Breeding and application of a high combining ability，round-grain japonica CMS line Jiahe 3686A

doi:10.16178/j.issn.0528-9017.20260189

Abstract

Abstract:

Jiahe 3686A is a BT-type late-maturing late-season japonica three-line CMS line developed by the Jiaxing Academy of Agricultural Sciences. It was bred by using the high combining ability round-grain japonica line Jiahe 3686B as the male parent and the BT-type CMS donor 151A as the female parent，followed by multiple generations of backcrossing. This line exhibits a compact plant type，strong tillering ability，round grains，and favorable traits for seed production and propagation. The line was certified by the Zhejiang Provincial Crop Variety Approval Committee in December 2025. The hybrid combination Jiaheyou 726（Jiahe 3686A × G7263），developed using this CMS line，was approved by the National Crop Variety Approval Committee in 2021.

Key words: rice, japonica CMS line, Jiahe 3686A, round grain, breeding

CLC Number:

S511

PAN Yueyun, NI Suhong, SHAN Chengyan, DING Zhengquan, SHI Yang, HUANG Haixiang, SHAO Jie. Breeding and application of a high combining ability，round-grain japonica CMS line Jiahe 3686A[J]. Journal of Zhejiang Agricultural Sciences, 2026, 67(7): 1607-1611.

时间	地点	组合			选育目标、内容
2006春	海南	嘉粳2335	×	嘉67	嘉禾3686B（嘉粳2335/嘉67//秀水110）
		↙
2006秋	嘉兴	F?	×	秀水110	复交
			↓
2007春	海南		F?		择优混收
			↓?
2007秋	嘉兴		F?		选择优良单株
			↓?
2008春	海南		F?		选择优良单株
			↓?
2008秋	嘉兴		F?		选择优良单株，抗性鉴定
			↓?
2009春	海南		F?		选择优良单株，抗性鉴定
				↘?
2009秋	嘉兴	151A	×	F? (嘉禾3686)	选择优良稳定株系，定名嘉禾3686，并与151A测交
		↙		↓?
2010春	海南	BC?F?	×	嘉禾3686B	选择优良母本，继续回交
		↙		↓?
2010秋	嘉兴	BC?F?	×	嘉禾3686B	选择优良母本，继续回交
		↙		↓?
2011春	海南	BC?F?	×	嘉禾3686B	选择优良母本，继续回交
		↙		↓?
2011秋	嘉兴	BC?F?	×	嘉禾3686B	继续回交，不育性育性检测
		↙		↓?
2012春	海南	BC₅F?	×	嘉禾3686B	继续回交，不育性育性检测
		↙		↓?
2012秋	嘉兴	BC?F?	×	嘉禾3686B	不育性已经稳定，选择初步稳定株系
		↙		↓?
2013春	海南	BC?F?	×	嘉禾3686B	不育性稳定，用恢复系进行测交，筛选株型好的优良组合
		↙		↓?
2013秋	嘉兴	BC?F?	×	嘉禾3686B	不育系稳定，小面积繁种
		↙		↓?
2014春	海南	BC?F?	×	嘉禾3686B	不育性稳定，小面积制种
		↙		↓?
2014秋	嘉兴	BC??F?	×	嘉禾3686B	不育性稳定，定名：嘉禾3686A，并杂交组合试种、品比
		↙		↓?
		嘉禾3686A		嘉禾3686B

