Classification and Identification of indica P/TGMS Lines in China
Received date: 2018-10-15
Accepted date: 2019-01-08
Online published: 2019-01-25
SUMMARY Despite extensive studies on cultivated rice, the population structure and genetic diversity of the indica photoperiod- and thermo-sensitive genic male sterility (P/TGMS) lines in China remains unclear. Using 48 simple sequence repeat (SSR) markers, we genotyped a panel of 208 indica P/TGMS lines and confirmed three subgroups, named indica-I, indica-II and indica-III, in indica P/TGMS lines. Further diversity analysis indicated indica-II had the highest genetic diversity. The genetic differentiation between indica-II and indica-III was demonstrated as the largest among the three subgroups. Moreover, indica/japonica component identification was detected that five P/TGMS lines possess indica components less than 0.900. These results improve our knowledge on the genetic background for P/TGMS lines in China and will be beneficial for hybrid rice breeding programs.
Mengchen Zhang, Shan Wang, Jianfang Yan, Shuiyong Sun, Xin Xu, Qun Xu, Xiaoping Yuan, Xinghua Wei, Yaolong Yang . Classification and Identification of indica P/TGMS Lines in China[J]. Rice Science, 2019 , 26(3) : 195 -198 . DOI: 10.1016/j.rsci.2019.01.003
| [1] | Cheng S H, Zhuang J Y, Fan Y Y, Du J H, Cao L Y.2007. Progress in research and development on hybrid rice: A super-domesticate in China.Ann Bot, 100(5): 959-966. |
| [2] | David H R, Richard F.2003. Correlation between fitness and genetic diversity.Conser Biol, 17(1): 230-237. |
| [3] | Falush D, Stephens M, Pritchard J K.2003. Inference of population structure using multilocus genotype data: Linked loci and correlated allele frequencies.Genetics, 164(4): 1567-1587. |
| [4] | Liao F M, Yuan L P.2000. Study on the fertility expression of photo-thermo-sensitive genic male sterile rice Pei’ai 64S at low temperature.Sci Agric Sin, 33(1): 1-9. (in Chinese with English abstract) |
| [5] | Liu K J, Muse S V.2005. PowerMarker: An integrated analysis environment for genetic marker analysis.Bioinformatics, 21: 2128-2129. |
| [6] | NY/T1433-2014. 2014. Protocol for Identification of Rice Varieties: SSR Marker Method. Beijing, China: China Agriculture Press. (in Chinese) |
| [7] | Pritchard J K, Stephens M, Donnelly P.2000. Inference of population structure using multilocus genotype data.Genetics, 155(2): 945-959. |
| [8] | Rohlf F.1997. NTSYS-pc: Numerical taxonomy and multivariate analysis system, version 2.00. Exeter Software, Setauket, New York. |
| [9] | Singh V K, Upadhyay P, Sinha P, Mall A K, Jaiswal S K, Singh A, Ellur R K, Biradar S, Sundaram R M, Singh S, Ahmed I, Mishra B, Singh A K, Kole C.2011. Determination of genetic relationships among elite thermosensitive genic male sterile lines (TGMS) of rice (Oryza sativa L.) employing morphological and simple sequence repeat (SSR) markers. J Genet, 90(1): 11-19. |
| [10] | Xu J J, Wang B H, Wu Y H, Du P N, Wang J, Wang M, Yi C D, Gu M H, Liang G H.2011. Fine mapping and candidate gene analysis of ptgms2-1, the photoperiod-thermo-sensitive genic male sterile gene in rice(Oryza sativa L.). Theor Appl Genet, 122: 365-372. |
| [11] | Yang J C, Peng S B, Zhang Z J, Wang Z Q, Romeo M V, Zhu Q S.2002. Grain and dry matter yields and partitioning of assimilates in japonica/indica hybrid rice. Crop Sci, 42: 766-772. |
| [12] | Yang Q K, Liang C Y, Zhuang W, Li J, Deng H B, Deng Q Y, Wang B.2007. Characterization and identification of the candidate gene of rice thermo-sensitive genic male sterile gene tms5 by mapping. Planta, 225(2): 321-330. |
| [13] | Yang S H, Cheng B Y, Shen W F, Xia J H.2009. Progress of application and breeding on two-line hybrid rice in China.Hybrid Rice, 24: 5-9. |
| [14] | Yuan L P.1994a. Increasing yield potential in rice by exploitation of heterosis. In: Virmani S S. Hybrid Rice Technology, New Developments and Future Prospects . Los Banos, Laguna,the Philippines: International Rice Research Institute: 1-6. |
| [15] | Yuan L P.1994b. Purification and production of foundation seed of rice PGMS and TGMS lines.Hybrid Rice, 6: 1-3. (in Chinese) |
/
| 〈 |
|
〉 |