Scientia Agricultura Sinica ›› 2022, Vol. 55 ›› Issue (4): 755-768.doi: 10.3864/j.issn.0578-1752.2022.04.011

• HORTICULTURE • Previous Articles     Next Articles

Interpretation of the Case of Bud Sports Selection to Promote the High-Quality and Efficient Development of the World’s Apple and Citrus Industry

CHEN XueSen1(),YIN HuaLin2,WANG Nan1,ZHANG Min3,JIANG ShengHui4,XU Juan2,MAO ZhiQuan1,ZHANG ZongYing1,WANG ZhiGang5,JIANG ZhaoTao6,XU YueHua7,LI JianMing8   

  1. 1College of Horticulture Science and Engineering, Shandong Agricultural University/State Key Laboratory of Crop Biology/Key Laboratory of Horticultural Crop Biology and Germplasm Creation in Huanghuaihai Region, Ministry of Agriculture and Rural Affairs, Tai’an 271018
    2Key Laboratory of the Ministry of Horticultural Plant Biology, Huazhong Agricultural University/Key Laboratory of Horticultural Crop Biology and Germplasm Creation in Central China, Ministry of Agriculture/Citrus Research Institute,Wuhan 430070
    3College of Forestry and Biotechnology, Zhejiang A & F University/State Key Laboratory of Subtropical Silviculture, Hangzhou 311300
    4College of Horticulture, Qingdao Agricultural University /Qingdao Key Laboratory of Horticultural Plant Genetic Improvement and Breeding, Qingdao 266109, Shandong
    5Shandong Fruit-Tea Technology Promotion Station, Jinan 250013
    6Yantai Fruit-Tea Technology Promotion Station, Yantai 264001, Shandong
    7Fruit Tree Work Station of Penglai, Penglai 265600, Shandong
    8Fruit Tree Research Institute of Jingning, Gansu, Jingning 743400, Gansu
  • Received:2021-05-06 Accepted:2021-08-27 Online:2022-02-16 Published:2022-02-23
  • Contact: XueSen CHEN E-mail:chanyetixi@163.com

Abstract:

This review summarized the research progress of plant epigenetics and fruit tree bud sports selection, and analyzed the classic cases of bud sports selection promoting the high-quality and efficient development of the word’s apple and citrus industries. The main results were summarized as follows: (1) Epigenetics caused by DNA methylation and histone modification, etc., was widely involved in various plant growth and development processes and adversity stress responses; (2) The selection of fruit tree bud sports was the best among the best. It had six characteristics, such as high efficiency, reproducibility, stability, diversity and pleiotropy, epigenetic characteristics, and practical effects. At present, more than 600 varieties of fruit tree bud sports have been selected, such as apples and citrus; (3) In response to the problems of the four varieties of Fuji, Delicious, Navel Oranges and Satsuma Mandarin, a series of new varieties have been bred using continuous multi-generation bud sports selection technology, forming a huge variety group and promoting the high-quality and efficient development of the industry. Therefore, two aspects should be further studied in the future: one is to further strengthen the mechanism of fruit tree bud sports and to promote the innovation of breeding technology; The second is to further enhance the awareness of the innovation of fruit tree bud sports selection and to further strengthen the understanding of the importance of the fruit tree industry, and the technical route of combining Mendelian inheritance and epigenetic inheritance should be adopt, combining conventional and molecular technology as well as hybrid breeding and bud sports selection, so as to increase the research efforts of fruit tree bud sports selection and new varieties breeding, and provide varieties support for the high-quality development of the fruit tree industry.

Key words: Mendelian inheritance, epigenetics, selection of fruit tree buds, Fuji and Delicious apples, navel orange and Satsuma mandarin

Table 1

The diversity of fruit buds change and the varieties of buds bred by bud change selection"

类型
Type
变异性状
Variant trait
果树种类
Fruit tree species
芽变品种数量
Number of sports varieties
芽变机理
Mechanism of sports
果实成熟期
Fruit maturity
早熟
Early ripening
苹果[55]、柑橘[22]、梨[56,57]、葡萄[58]、桃[59]
Apple[55], citrus[22], pear[56,57], grape[58], peach[59]
18+11+15+1+3=48 不详
Unknown
晚熟
Late ripening
苹果[55]、柑橘[1,22]、梨[56,57]
Apple[55], citrus[1,22], pear[56,57]
64+9+20=93 不详
Unknown
果实形状
Fruit shape
多倍体变异
Polyploid variation
葡萄[28]、梨[29,30]
Grape[28], pear[29,30]
1+2=3 染色体加倍
Chromosome doubling
大果型
Large fruit
苹果[60]、柑橘[1,14]、梨[56,57]
Apple[60], citrus[1,14], pear[56,57]
88+1+5=94 不详
Unknown
高桩型
High pile
苹果[55,60,61]
Apple[55,60,61]
60 不详
Unknown
果皮颜色
Peel color
红色
Red
苹果[55,60,61]、梨[37-38,56]
Apple[55,60,61], pear[37-38,56]
122+64=186 DNA甲基化
DNA methylation
白色
White
葡萄[58]
Grape[58]
1 反转录转座子的插入
Retrotransposon insertion
褐色
Brown
[62]
Pear[62]
1 不详
Unknown
果肉颜色
Flesh color
红色
Red
柑橘[1,24]、猕猴桃[63]
Citrus[1,24], kiwifruit[63]
11+5=16 基因结构的突变
Gene structure mutations
黄色
Yellow
[64]
Peach[64]
1 不详
Unknown
果肉质地
Fruit texture
脆肉
Crispy
苹果[65]
Apple[65]
1 不详
Unknown
果肉风味
Fruit flavor
高糖
High sugar
[57]、龙眼[66]
Pear[57], longan[66]
1+2=3 不详
Unknown
香味浓
Strong flavor
柑橘[14]
Citrus[14]
2 不详
Unknown
树型
Tree type
短枝型
Short branch
苹果[2,55,61]
Apple[2,55,61]
87 表观遗传
Epigenetic
柱型
Cylindricality
威赛克苹果[54]
Wijcik[54]
1 反转录转座子的插入
Retrotransposon insertion
抗性
Resistance
抗寒
Cold resistance
苹果[55]、梨[57]、葡萄[58]
Apple[55], pear[57], grape[58]
20+15+2=37 不详
Unknown
抗病
Disease resistance
柑橘[1,14]、梨[57]、香蕉[67]
Citrus[1,14], pear[57], banana[67]
1+36+1=38 不详
Unknown

