农业大数据学报 ›› 2022, Vol. 4 ›› Issue (3): 30-34.doi: 10.19788/j.issn.2096-6369.220304

• 专题——果树育种数据 • 上一篇    下一篇

2017—2021年辽宁省兴城市3个梨杂交组合F1代枝干轮纹病抗性数据集

姜淑苓(), 张艳杰, 王斐, 欧春青, 马力   

  1. 中国农业科学院果树研究所/农业农村部园艺作物种质资源利用重点实验室,兴城 125100
  • 收稿日期:2022-07-21 出版日期:2022-09-26 发布日期:2022-12-29
  • 通讯作者: 姜淑苓 E-mail:jiangshuling@caas.cn
  • 作者简介:[1] 姜淑苓|姜淑苓,女,硕士/研究员,研究方向:梨抗病育种和分子辅助育种技术; E-mail: jiangshuling@caas.cn
  • 基金资助:
    国家重点研发计划(2019YFD1001404);中国农业科学院科技创新工程项目(CAAS-ASTIP)

Dataset of the Resistance to Pear Stem ring Rot of the F1 Generations of the Three Pear Crossings in Xingcheng, Liaoning Province, from 2017 to 2021

Shuling Jiang(), Yanjie Zhang, Fei Wang, Chunqing Ou, Li Ma   

  1. Research Institute of Pomology, Chinese Academy of Agricultural Sciences / Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Germplasm Resources Utilization), Ministry of Agriculture and Rural Affairs, Xingcheng 125100, China
  • Received:2022-07-21 Online:2022-09-26 Published:2022-12-29
  • Contact: Shuling Jiang E-mail:jiangshuling@caas.cn

摘要:

由葡萄座腔菌(Botryosphaeria dothidea)引起的梨树枝干轮纹病,可造成枝干粗皮,导致树势早衰,严重影响产量。抗性品种的选育和应用是控制病害最经济有效的措施,也是梨育种的目标之一。然而对梨树枝干轮纹病的遗传规律、抗性分子标记和基因等方面的研究仍较少。文章研究采用田间自然发病调查法,调查收集了2017—2021年‘苹果梨×八月红’‘苹果梨×红香酥’‘八月红×红香酥’等3个杂交组合697株F1代梨树枝干轮纹病的田间发病情况,评价F1代对轮纹病的抗性程度。结果显示,3个杂交组合F1代中均以高抗植株数量最多,抗感分离比分别为12.2∶1、7.72∶1和5.31∶1。该数据集为今后分析轮纹病抗性遗传规律、筛选抗性分子标记、挖掘抗性基因奠定基础,为杂交组合亲本选配和抗病品种选育提供数据支撑。

关键词: 梨树, F1代, 轮纹病, 抗性, 遗传

Abstract:

The pear stem ring rot caused by Botryosphaeria dothidea can cause coarsebark, tree vigour decline, and seriously affect the yield. Breeding and application of resistant varieties are the most economical and effective measures to control this disease and also one of the objectives of pear breeding. However, there are still few researches on the genetic regularity, molecular markers and genes of resistance to pear stem ring rot. In this study, the disease severity and resistance level data of 697 F1 individuals belong to three crossings, including ‘pingguoli × Bayuehong’, ‘Pingguoli × Hongxiangsu’ and ‘Bayuehong × Hongxiangsu’, were collected from 2017 to 2021. The results showed that the number of high-resistance plants was the largest in F1 generation of the three crossings, and the isolation ratios of resistance and susceptibility were 12.2∶1, 7.72∶1 and 5.31∶1, respectively. The data will lay the foundation for analyzing the genetic rules of pear ring rot resistance, screening resistant molecular markers, and mining resistance genes in the future, and provide data support for pear hybrid combination selection and breeding of ring rot resistant varieties.

Key words: pear tree, F1 generations, ring rot, disease resistance, heredity

中图分类号: 

  • S661.2