Molecular Plant Breeding 2024, Vol.15, No.4, 167-177 http://genbreedpublisher.com/index.php/mpb 169 Table 1 Pollen fertility and abnormal frequency of chromosome behavior of pollen mother cells in autotetraploid and high fertility tetraploid rice (Adopted from Liu et al., 2023) Line type Pollen fertility (%) Seed set rate (%) Chromosome configuration Diploid 96.32±2.67 85.06±8.06 Diakinesis (0.20~0.83) I+(11.17~11.90) II Metaphase I (0.16~1.18) I+(11.41~11.92) II Autotetraploid 69.10±17.61 33.83±16.05 Diakinesis (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) VI① Metaphase I (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) VI② Diploid hybrid F1 (indica x japonica) 30.51±1.63 30.34±19.70 Diakinesis (0.74±0.38) I+(11.26±0.19) II Metaphase I (0.23±0.04) I+(11.77±0.11) II Autotetraploid hybrid F1 (indica x japonica) 52.96±38.49 47.91±12.09 Diakinesis (0.23~0.72) I+(10.26~13.00) II+(0.08~0.64) III+(5.23~6.65) IV Metaphase I (0.57~1.33) I+(10.89~15.79) II+(0.05~0.53) III+(3.74~6.27) IV PMeS polyploid -- 77.14±3.71 Diakinesis (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 Metaphase I -- High fertility tetraploid restore line 81.27±0.72 72.35±1.91 Diakinesis -- Metaphase I (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 High fertility tetraploid hybridF1 86.69±1.01 80.5±2.12 Diakinesis -- Metaphase I (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 Neo-tetraploid 90.79±5.13 75.21±5.81 Diakinesis (0.06~0.53) I+(4.89~10.17) II+(0.02~0.37) III+(6.85~9.45) IV+(0~0.02) VI Metaphase I -- Neo-tetraploid hybrid F1 80.34±4.73 76.42±5.64 Diakinesis (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 Metaphase I -- Figure 1 Morphological characteristics of the parents and two hybrids (Adopted from Ghaleb et al., 2020) Image caption: a, c: Plant appearance of parents and two F1 hybrids (H1 × H8 and T485 × H8); b, d: Performance of the two hybrids in the field (maturity stage); e: Panicles of H1, H8 and T485. T485, H1and H8 indicate Huanghuazhan-4x, Huaduo 1 and Huaduo 8, respectively (Adopted from Ghaleb et al., 2020)
RkJQdWJsaXNoZXIy MjQ4ODYzMg==