Inheritance of Non-pungency in ‘No.3341’ (<i>Capsicum chinense</i>)

• Koeda Sota

  Experimental Farm, Graduate School of Agriculture, Kyoto University

• Sato Kosuke

  Experimental Farm, Graduate School of Agriculture, Kyoto University

• Takisawa Rihito

  Experimental Farm, Graduate School of Agriculture, Kyoto University

• Kitajima Akira

  Experimental Farm, Graduate School of Agriculture, Kyoto University

Bibliographic Information

Other Title

• ‘No.3341’ (<i>Capsicum chinense</i>) が持つ非辛味性の遺伝様式
• Inheritance of Non-pungency in 'No.3341' (Capsicum chinense)

Abstract

An understanding of the genetic mechanism underlying capsaicinoid biosynthesis is important for breeding both pungent and non-pungent peppers. Although Capsicum is one of the earliest domesticated plant genera, only mutations in acyltransferase (Pun1) and putative aminotransferase (p-AMT) have been reported as genetic causes of loss of pungency. ‘No.3341’ (C. chinense) from Bolivia is a non-pungent cultivar. To determine the reasons underlying the non-pungency of ‘No.3341’, its expression levels and deduced amino acid sequences of Pun1 and p-AMT were analyzed. In ‘No.3341’, the expression levels and deduced amino acid sequences of both genes were normal compared with those of the pungent cultivar ‘Habanero’. Inheritance of the non-pungency was analyzed in F₁ and F₂ populations obtained by crossing ‘No.3341’ with ‘Habanero’. The segregation ratio indicated that the non-pungency of ‘No.3341’ is controlled by a single recessive gene. Moreover, since F₁ populations obtained by crossing ‘No.3341’ with a non-pungent pepper, ‘NMCA30036’ harboring a mutation in Pun1, or with ‘No.2’ and ‘No.80’ harboring mutations in p-AMT, were all pungent, Pun1 and p-AMT could not account for the non-pungency of ‘No.3341’. It appears that a novel genetic mechanism is responsible for the loss of pungency in ‘No.3341’.

Journal

• The Horticulture Journal

  The Horticulture Journal 84 (4), 323-326, 2015

  The Japanese Society for Horticultural Science

Keywords

• <i>acyltransferase</i> (<i>Pun1</i>)
• peppers
• <i>putative aminotransferase</i> (<i>p-AMT</i>)

Details

• CRID: 1390282680736166656
• NII Article ID: 130005105352
• NII Book ID: AA12708073
• DOI: 10.2503/hortj.mi-049
• ISSN: 21890110
• ISSN: 21890102
• NDL BIB ID: 026813072
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I026813072
• Web Site: https://www.jstage.jst.go.jp/article/hortj/84/4/84_MI-049/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed