English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

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’.

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