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Zou Xuan, Sun Li-Yong, Wan Xiao-Xia, Chen Yao, Lin Feng, Yin Zeng-Fang. Establishment of flow cytometry system for DNA C-value determination of polyploid species in subgenus Yulania[J]. Plant Science Journal, 2020, 38(3): 369-377. DOI: 10.11913/PSJ.2095-0837.2020.30369
Citation: Zou Xuan, Sun Li-Yong, Wan Xiao-Xia, Chen Yao, Lin Feng, Yin Zeng-Fang. Establishment of flow cytometry system for DNA C-value determination of polyploid species in subgenus Yulania[J]. Plant Science Journal, 2020, 38(3): 369-377. DOI: 10.11913/PSJ.2095-0837.2020.30369

Establishment of flow cytometry system for DNA C-value determination of polyploid species in subgenus Yulania

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This work was supported by grants from the Natural and Science Foundation of Jiangsu Province (BK20171451) and Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD).

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  • Received Date: September 24, 2019
  • Revised Date: November 13, 2019
  • Available Online: October 31, 2022
  • Published Date: June 27, 2020
  • By screening different combinations of dissociation solutions and internal standards, the DNA C-values of six polyploid plants of subgen. Yulania (Magnoliaceae) were determined and analyzed by flow cytometry. Results showed that, in the screening of solution buffers and standard samples, woody plant buffer (WPB) was the best choice for subgen. Yulania. Furthermore, the peak pattern of mixed samples worked best when Magnolia stellata (Siebold & Zucc.) Maxim. was the internal standard and the coefficient of variation (CV) of the DNA peak was less than 5.0%. The C-values of M. liliiflora Desr., M. polytepala Law, R. Z. Zhou & R. J. Zhang, M. cylindrica E. H. Wilson, M. denudata Desr., Msoulangeana Soul.-Bod., and M. acuminata (L.) L ranged from (3.92 ±0.02) pg to (5.85 ±0.03) pg and the genome size ranged from (3832.13 ±24.67) Mbp to (5964.17 ±56.06) Mbp. Thus, our results showed that the optimized flow cytometry system accurately determined the DNA C-value of polyploid species in the subgen. Yulania.
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