Features in Stem Blight Resistance Confirmed in Interspecific Hybrids of <i>Asparagus officinalis</i> L. and <i>Asparagus kiusianus</i> Makino

Yoko Takeuchi, Emika Kakizoe, Ryosuke Yoritomi, Miyuki Iwato, Akira Kanno, Takao Ikeuchi, Mitsutaka Mori, Kyoko Murakami, Atsuko Uragami, Masaru Matsumoto, Junichiro Masuda, Kaori Sakai, Yukio Ozaki

Research output: Contribution to journalArticle

Abstract

<p>We investigated the resistance to stem blight disease (<i>Phomopsis asparagi</i> (Sacc.)) in the progeny of two combinations of interspecific crosses between <i>Asparagus officinalis</i> (sensitive) and <i>Asparagus A. kiusianus</i> (resistant) in an effort to produce resistant cultivars. The progeny showed different degrees of disease severity, depending on the combination of crosses. Most of the hybrids derived from AO0060 (<i>A. officinalis</i>) × AK0501 (<i>A. kiusianus</i>) showed high disease resistance comparable to that of <i>A. kiusianus</i>. The results indicate that disease resistance could be introduced from <i>A. kiusianus</i> into <i>A. officinalis</i>, and that the selection of an appropriate cross combination is important for the production of disease-resistant cultivars. We analyzed the parents and hybrids of reciprocal crosses between <i>A. officinalis</i> and <i>A. kiusianus</i> using derived cleaved amplified polymorphic sequence markers to investigate the inheritance of the chloroplast genome, whose inheritance and genetic characteristics are not yet known. The chloroplast DNAs were inherited from the maternal parent, indicating that no major genes related to stem blight resistance were found in the chloroplast DNA.</p>
Original languageEnglish
JournalHorticulture Journal
DOIs
Publication statusPublished - 2018

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    Takeuchi, Y., Kakizoe, E., Yoritomi, R., Iwato, M., Kanno, A., Ikeuchi, T., Mori, M., Murakami, K., Uragami, A., Matsumoto, M., Masuda, J., Sakai, K., & Ozaki, Y. (2018). Features in Stem Blight Resistance Confirmed in Interspecific Hybrids of <i>Asparagus officinalis</i> L. and <i>Asparagus kiusianus</i> Makino. Horticulture Journal. https://doi.org/10.2503/hortj.OKD-104