中国农业科学 ›› 2022, Vol. 55 ›› Issue (17): 3395-3410.doi: 10.3864/j.issn.0578-1752.2022.17.011

• 园艺 • 上一篇    下一篇

关于果树种质资源与遗传育种若干问题的理解与思考

陈学森(),王楠,张宗营,毛志泉,尹成苗   

  1. 山东农业大学园艺科学与工程学院/作物生物学国家重点实验室/国家苹果工程技术研究中心/农业农村部黄淮海地区园艺作物生物学与种质创制重点实验室,山东泰安 271018
  • 收稿日期:2021-11-30 接受日期:2022-02-21 出版日期:2022-09-01 发布日期:2022-09-07
  • 作者简介:陈学森,Tel:0538-8249338;E-mail: chanyetixi@163.com
  • 基金资助:
    国家自然科学基金重点项目(31730080);山东省泰山学者攀登计划(tspd20161005)

Understanding and Thinking About Some Problems of Fruit Tree Germplasm Resources and Genetic Breeding

CHEN XueSen(),WANG Nan,ZHANG ZongYing,MAO ZhiQuan,YIN ChengMiao   

  1. College of Horticulture Science and Engineering, Shandong Agricultural University/State Key Laboratory of Crop Biology/ National Apple Engineering and Technique Research Center/Key Laboratory of Horticultural Crop Biology and Germplasm Creation in Huanghuaihai Region, Ministry of Agriculture and Rural Affairs, Tai’an 271018, Shandong
  • Received:2021-11-30 Accepted:2022-02-21 Online:2022-09-01 Published:2022-09-07

摘要:

综述了果树种质资源与遗传育种研究进展及若干问题的理解与思考,主要结果如下:1.中国虽然是柑橘、苹果、梨、桃、龙眼、枇杷、香蕉、猕猴桃、李、杏、枣和柿等多种果树的起源演化中心(之一),是世界上最大的果树资源国,但野生种质和名特优地方品种的发掘、创新与利用有待进一步加强。2.按照遗传变异的来源,果树常规育种主要有杂交育种和芽变选种两个途径;果树杂种一代广泛分离,每一次育种都选择杂种优势最强的基因型,通过无性繁殖成为新的营养系品种,并在生产上长期利用,而显性、超显性和上位性3大假说是杂种优势形成的主要遗传基础;对‘富士’和‘鲁丽’苹果、‘玫瑰香’葡萄及‘山农酥’梨等新品种及其亲本主要性状分析发现,选择具有互补性状的品种作为杂交亲本,并选择遗传背景复杂的品种作为杂交母本,是果树杂种优势高效利用及其亲本选择选配的重要结论;杂交育种是根据产业的品种需求确定育种目标,进行亲本选择与选配,培育双亲性状互补、杂种优势明显的新品种,而芽变选种是利用体细胞自然突变及其表观遗传对生产上的主栽品种个别性状进行修缮和改良;因此,杂交育种和芽变选种有机结合是解决果树产业品种问题的重要技术途径。3.面对国家乡村振兴的战略需求及关于“坚持凭能力、实绩、贡献评价人才,克服唯学历、唯资历、唯论文等倾向”的人才评价机制改革,深度解读了农业科技人员必须坚持“理论与技术创新并重及良种良法配套”的科研思路及其经典案例。

关键词: 果树, 种质资源, 杂交育种, 芽变选种, 理论与技术, 良种与良法

Abstract:

This review summarized the research progress of fruit tree germplasm resources and genetic breeding as well as the understanding and thinking of several issues. The main results were as follows: 1. Although China was the world’s largest fruit tree resource country and the origin and evolution center (one of) of many fruit trees, such as citrus, apple, pear, peach, longan, loquat, banana, kiwi, plum, apricot, jujube and persimmon, the discovery, innovation and utilization of wild germplasm and famous local varieties needed to be further strengthened. 2. According to the source of genetic variation, the fruit tree breeding mainly had two approaches: hybrid breeding and bud sports selection; the first generation of fruit tree hybrids was widely separated, and the genotype with the strongest heterosis was selected for each breeding. It became a new variety through asexual reproduction, and was used for a long time in production. The three hypotheses of dominant, superdominant and epistasis were the main genetic basis of heterosis; the analysis of the main characters of the new varieties of Fuji and Luli apples, Muscat Hamburg grape, and Shannongsu pear and their parents showed that selecting varieties with complementary traits as hybrid parents and selecting varieties with complex genetic background as female parents were important guidelines for the efficient utilization of fruit tree heterosis. Hybrid breeding was to determine the breeding goals according to the variety needs of the industry, to carry out parental selection and matching, and to breed new varieties with complementary parental traits and obvious heterosis. Bud mutation selection was the use of somatic natural mutations and epigenetics to repair and improve the individual traits of the main plant varieties in production; therefore, the organic combination of hybrid breeding and bud sports selection was an important technical approach to solve the variety problem of fruit tree industry. 3. In the face of rural revitalization and the country’s reform of the talent evaluation mechanism of “Persist in evaluating talents based on ability, actual performance and contribution, and overcome the tendency of only education, qualifications, and papers”, this review explained the scientific research ideas and classic cases that agricultural scientists must adhere to “Equal emphasis on technological innovation and the combination of good varieties and methods”.

Key words: fruit tree, germplasm resource, hybrid breeding, bud sports selection, theory and technology, good varieties and good methods