The production and characterization of a BoFLC2 introgressed Brassica rapa by repeated backcrossing to an F1

Daniel J. Shea; Yuki Tomaru; Etsuko Itabashi; Yuri Nakamura; Toshio Miyazaki; Tomohiro Kakizaki; Tonu Nazmoon Naher; Motoki Shimizu; Ryo Fujimoto; Eigo Fukai; Keiichi Okazaki

doi:10.1270/jsbbs.17115

This article has now been updated. Please use the final version.

The production and characterization of a BoFLC2 introgressed Brassica rapa by repeated backcrossing to an F₁

Daniel J. Shea, Yuki Tomaru, Etsuko Itabashi, Yuri Nakamura, Toshio Miyazaki, Tomohiro Kakizaki, Tonu Nazmoon Naher, Motoki Shimizu, Ryo Fujimoto, Eigo Fukai, Keiichi Okazaki

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Keywords: Brassica oleracea, Brassica rapa, flowering time, introgression, vernalization, chromosome segment substitution line

JOURNAL FREE ACCESS Advance online publication
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Article ID: 17115

DOI https://doi.org/10.1270/jsbbs.17115

The final version of this article is now available: Vol. 68 (2018), No. 3

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Abstract

Flowering time is an important agronomic trait for Brassica rapa crops, and previous breeding work in Brassica has successfully transmitted other important agronomic traits from donor species. However, there has been no previous attempts to produce hybrids replacing the original Brassica FLC alleles with alien FLC alleles. In this paper, we introduce the creation of a chromosome substitution line (CSSL) containing a homozygous introgression of Flowering Locus C from Brassica oleracea (BoFLC2) into a B. rapa genomic background, and characterize the CSSL line with respect to the parental cultivars. The preferential transmission of alien chromosome inheritance and the pattern of transmission observed during the production of the CSSLs are also discussed.

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