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New insight into inheritance pattern of seed coat colour in adzuki bean

Published online by Cambridge University Press:  05 October 2023

Kaili Wang
Affiliation:
Beijing Key Laboratory of New Technology in Agricultural Application, College of Plant Science and Technology, Beijing University of Agriculture, Beijing, 102206, China
Liwei Chu
Affiliation:
Beijing Key Laboratory of New Technology in Agricultural Application, College of Plant Science and Technology, Beijing University of Agriculture, Beijing, 102206, China Schools of Life and Health, Dalian University, No. 10 Xuefu Street, Dalian, 116622, Liaoning, China
Pu Zhao
Affiliation:
Beijing Key Laboratory of New Technology in Agricultural Application, College of Plant Science and Technology, Beijing University of Agriculture, Beijing, 102206, China Institute of Crop Research, Chinese Academy of Agricultural Sciences, Beijing, 102206, China
Bo Zhao
Affiliation:
Beijing Key Laboratory of New Technology in Agricultural Application, College of Plant Science and Technology, Beijing University of Agriculture, Beijing, 102206, China
Yisong Li
Affiliation:
Beijing Key Laboratory of New Technology in Agricultural Application, College of Plant Science and Technology, Beijing University of Agriculture, Beijing, 102206, China
Yang Kai*
Affiliation:
Beijing Key Laboratory of New Technology in Agricultural Application, College of Plant Science and Technology, Beijing University of Agriculture, Beijing, 102206, China
Ping Wan*
Affiliation:
Beijing Key Laboratory of New Technology in Agricultural Application, College of Plant Science and Technology, Beijing University of Agriculture, Beijing, 102206, China
*
Corresponding author: Yang Kai; Email: yangkai8978@126.com; Ping Wan; Email: pingwan3@163.com
Corresponding author: Yang Kai; Email: yangkai8978@126.com; Ping Wan; Email: pingwan3@163.com

Abstract

Seed coat colour in adzuki bean is an important quality trait and closely associated with anthocyanin metabolism pathways. To further understand the inheritance of seed coat colour pattern, the inheritance between multiple seed coat colours and ivory seed were analysed using F1:2, F2:3 and F3:4 populations derived from five bi-parental crosses. The differences between ivory and red mottle on ivory are controlled by a single recessive R locus and RI locus, respectively. Green, light brown and golden are all dominant to red and governed by two loci. The B (brown) locus shows dominant epistasis over T locus. The R (red) locus was recessive epistasis to B (black), T (light brown), G (golden), GR (green) and RI (red mottle on ivory) loci. The new insight into the strong recessive epistasis of the R locus will be important for gene mapping and cloning, candidate gene functional validation and quality improvement in adzuki bean.

Type
Research Article
Copyright
Copyright © The Author(s), 2023. Published by Cambridge University Press on behalf of National Institute of Agricultural Botany

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Footnotes

*

These authors contributed equally to this work.

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