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Journal of Integrative Agriculture  2020, Vol. 19 Issue (10): 2451-2457    DOI: 10.1016/S2095-3119(20)63282-8
Special Issue: 园艺-栽培生理/资源品质合辑Horticulture — Physiology · Biochemistry · Cultivation
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A new species of Malus in China, Malus shizongensis Liu sp. nov
LIU Zhen-zhong1, LI Zhong-xing2, GAO Hua1, BAO Cha-na2 
1 College of Horticulture, Northwest A&F University, Yangling 712100, P.R.China
2 State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling 712100, P.R.China
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Abstract  
Based on morphological, molecular biological, and molecular systematic studies, we describe here a new species of Malus from Yunnan, China.  We compared the morphology of this new species, Malus shizongensis Liu sp. nov, with three Malus species, including M. hupehensis, M. baccata, and M. micromalus.  Although the appearance of M. shizongensis was similar to these three species, it differed in height, branch color, branch hair, and flower color.  To better identify the taxonomy of this new species, genome of M. shizongensis and that of seven Malus species, including M. prunifolia, M. sylvestris, M. sieversii, M. hupehensis, M. baccata, M. robusta, and M. micromalus were analyzed.  A phylogenetic tree based on genome analysis indicated that M. shizongensis was close to M. hupehensis.  Furthermore, M. shizongensis had its species-specific SNPs, and the number of species-specific SNPs was similar to that of three close species (M. hupehensis, M. baccata, and M. micromalus).  Based on the above information, we named this new species as M. shizongensis Liu sp. nov.
Keywords:  Malus        new species        taxonomy  
Received: 30 December 2019   Accepted:
Fund: This work was supported by the Shaanxi Provincial Science and Technology Project, China (K3310216042, K3360217106).
Corresponding Authors:  Correspondence BAO Cha-na, Tel/Fax: +86-29-87082648, E-mail: baochana1996@163.com   
About author:  LIU Zhen-zhong, E-mail: liuzzes@sina.com;

Cite this article: 

LIU Zhen-zhong, LI Zhong-xing, GAO Hua, BAO Cha-na. 2020. A new species of Malus in China, Malus shizongensis Liu sp. nov. Journal of Integrative Agriculture, 19(10): 2451-2457.

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