Fig. 1

The continues multi-generational bud selection of U.S. Delicious apple variety and Delicious system variety group"

Table 2

Survey of the cultivation area and proportion of apple varieties in Shandong Province in 1984, 1987 and 1990"

品种名称
Variety name
1984 1987 1990
面积(万公顷)
Area (Ten thousand hm2)
占比
Proportion
(%)
面积(万公顷)
Area (Ten thousand hm2)
占比
Proportion
(%)
面积(万公顷)
Area (Ten thousand hm2)
占比
Proportion
(%)
国光Ralls 6.7 34.4 11.8 25.9 8.8 18.1
金帅Golden Delicious 4.2 21.5 8.2 18.1 7.1 14.6
元帅系Delicious 3.2 16.4 11.2 24.7 14.5 29.8
红富士Red Fuji 0.0 0.0 7.8 17.1 10.8 22.2
青香蕉White Winter Pearmain 1.9 9.9 1.9 4.2 2.6 5.4
秋花皮BenDavis 1.2 6.1 0.8 1.7 0.0 0.0
红玉Jonathan 0.8 4.0 0.5 1.2 0.7 1.5
祝光American Summer pearmain 0.5 2.7 0.0 0.0 0.0 0.0
白粉皮Baifenpi 0.2 1.0 0.0 0.0 0.0 0.0
伏花皮Fuhuapi 0.2 0.9 0.0 0.0 0.0 0.0
印度Indian Green 0.1 0.7 0.2 0.5 0.7 1.4
乔纳金Jonagold 0.0 0.0 0.1 0.2 0.2 0.5
北斗Hokuto 0.0 0.0 0.0 0.0 0.4 0.9
其他Others 0.5 2.4 2.9 6.4 2.7 5.6
合计Total 19.5 100 45.4 100 48.7 100

Fig. 2

Continuous multi-generational bud selection of Nagafu 2 apple and “Fuji” variety group in China[4]"

Fig. 3

The pictures of Nagafu 2 (2nd generation) and Yanfu 3 (3rd generation) and their new red bud varieties Longfu (5th generation) and Yuanfuhong (4th generation) apples"

Fig. 4

The continuous multi-generation bud variation selection of Satsuma mandarin in the world and the variety group of Satsuma mandarin"

Table 3

Comparison of Chinese “Fuji” and U.S. “Delicious” apple and world Navel orange and Satsuma mandarin bud variants"

国家
Country
果树种类
Fruit tree species
果实类型
Types of fruit
芽变主要性状
Main trait of sports varieties
不变性状
Invariable
周年供应的技术途径
Technical channels of annual supply
美国
US
‘元帅’苹果
Delicious
呼吸跃变型
Respiratory Climacteric
红色、短枝型
Red, short branch type
中熟、不耐贮
Medium ripening, poor storage tolerance
以优质、不耐贮、中熟“元帅系”品种群为主的品种结构+发达的冷链贮藏保鲜技术与设备
Variety structure dominated by high-quality, non storable and medium ripening “Delicious” variety groupd + eveloped cold chain storage and preservation technology and equipment
中国
China
‘长富2号’苹果
Changfu 2
呼吸跃变型
Respiratory Climacteric
红色、短枝型
Red, short branch type
晚熟、耐贮
Late ripening, good storage tolerance
以优质、耐贮、晚熟“富士系”品种群为主的品种结构+适当的贮藏保鲜技术与设备
Variety structure dominated by high-quality, storable and late ripening “Fuji” + appropriate storage and preservation technology and equipment
日本、美国、澳
大利亚和中国等
Japan, US, Australia and China
脐橙和温州蜜柑
Navel orange and Satsuma mandarin
非呼吸跃变型
Non- Respiratory Climacteric
早熟、晚熟
Early ripening, late ripening
鲜食品质
Fresh eating quality
熟期配套品种+生态布局+留树保鲜等栽培措施
Supporting varieties at maturity + ecological layout + tree preservation and other cultivation measures
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