时间	地点	组合			选育目标、内容
2006春	海南	嘉粳2335	×	嘉67	嘉禾3686B（嘉粳2335/嘉67//秀水110）
		↙
2006秋	嘉兴	F?	×	秀水110	复交
			↓
2007春	海南		F?		择优混收
			↓?
2007秋	嘉兴		F?		选择优良单株
			↓?
2008春	海南		F?		选择优良单株
			↓?
2008秋	嘉兴		F?		选择优良单株，抗性鉴定
			↓?
2009春	海南		F?		选择优良单株，抗性鉴定
				↘?
2009秋	嘉兴	151A	×	F? (嘉禾3686)	选择优良稳定株系，定名嘉禾3686，并与151A测交
		↙		↓?
2010春	海南	BC?F?	×	嘉禾3686B	选择优良母本，继续回交
		↙		↓?
2010秋	嘉兴	BC?F?	×	嘉禾3686B	选择优良母本，继续回交
		↙		↓?
2011春	海南	BC?F?	×	嘉禾3686B	选择优良母本，继续回交
		↙		↓?
2011秋	嘉兴	BC?F?	×	嘉禾3686B	继续回交，不育性育性检测
		↙		↓?
2012春	海南	BC₅F?	×	嘉禾3686B	继续回交，不育性育性检测
		↙		↓?
2012秋	嘉兴	BC?F?	×	嘉禾3686B	不育性已经稳定，选择初步稳定株系
		↙		↓?
2013春	海南	BC?F?	×	嘉禾3686B	不育性稳定，用恢复系进行测交，筛选株型好的优良组合
		↙		↓?
2013秋	嘉兴	BC?F?	×	嘉禾3686B	不育系稳定，小面积繁种
		↙		↓?
2014春	海南	BC?F?	×	嘉禾3686B	不育性稳定，小面积制种
		↙		↓?
2014秋	嘉兴	BC??F?	×	嘉禾3686B	不育性稳定，定名：嘉禾3686A，并杂交组合试种、品比
		↙		↓?
		嘉禾3686A		嘉禾3686B

类别	染色体	基因	功能
产量	5	GS5	增加粒宽
抽穗期	11	GATA28	延迟抽穗
抽穗期	1	HESO1/OsHESO1	延迟抽穗
生物逆境	4	PiPR1	增强稻瘟病抗性
	12	Pita	增强稻瘟病抗性
	11	Xa26/Xa3	增强白叶枯病抗性
非生物逆境	4	BET1	提高硼毒耐性
	9	bZIP73	提高耐寒性
	9	DRO1	增加根部深度提高耐旱性
	11	HAN1	提高耐寒性
	2	NRAT1	提高铝毒耐性
	4	OsJAZ1	增加根部长度与重量
	1	OsPP15	提高耐旱性
	3	qLTG3-1	提高低温发芽势
食味品质	1	OsAAP6	降低种子蛋白质含量
食味品质	6	Wx^b	直链淀粉含量较低
育性与恢复性	6	S5-ORF3-	籼粳杂种不育基因
	6	S5-ORF4+	籼粳杂种不育基因
	6	S5-ORF5-	广亲和基因
其他	3	BOC1	减少愈伤组织褐化
	6	OsHKT2；1	提高钾利用效率
	1	qSH1	增加落粒性

类别	染色体	基因	功能
产量	5	GS5	增加粒宽
抽穗期	11	GATA28	延迟抽穗
抽穗期	1	HESO1/OsHESO1	延迟抽穗
生物逆境	4	PiPR1	增强稻瘟病抗性
	12	Pita	增强稻瘟病抗性
	11	Xa26/Xa3	增强白叶枯病抗性
非生物逆境	4	BET1	提高硼毒耐性
	9	bZIP73	提高耐寒性
	9	DRO1	增加根部深度提高耐旱性
	11	HAN1	提高耐寒性
	2	NRAT1	提高铝毒耐性
	4	OsJAZ1	增加根部长度与重量
	1	OsPP15	提高耐旱性
	3	qLTG3-1	提高低温发芽势
食味品质	1	OsAAP6	降低种子蛋白质含量
食味品质	6	Wx^b	直链淀粉含量较低
育性与恢复性	6	S5-ORF3-	籼粳杂种不育基因
	6	S5-ORF4+	籼粳杂种不育基因
	6	S5-ORF5-	广亲和基因
其他	3	BOC1	减少愈伤组织褐化
	6	OsHKT2；1	提高钾利用效率
	1	qSH1	增加落粒性

[1]	郭韬，余泓，邱杰，等. 中国水稻遗传学研究进展与分子设计育种［J］. 中国科学：生命科学，2019，49（10）：1185-1212.
[2]	Wei X， Qiu J， Yong K C，et al. A quantitative genomics map of rice provides genetic insights and guides breeding［J］. Nature Genetics，2021，53（2）：243-253.
[3]	杨江义. 水稻杂种不育及广亲和的基因互作研究［D］. 武汉：华中农业大学，2013.

Breeding and application of a high combining ability，round-grain japonica CMS line Jiahe 3686A

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