Interspecific Crossing between <i>Lilium hansonii</i> Leichtlin and <i>L. brownii</i> var. <i>colchesteri</i> for the Breeding of New Lily Cultivars

This study aimed to generate interspecific hybrids between two remote lily species, <i>L. hansonii</i> Leichtlin and <i>L. brownii</i> var. <i>colchesteri</i>. Reciprocal crosses were performed by conventional and cut-style pollination methods, but viable seeds we...

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Main Authors: Ji-Young Kim, Ye-Su Song, Jong-Kuk Na, Jong-Hwa Kim
Format: Article
Language:English
Published: MDPI AG 2022-03-01
Series:Agronomy
Subjects:
Online Access:https://www.mdpi.com/2073-4395/12/3/621
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author Ji-Young Kim
Ye-Su Song
Jong-Kuk Na
Jong-Hwa Kim
author_facet Ji-Young Kim
Ye-Su Song
Jong-Kuk Na
Jong-Hwa Kim
author_sort Ji-Young Kim
collection DOAJ
description This study aimed to generate interspecific hybrids between two remote lily species, <i>L. hansonii</i> Leichtlin and <i>L. brownii</i> var. <i>colchesteri</i>. Reciprocal crosses were performed by conventional and cut-style pollination methods, but viable seeds were only obtained when <i>L. hansonii</i> was used as the female parent, indicating that unilateral incompatibility exists between the two species. In the case of immature seeds, embryos with 2~3 mm were carefully removed from testa for further in vitro culture, and they grew as normal plants. A total of 343 progenies was obtained from the crosses, and hybridity of the progenies were examined using the L9 marker, simple sequence repeat (SSR) marker, at the seedling stage and 92 were confirmed as F<sub>1</sub> hybrids. Ploidy level of 76 F<sub>1</sub> hybrid was examined and confirmed as diploid. F<sub>1</sub> hybrids exhibited intermediate morphologies of the parent in outer tepal and leaf length, but flower shape and color were similar to those of <i>L. hansonii</i>. On the other hand, F<sub>1</sub> hybrid plants showed increased flower spots, flower size, and bud numbers, which could be important signatures of the F<sub>1</sub> hybrid. This study reports the first attempt to generate an interspecific hybrid between the two species, and therefore, our results from this study would be very informative for future lily breeding.
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spelling doaj.art-dd0f520cfdea4293959afe369bfa15802023-11-30T20:44:08ZengMDPI AGAgronomy2073-43952022-03-0112362110.3390/agronomy12030621Interspecific Crossing between <i>Lilium hansonii</i> Leichtlin and <i>L. brownii</i> var. <i>colchesteri</i> for the Breeding of New Lily CultivarsJi-Young Kim0Ye-Su Song1Jong-Kuk Na2Jong-Hwa Kim3Department of Horticulture, Kangwon National University, Chuncheon 24341, KoreaDepartment of Horticulture, Kangwon National University, Chuncheon 24341, KoreaDepartment of Controlled Agriculture, Kangwon National University, Chuncheon 24341, KoreaDepartment of Horticulture, Kangwon National University, Chuncheon 24341, KoreaThis study aimed to generate interspecific hybrids between two remote lily species, <i>L. hansonii</i> Leichtlin and <i>L. brownii</i> var. <i>colchesteri</i>. Reciprocal crosses were performed by conventional and cut-style pollination methods, but viable seeds were only obtained when <i>L. hansonii</i> was used as the female parent, indicating that unilateral incompatibility exists between the two species. In the case of immature seeds, embryos with 2~3 mm were carefully removed from testa for further in vitro culture, and they grew as normal plants. A total of 343 progenies was obtained from the crosses, and hybridity of the progenies were examined using the L9 marker, simple sequence repeat (SSR) marker, at the seedling stage and 92 were confirmed as F<sub>1</sub> hybrids. Ploidy level of 76 F<sub>1</sub> hybrid was examined and confirmed as diploid. F<sub>1</sub> hybrids exhibited intermediate morphologies of the parent in outer tepal and leaf length, but flower shape and color were similar to those of <i>L. hansonii</i>. On the other hand, F<sub>1</sub> hybrid plants showed increased flower spots, flower size, and bud numbers, which could be important signatures of the F<sub>1</sub> hybrid. This study reports the first attempt to generate an interspecific hybrid between the two species, and therefore, our results from this study would be very informative for future lily breeding.https://www.mdpi.com/2073-4395/12/3/621immature embryo cultureinterspecific hybridsSSR markermarker-assisted selectioncut-style pollination
spellingShingle Ji-Young Kim
Ye-Su Song
Jong-Kuk Na
Jong-Hwa Kim
Interspecific Crossing between <i>Lilium hansonii</i> Leichtlin and <i>L. brownii</i> var. <i>colchesteri</i> for the Breeding of New Lily Cultivars
Agronomy
immature embryo culture
interspecific hybrids
SSR marker
marker-assisted selection
cut-style pollination
title Interspecific Crossing between <i>Lilium hansonii</i> Leichtlin and <i>L. brownii</i> var. <i>colchesteri</i> for the Breeding of New Lily Cultivars
title_full Interspecific Crossing between <i>Lilium hansonii</i> Leichtlin and <i>L. brownii</i> var. <i>colchesteri</i> for the Breeding of New Lily Cultivars
title_fullStr Interspecific Crossing between <i>Lilium hansonii</i> Leichtlin and <i>L. brownii</i> var. <i>colchesteri</i> for the Breeding of New Lily Cultivars
title_full_unstemmed Interspecific Crossing between <i>Lilium hansonii</i> Leichtlin and <i>L. brownii</i> var. <i>colchesteri</i> for the Breeding of New Lily Cultivars
title_short Interspecific Crossing between <i>Lilium hansonii</i> Leichtlin and <i>L. brownii</i> var. <i>colchesteri</i> for the Breeding of New Lily Cultivars
title_sort interspecific crossing between i lilium hansonii i leichtlin and i l brownii i var i colchesteri i for the breeding of new lily cultivars
topic immature embryo culture
interspecific hybrids
SSR marker
marker-assisted selection
cut-style pollination
url https://www.mdpi.com/2073-4395/12/3/621
work_keys_str_mv AT jiyoungkim interspecificcrossingbetweenililiumhansoniiileichtlinandilbrowniiivaricolchesteriiforthebreedingofnewlilycultivars
AT yesusong interspecificcrossingbetweenililiumhansoniiileichtlinandilbrowniiivaricolchesteriiforthebreedingofnewlilycultivars
AT jongkukna interspecificcrossingbetweenililiumhansoniiileichtlinandilbrowniiivaricolchesteriiforthebreedingofnewlilycultivars
AT jonghwakim interspecificcrossingbetweenililiumhansoniiileichtlinandilbrowniiivaricolchesteriiforthebreedingofnewlilycultivars