The key and core technologies for accelerating the tree breeding process

doi:10.12302/j.issn.1000-2006.202206020

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2022, Vol. 46 ›› Issue (6): 1-9.doi: 10.12302/j.issn.1000-2006.202206020

The key and core technologies for accelerating the tree breeding process

CHEN Yingnan¹(), WEI Suyun¹, QU Guanzheng², HU Jianju³, WANG Junhui³, YIN Tongming¹, PAN Huixin¹, LU Mengzhu⁴, KANG Xiangyang⁵, LI Laigeng⁶, HUANG Minren¹, WANG Mingxiu¹^,^*()

1. Key Laboratory of Tree Genetics and Biotechnology of Department of Education, College of Forestry, Nanjing Forestry University, Nanjing 210037, China
2. State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin 150006, China
3. Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China
4. State Key Laboratory of Subtropical Silviculture, College of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou 311300, China
5. College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
6. State Key Laboratory of Plant Molecular Genetics, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China

Received:2022-06-14 Revised:2022-07-02 Online:2022-11-30 Published:2022-11-24
Contact: WANG Mingxiu E-mail:chenyingnan@njfu.edu.cn;wangmx@njfu.edu.cn

Abstract

Abstract:

Elite cultivars provide important foundations for enhancing carbon sink capacity and increasing the productivity of forest plantations. Forestry germplasm resources breeding and quality improvement has been one of the national key research and development programs during the 14th Five-Year Plan period in China. For ensuring timber safety and achieving dual-carbon goals, it is strategically important to break through the bottleneck that restricts the increase in breeding efficiency and the genetic gain of forest trees. Due to the long period, low efficiency, and low phenotypic selection accuracy of traditional breeding approaches, modern breeding technologies represented by molecular breeding have become a critical path towards high-efficient genetic improvement of forest trees. This is because it can considerably shorten breeding cycles and improve target traits with precision. This paper analyzed the main problems limiting the genetic improvement of forest trees, reviewed the key and core technologies for accelerating the tree breeding process, such as genomic selection breeding, and further discussed some future perspectives for this area. This review will provide useful information for accelerating the revolution and innovation of genetic improvement in forest trees.

Key words: tree breeding, genomic selection breeding, doubled haploid(DH) breeding, polyploid breeding, multi-gene pyramid breeding, gene editing breeding

CLC Number:

S722

CHEN Yingnan, WEI Suyun, QU Guanzheng, HU Jianju, WANG Junhui, YIN Tongming, PAN Huixin, LU Mengzhu, KANG Xiangyang, LI Laigeng, HUANG Minren, WANG Mingxiu. The key and core technologies for accelerating the tree breeding process[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2022, 46(6): 1-9.

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The key and core technologies for accelerating the tree breeding process

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