Details

Autor(en) / Beteiligte

• Kakui, Hiroyuki
• Ujino-Ihara, Tokuko
• Hasegawa, Yoichi
• Tsurisaki, Eriko
• Futamura, Norihiro
• Iwai, Junji
• Higuchi, Yuumi
• Fujino, Takeshi
• Suzuki, Yutaka
• Kasahara, Masahiro
• Yamaguchi, Katsushi
• Shigenobu, Shuji
• Otani, Masahiro
• Nakano, Masaru
• Nameta, Masaaki
• Shibata, Shinsuke
• Ueno, Saneyoshi
• Moriguchi, Yoshinari
• Brenner, David

Titel

A single-nucleotide substitution of CjTKPR1 determines pollen production in the gymnosperm plant Cryptomeria japonica

Ist Teil von

• PNAS nexus, 2023-08, Vol.2 (8), p.pgad236-pgad236

Ort / Verlag

England: Oxford University Press

Erscheinungsjahr

2023

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• Pollinosis, also known as pollen allergy or hay fever, is a global problem caused by pollen produced by various plant species. The wind-pollinated Japanese cedar ( ) is the largest contributor to severe pollinosis in Japan, where increasing proportions of people have been affected in recent decades. The ( ) locus of Japanese cedar controls pollen production, and its homozygous mutants ( ) show abnormal pollen development after the tetrad stage and produce no mature pollen. In this study, we narrowed down the locus by fine mapping in Japanese cedar and found ( ) gene in this region. Transformation experiments using showed that single-nucleotide substitution ("T" to "C" at 244-nt position) of determines pollen production. Broad conservation of TKPR1 beyond plant division could lead to the creation of pollen-free plants not only for Japanese cedar but also for broader plant species.