|
| 论文编号: |
|
| 论文题目: |
A New Dominant Gene E9 Conditions Early Flowering and Maturity in Soybean |
| 英文论文题目: |
A New Dominant Gene E9 Conditions Early Flowering and Maturity in Soybean |
| 第一作者: |
孔凡江，南海洋，曹东 |
| 英文第一作者: |
Kong, F. J., Nan, H. Y., Cao, D. |
| 联系作者: |
孔凡江，刘宝辉 |
| 英文联系作者: |
Kong, F. J., Liu, B. H. |
| 外单位作者单位: |
|
| 英文外单位作者单位: |
|
| 发表年度: |
2014 |
| 卷: |
54 |
| 期: |
6 |
| 页码: |
2529-2535 |
| 摘要: |
Adaptability of soybean [Glycine max (L.) Merr.] to a wide range of latitudes is attributed to the natural variation in the major genes and quantitative trait loci (QTL) that control flowering time and maturity. Identification of novel genes and understanding their molecular basis is critical to improving soybean productivity. We identified a new locus conditioning days to flowering and maturity that was detected in hybrid progeny between cultivated and wild soybeans. A backcross was made between the recurrent parent Tokei 780 and two early-flowering recombinant inbred lines (RILs; from the cross Tokei 780 x Hidaka 4, a wild soybean accession, all of which possessed an identical genotype at the major four maturity loci, E1 to E4). The segregation patterns observed in the F-2 and F-3 progeny derived from the two crosses revealed that early-flowering was controlled by a single dominant gene. The gene was fine-mapped to a 245-kb interval between markers M5 and M7 on Gm16. A tagging marker ID1 was significantly associated with the variation in days to flowering (0.82, p < 0.01) and maturity (0.76, p < 0.01) in the F-2 population. The new early-flowering gene and its tagging marker are very useful for molecular breeding towards early maturity and stable productivity of soybean under high-latitude environments. The gene symbol E9e9 has been assigned. E9E9 results in early maturity and e9e9 results in late maturity. |
| 英文摘要: |
Adaptability of soybean [Glycine max (L.) Merr.] to a wide range of latitudes is attributed to the natural variation in the major genes and quantitative trait loci (QTL) that control flowering time and maturity. Identification of novel genes and understanding their molecular basis is critical to improving soybean productivity. We identified a new locus conditioning days to flowering and maturity that was detected in hybrid progeny between cultivated and wild soybeans. A backcross was made between the recurrent parent Tokei 780 and two early-flowering recombinant inbred lines (RILs; from the cross Tokei 780 x Hidaka 4, a wild soybean accession, all of which possessed an identical genotype at the major four maturity loci, E1 to E4). The segregation patterns observed in the F-2 and F-3 progeny derived from the two crosses revealed that early-flowering was controlled by a single dominant gene. The gene was fine-mapped to a 245-kb interval between markers M5 and M7 on Gm16. A tagging marker ID1 was significantly associated with the variation in days to flowering (0.82, p < 0.01) and maturity (0.76, p < 0.01) in the F-2 population. The new early-flowering gene and its tagging marker are very useful for molecular breeding towards early maturity and stable productivity of soybean under high-latitude environments. The gene symbol E9e9 has been assigned. E9E9 results in early maturity and e9e9 results in late maturity. |
| 刊物名称: |
Crop Science |
| 英文刊物名称: |
Crop Science |
| 论文全文: |
|
| 英文论文全文: |
|
| 全文链接: |
|
| 其它备注: |
|
| 英文其它备注: |
|
| 学科: |
|
| 英文学科: |
|
| 影响因子: |
|
| 第一作者所在部门: |
|
| 英文第一作者所在部门: |
|
| 论文出处: |
|
| 英文论文出处: |
|
| 论文类别: |
|
| 英文论文类别: |
|
| 参与作者: |
|
| 英文参与作者: |
Nan, H. Y., Cao, D., Li, Y., Wu, F. F., Wang, J. L., Lu, S. J., Yuan, X. H., Cober, E. R., Abe, J., Liu, B. H. |
|
 |
