Chromosome counts and karyotype analysis of nine taxa in Sorbus subgenera Aria and Micromeles (Rosaceae) from China

Authors

  • Yuming Qian Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037 https://orcid.org/0000-0002-7393-5099
  • Kailin Zhu Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037 https://orcid.org/0000-0003-0020-7207
  • Chenqian Tang Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037
  • Zhixin Qiu Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037
  • Xin Chen Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037 https://orcid.org/0000-0003-2315-083X

DOI:

https://doi.org/10.36253/caryologia-1387

Keywords:

chromosome number, karyotype asymmetry, Sorbus, subgenera Aria and Micromeles, China

Abstract

Chromosome numbers of nine taxa in Sorbus subgenera Aria (Pers.) Host and Micromeles Decne. were determined. All are diploid with 2n = 2x = 34. Eight out of them: S. alnifolia (Siebold and Zucc.) K. Koch var. angulata S.B. Liang Rehd., S. alnifolia (Siebold and Zucc.) K. Koch var. lobulata (C.K. Schneid.) Rehd., S. dunnii Rehd., S. folgneri (C.K. Schneid.) Rehd., S. hemsleyi (C.K. Schneid.) Rehd., S. lushanensis X. Chen & J. Qiu, S. ochracea (Hand.-Mazz.) J.E. Vidal and S. yuana Spongberg, which are endemic to China, were reported for the first time. One remaining Asian native S. alnifolia var. alnifolia (Siebold and Zucc.) K. Koch, 2n = 34 was confirmed here. The chromosomes size and the total haploid chromosome length varied from 0.91 µm to 3.51 µm and 23.43 ?m to 50.04 ?m respectively. A predominance of metacentric chromosomes were perceived. Satellites were observed only in taxa of subgenera Micromeles. Nine taxa were classified as 1A, 2A and 2B according to the Stebbins classification. S. yuana in subgenus Aria presents the most symmetrical karyotype according to all the 11 quantitative indices analyzed, while S. dunnii and S. ochracea in Micromeles present the most asymmetrical karyotypes according to different indices. 

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References

Aldasoro J.J., Aedo C., Garmendia F.M., de la Hoz F.P., Navarro C. 2004. Revision of Sorbus Subgenera Aria and Torminaria (Rosaceae-Maloideae). Systematic Botany Monographs. 69: 1–148.

Altinordu F., Peruzzi L., Yu Y., He X.J. 2016. A tool for the analysis of chromosomes: KaryoType. TAXON. 65 (3): 586–592.

Bailey J.P., Kay Q.O.N., McAllister H., Rich T.C.G. 2008. Chromosome numbers in Sorbus L. (Rosaceae) in the British Isles. Watsonia. 27: 69–72.

Baranec T., Murín A. 2003. Karyological analyses of some Korean woody plants. Biologia. 58(4):797–804.

Campbell C.S., Evans R.C., Morgan D.R., Dickinson T.A., Arsenault M.P. 2007. Phylogeny of subtribe Pyrinae (formerly the Maloideae, Rosaceae): Limited resolution of a complex evolutionary history. Plant Systematics and Evolution. 266: 119–145.

Lepší M., Lepší P., Koutecký P., Bílá J., Vít P. 2015. Taxonomic revision of Sorbus subgenus Aria occurring in the Czech Republic. Preslia. 87: 109–162.

Lepší M., Koutecky P., Noskova J. 2019. Versatility of reproductive modes and ploidy level interactions in Sorbus s.l. (Malinae, Rosaceae). Botanical Journal of the Linnean Society. 191(4):502–522.

Levan A., Fredga K., Sandberg A.A. 1964. Nomenclature for centromeric position on chromosomes. Hereditas. 52(2):201–220.

Li J.B., Zhu K.L., Wang Q., Chen X. 2021. Genome size variation and karyotype diversity in eight taxa of Sorbus sensu stricto (Rosaceae) from China. Comparative Cytogenetics. 15(2): 137–148.

Lu L.T., Spongberg S.A. 2003. Sorbus Linnaeus. In Wu Z.Y., Raven P.H., Hong D.Y. (Eds.) Flora of China, vol. 9. Rosaceae. Science Press, Beijing; Missouri Botanical Garden Press, St. Louis, pp. 144–170.

Ludwig S., Robertson A., Rich T.C.G., Djordjevi? M., Cerovi? R., Houston L., Harris S.A., Hiscock S.J. 2013. Breeding systems, hybridization and continuing evolution in Avon Gorge Sorbus. Annals of Botany. 111: 563–575.

McAllister H. 2005. The Genus Sorbus–Mountain Ash and Other Rowans. Royal Botanical Gardens, Kew, London, 252 pp.

Nelson-Jones E., Briggs D., Smith A. 2002. The origin of intermediate species of the genus Sorbus. Theoretical and Applied Genetics. 105: 953–963.

Phipps J.B., Robertson K.R., Smith P.G., Rohrer J.R. 1990. A checklist of the subfamily Maloideae (Rosaceae). Canadian Journal of Botany. 68: 2209–2269.

Rich T.C.G., Green D., Houston L., Lepší M., Ludwig S., Pellicer J. 2014. British Sorbus (Rosaceae): six new species, two hybrids and a new subgenus. New Journal of Botany. 4: 2–12.

Robertson K.R., Phipps J.B., Rohrer J.R., Smith P.G. 1991. A synopsis of genera in Maloideae (Rosaceae). Systematic Botany. 16(2): 376–394.

Robertson A., Rich T.C.G., Allen A.M., Houston L., Roberts C., Bridle J.R., Harris S.A., Hiscock S.J. 2010. Hybridization and polyploidy as drivers of continuing evolution and speciation in Sorbus. Molecular Ecology. 19: 1675–1690.

Sax K. 1931. The origin and relationships of the Pomoideae. Journal of the Arnold Arboretum. 12(1):3–22.

Sennikov A.N., Kurtto A. 2017. A phylogenetic checklist of Sorbus s.l. (Rosaceae) in Europe. Memoranda Societatis pro Fauna et Flora Fennica. 93: 1–78.

Somlyay L., Lisztes-Szabo Z., Vojtkó A., Sennikov A. 2017. Atlas Florae Europaeae Notes 31. Sorbus javorkana (Rosaceae), a Redescribed Apomictic Species from the Gömör-Torna (Gemer—Tur?a) Karst in Hungary and Slovakia. Annales Botanici Fennici. 54: 229–237.

Yü T.T. and Kuan K.C. 1963. Taxa nova Rosacearum Sinicarum (I). Acta phytotaxonomica Sinica. 8(3):202–236.

Zhang S.D., Jin J.J., Chen S.Y., Chase M.W., Soltis D.E., Li H.T., Yang J.B., Li D.Z., Yi T.S. 2017. Diversification of Rosaceae since the Late Cretaceous based on plastid phylogenomics. New Phytologist. 214: 13–55.

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Published

2022-07-07

How to Cite

Qian, Y., Zhu, K., Tang, C., Qiu, Z., & Chen, X. (2022). Chromosome counts and karyotype analysis of nine taxa in Sorbus subgenera Aria and Micromeles (Rosaceae) from China. Caryologia, 75(1), 123–130. https://doi.org/10.36253/caryologia-1387

Issue

Vol. 75 No. 1 (2022)

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Copyright (c) 2022 Yuming Qian, Kailin Zhu, Chenqian Tang, Zhixin Qiu, Xin Chen

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