同源四倍体水稻：低育性机理、改良与育种展望

doi:10.16288/j.yczz.23-074

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Hereditas(Beijing) ›› 2023, Vol. 45 ›› Issue (9): 781-792.doi: 10.16288/j.yczz.23-074

• Review • Previous Articles Next Articles

Autotetraploid rice: challenges and opportunities

Xiangdong Liu^1,^2,³(), Jinwen Wu^1,^2,³, Zijun Lu^1,^2,³, Muhammad Qasim Shahid^1,^2,³

1. State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou 510642, China
2. Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
3. Guangdong Provincial Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou 510642, China

Received:2023-03-27 Revised:2023-06-16 Online:2023-09-20 Published:2023-06-26
Contact: Xiangdong Liu E-mail:xdliu@scau.edu.cn
Supported by:
Laboratory of Lingnan Modern Agriculture Project(NT2021001);Base Bank of Lingnan Rice Germplasm Resources Project(2023-40)

Abstract

Abstract:

Autotetraploid rice is a type of germplasm developed from the whole genome duplication of diploid rice, leading to large grains, high nutrient content, and resistance. However, its low fertility has reduced yield and hampered commercialization. To address this issue, a new type of high fertility tetraploid rice was developed, which may serve as a useful germplasm for polyploid rice breeding. In this review, we summarize the progress made in understanding the cellular and molecular genetic mechanisms underlying the low fertility of autotetraploid rice and its F₁hybrid, as well as the main types of new tetraploid rice with high fertility. Lastly, the idea of utilizing the multi-generation heterosis of neo-tetraploid rice in the future is proposed as a reference for polyploid rice breeding.

Key words: rice, autotetraploid rice, neo-tetraploid rice, PMeS polyploid rice, heterosis utilization

Xiangdong Liu, Jinwen Wu, Zijun Lu, Muhammad Qasim Shahid. Autotetraploid rice: challenges and opportunities[J]. Hereditas(Beijing), 2023, 45(9): 781-792.

Figures/Tables 3

Table 1

Fig. 1

Fig. 2

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材料	花粉育性（%）	结实率（%）	染色体构型	参考文献
二倍体水稻	96.32±2.67	85.06±8.06	(0.20~0.83) I+(11.17~11.90) II^① (0.16~1.18) I+(11.41~11.92) II^②	[28~30]
同源四倍体水稻	69.10±17.61	33.83±16.05	(0.09~1.03) I+(5.67~13.21) II+(0.04~1.23) III+(4.83~8.71) IV+ (0.00~0.19) V + (0.00~0.36) VI^①(0.25~4.13) I+(5.36~14.54) II+(0.13~1.26) III+(4.49~8.29) IV+ (0.00~0.28) V + (0.00~0.37) VI^②	[10, 11, 17, 21, 26, 29,30,31,32]
二倍体水稻籼粳杂种F₁	30.51±1.63	30.34±19.70	(0.74±0.38) I+(11.26±0.19) II^① (0.23±0.04) I+(11.77±0.11) II^②	[33, 34]
同源四倍体水稻籼粳杂种F₁	52.96±38.49	47.91±12.09	(0.23~0.72) I+(10.26~13.00) II+(0.08~0.64) III+(5.23~6.65) IV^①(0.57~1.33) I+(10.89~15.79) II+(0.05~0.53) III+(3.74~6.27) IV^②	[33~35]
PMeS多倍体水稻	--^③	77.14±3.71	(0.03~0.04) I+(15.83~15.86) II+(0.03~0.04) III+(4.15~4.38) IV+(0.02~0.03) VI^①	[10]
高育性四倍体水稻恢复系	81.27±0.72	72.35±1.91	(0.05~0.11) I+(19.17~19.96) II+(0.01~0.09) III+(2.20~2.26) IV+(0.00~0.01) VI^②	[36]
高育性四倍体水稻恢复系杂种F₁	86.69±1.01	80.5±2.12	(0.06~0.02) I+(14.36~17.67) II+(0.01~0.06) III+(3.10~4.80) IV +(0.00~0.01) VI+(0.00~0.01) VIII^②	[36, 37]
新型四倍体水稻	90.79±5.13	75.21±5.81	(0.06~0.53) I+(4.89~10.17) II+(0.02~0.37) III+(6.85~9.45) IV+(0~0.02) VI^①	[13, 31, 32, 38,39,40,41]
新型四倍体水稻杂种F₁	80.34±4.73	76.42±5.64	(1.62±0.22) I+(8.71±0.40) II+(0.33±0.06) III+(6.84±0.73) IV+(0.01±0.01) V+(0.07±0.03) VI	[31, 32]

Autotetraploid rice: challenges and opportunities

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