中科发早粳1号分子设计育种

doi:10.16288/j.yczz.23-129

遗传 ›› 2023, Vol. 45 ›› Issue (9): 829-834.doi: 10.16288/j.yczz.23-129

中科发早粳1号分子设计育种

陈明江¹(), 刘贵富¹(), 肖叶青², 余泓¹(), 李家洋^1,³()

1.中国科学院遗传与发育生物学研究所，植物基因组学国家重点实验室，北京 100101
2.江西省农业科学院水稻研究所，南昌 330200
3.崖州湾国家实验室，三亚 572024

收稿日期:2023-05-08 修回日期:2023-08-04 出版日期:2023-09-20 发布日期:2023-08-15
通讯作者: 余泓,李家洋 E-mail:mjchen@genetics.ac.cn;gfliu@genetics.ac.cn;hyu@genetics.ac.cn;jyli@genetics.ac.cn
作者简介:陈明江，博士，高级工程师，研究方向：水稻新品种分子设计选育。E-mail: mjchen@genetics.ac.cn|刘贵富，硕士，研究员，研究方向：水稻新品种分子设计选育。E-mail: gfliu@genetics.ac.cn
陈明江和刘贵富并列第一作者。
基金资助:
中国科学院A类战略性先导科技专项“种子精准设计与创造”(XDA24030101);中国科学院A类战略性先导科技专项“种子精准设计与创造”(XDA240305048);国家自然科学基金项目和科技创新2030-重大项目资助(31900168)

Breeding of ZhongKeFaZaoGeng1 by molecular design

Mingjiang Chen¹(), Guifu Liu¹(), Yeqing Xiao², Hong Yu¹(), Jiayang Li^1,³()

1. State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
2. Rice Research Institute of Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China
3. Yazhouwan National Laboratory, Sanya 572024, China

Received:2023-05-08 Revised:2023-08-04 Online:2023-09-20 Published:2023-08-15
Contact: Hong Yu,Jiayang Li E-mail:mjchen@genetics.ac.cn;gfliu@genetics.ac.cn;hyu@genetics.ac.cn;jyli@genetics.ac.cn
Supported by:
Strategic Priority Research Program of the Chinese Academy of Sciences “Precision Seed Design and Breeding”(XDA24030101);Strategic Priority Research Program of the Chinese Academy of Sciences “Precision Seed Design and Breeding”(XDA240305048);National Natural Science Foundation of China and the STI 2030-Major Projects](31900168)

摘要/Abstract

摘要：

双季早稻生产是粮食产业的重要组成部分。近期，双季早粳稻品种培育取得了重要进展，育成了兼具高产、优质、高抗的中科发早粳1号等双季早粳稻新品种/系。中科发早粳1号是利用分子设计育种体系，针对双季早稻生产中长期难以解决的经济效益低、稻米品质差、早期耐寒差和易穗萌等问题，选取含有不同优异基因的空育131、南方长粒粳与吉粳88为亲本，通过关键基因筛选聚合培育而成。中科发早粳1号株型紧凑，株高90厘米，每穗粒数120粒，结实率85%，千粒重26克，每公顷产量8.25吨，主要米质指标达到部颁粳稻品种品质等级二级及以上。中科发早粳1号的成功培育将为双季早稻产业发展提供新的思路与动力。

关键词: 水稻, 双季早稻, 双季早籼稻, 双季早粳稻, 分子设计育种

Abstract:

Double-cropping early-season rice is one important part of staple crop rice. In recent years, great progress has been made in breeding the double-cropping early-season japonica rice variety, ZhongKeFaZaoGeng1 (ZKFZG1), with high yield, good quality, and high resistance. The breeding of ZKFZG1 aimed at the severe problems of low quality, low income and pre-harvest sprouting in double-cropping early-season rice production, and was achieved through molecular design by selecting three parents with different beneficial genes, KongYu131, NanFangChangLiGeng, and JiGeng88 and screening for key agronomic genes in cross-breeding. ZKFZG1 has a compact plant architecture, a plant height of ~90 cm, a number of ~120 grains per panicle, a setting rate of ~85%, a 1000-grain weight of 26 grams, a yield of 8.25 t/ha, and especially good grain quality. The successful breeding of ZKFZG1 provides a new direction for double-cropping early-season rice production.

Key words: rice, double-cropping early-season rice, double-cropping early-season indica rice, double-cropping early-season japonica rice, breeding by molecular design

陈明江, 刘贵富, 肖叶青, 余泓, 李家洋. 中科发早粳1号分子设计育种[J]. 遗传, 2023, 45(9): 829-834.

Mingjiang Chen, Guifu Liu, Yeqing Xiao, Hong Yu, Jiayang Li. Breeding of ZhongKeFaZaoGeng1 by molecular design[J]. Hereditas(Beijing), 2023, 45(9): 829-834.

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品质指标	检测结果	部颁粳稻品种品质等级
整精米率	68.3%	二级
垩白度	0.4%	一级
透明度	2级	二级
碱消值	6.6级	三级
胶稠度	82 mm	一级
直链淀粉	17.1%	一级
粒长	6.2 mm
长宽比	2.8
糙米率	84.0%
精米率	73.0%
垩白粒率	3%

中科发早粳1号分子设计育种

Breeding of ZhongKeFaZaoGeng1 by molecular design

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