首页|Analysis of genetic parameters of growth and wood traits provides insight into the genetic improvement of Schima superba

Analysis of genetic parameters of growth and wood traits provides insight into the genetic improvement of Schima superba

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  • NETL
  • NSTL
  • Springer Nature
Schima superba (Theaceae) is widely distributed in subtropical China, and is the main timber and ecological afforestationtree species. This study aimed to provide a practical basis for the genetic improvement of wood traits of Schima superba.Herein, 10-year-old, half-sib families S. superba trees were used to reveal the genetic variation and control of growth traitsand wood traits, as well as the correlation between them. The results revealed significant differences in tree height, DBH, andwood basic density among families. Furthermore, the differences in wood anatomical traits between families increased withage. The order of phenotype and genetic variation among families from large to small was DBH, tree height, vessel, fiber,and wood basic density. The phenotype variation and genetic variation of wood anatomical traits also increased with age.Heritability estimates revealed that wood basic density, DBH, and tree height were under stronger genetic control; fiber andvessel were under moderate genetic control. The correlation results showed that tree height, DBH, and wood basic densitycould be selected independently. Wood basic density and wood anatomical traits together could be improved. Moreover, basedon the selection traits of DBH and WBD, families with excellent growth and wood traits were selected using breeding values.

Genetic variation · Genetic control · Growth trait · Wood anatomy · Schima superba

Yunpeng Wang、Guoliang Wu、Shaohua Huang、Lizhen Ma、Huihua Fan、Rui Zhang、Zhichun Zhou

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Chinese Academy of Forestry, Zhejiang ProvincialKey Laboratory of Tree Breeding, Research Instituteof Subtropical Forestry, Hangzhou 311400, China||Jiangxi Academy of Sciences, Institute of BiologicalResources, Nanchang 330096, China

Longquan Forestry Academy of Zhejiang Province,Longquan 323700, China

Forestry Technology Popularization Center of Jian’ou Fujian,Jian’ou 353100, China

Fujian Academy of Forestry Sciences, Fuzhou 350012, China

Chinese Academy of Forestry, Zhejiang ProvincialKey Laboratory of Tree Breeding, Research Instituteof Subtropical Forestry, Hangzhou 311400, China

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2024

10.1007/s11295-024-01641-1

Tree Genetics & Genomes

Tree Genetics & Genomes

SCI
ISSN：1614-2942
年,卷(期)：2024.20(2)
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