wang, B.; Climent, J.; Wang, Xiao-Ru
The Plant Cell, Vol. 26, (6) : 2404-2419
Ren, Lin-Ling; Liu, Yan-Jing; Liu, Hai-Jing; et al.
Ecology and Evolution, Vol. 4, (11) : 2228-2238
Wang, Baosheng; Mahani, Marjan Khalili; Ng, Wei Lun; et al.
Molecular Phylogenetics and Evolution, Vol. 80 : 20-30
Wang, Baosheng; Wang, Xiao-Ru
Evolution, John Wiley & Sons 2014, Vol. 68, (11) : 3120-3133
Zhao, Wei; Meng, Jingxiang; Wang, Baosheng; et al.
Silvae Genetica, J.D. Sauerlaender's Verlag 2013, Vol. 62, (3) : 127-136
Androsiuk, P.; Shimono, A.; Westin, J.; et al.
Journal of Biological Chemistry, Vol. 288, (34) : 24441-24451
Lan, Ting; Wang, Xiao-Ru; Zeng, Qing-Yin
Scandinavian Journal of Forest Research, Taylor & Francis 2013, Vol. 28, (8) : 715-723
Torimaru, Takeshi; Wennstrom, Ulfstand; Andersson, Bengt; et al.
PLoS ONE, plosone 2013, Vol. 8, (6) : e67345-
Wang, Baosheng; Mao, Jian-Feng; Zhao, Wei; et al.
Molecular Ecology, John Wiley & Sons 2012, Vol. 21, (19) : 4811-4827
Gao, Jie; Wang, Baosheng; Mao, Ian-Feng; et al.
Silvae Genetica, Vol. 61, (4-5) : 133-142
Li, Wei; Wang, Xiaoru; Li, Yue
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Wei, Tao; Wang, Cai-Ling; Kao, Hong-Na; et al.
American Naturalist, Vol. 177, (4) : 424-439
Mao, Jian-Feng; Wang, Xiao-Ru
Tree Genetics & Genomes, Springer 2011, Vol. 7 : 499-509
Shimono, Ayako; Wang, Xiao-Ru; Torimaru, Takeshi; et al.
Molecular Ecology, Leicester: Blackwell Scientific Publications 2011, Vol. 20, (18) : 3796-3811
Wang, Baosheng; Mao, Jian-Feng; Gao, Jie; et al.
Tree Genetics and Genomes, Vol. 6, (2) : 227-235
Wang, Xiao-Ru; Torimaru, Takeshi; Lindgren, Dag; et al.
Genes & Genetic Systems, Vol. 84, (4) : 277-86
Inomata, Nobuyuki; Wang, Xiao-Ru; Changtragoon, Suchitra; et al.
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FEMS Microbiology Letters, Vol. 237, (1) : 79-87
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