四川农业大学学报2026，Vol.44Issue(1)：1-7,7.DOI:10.16036/j.issn.1000-2650.202506663
小麦新品种蜀麦1963早熟的遗传基础
Genetic Basis of Early Maturity of the New Wheat Variety Shumai 1963
摘要
Abstract
[Objective]Functional NAM-B1 gene promotes nutrient remobilisation from stem and leaves to grains during senescence process,and is an important target gene for developing high protein,high iron(Fe)and zinc(Zn),and early maturing wheat varieties.However,whether the functional NAM-B1 gene has been included into Chinese varieties is still unknown.[Method]The NAM-B1 gene and its re-lation with grain-filling duration in the early maturing and high-yielding wheat variety Shumai 1963 was characterized through gene sequencing and grain filling rate determination.[Result]Shumai 1963 car-ries the functional NAM-B1 gene,which was associated with a high grain-filling rate.Meanwhile,both the NAM-A1 and NAM-D1 loci in Shumai 1963 are also functional allele types,namely NAM-A1a and NAM-D1 Hap1,respectively.[Conclusion]Carrying three functional NAM-1 homologous loci may be an important genetic basis for the high grain filling rate and shortened grain filling duration of Shumai 1963,thus achieving early maturity.The functional NAM-B1 gene can be used for the developing of early maturing and high-yielding wheat varieties.Shumai 1963 is a bridge parent for early maturing and high-yielding wheat breeding via the NAM-1 gene.关键词
早熟小麦/NAM-B1/蜀麦1963/籽粒快速灌浆Key words
early maturity wheat/NAM-B1/Shumai 1963/rapid grain-filling分类
农业科技引用本文复制引用
李生科,袁中伟,张连全,杨洪坤,江千涛,樊高琼,张一靖,毛龙,刘登才,郝明,祝婷婷,王佳恒,陈雪,陈雪姣,范超兰,姜博,黄林,甯顺腙..小麦新品种蜀麦1963早熟的遗传基础[J].四川农业大学学报,2026,44(1):1-7,7.基金项目
国家自然科学基金(U24A20401) （U24A20401）
四川省科技计划(2021YFYZ0002、2025YFHZ0113) （2021YFYZ0002、2025YFHZ0113）
四川省麦类产业技术体系(SCCXTD-2024-11). （SCCXTD-2024-11）
