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タイトル: | Hybridizations and genetic relationships among Lindernia species (Scrophulariaceae): L. procumbens and two subspecies of L. dubia |
著者: | Yoshino, Namiko Wang, Guang-Xi Uchino, Akira Tominaga, Tohru https://orcid.org/0000-0002-6231-0851 (unconfirmed) |
著者名の別形: | 汪, 光熙 |
キーワード: | Lindernia dubia ssp. major Lindernia dubia ssp. dubia Naturalized species Paddy weed Genetic diversity Lindernia procumbens Hybridization AFLP |
発行日: | May-2011 |
出版者: | Elsevier B.V. |
誌名: | Aquatic Botany |
巻: | 94 |
号: | 4 |
開始ページ: | 165 |
終了ページ: | 171 |
抄録: | Lindernia procumbens and L. dubia are common annual weeds in flooded rice fields of Japan. Two subspecies of L. dubia, subsp. major and subsp. dubia, are usually recognized in Japan but they are both regarded as synonyms of L. dubia elsewhere. In a cluster analysis based on AFLP, most L. dubia subsp. major formed a separate cluster from L. dubia subsp. dubia although 11% of haplotypes classified using AFLP were not coincident with classification using the shape of leaf bases, which is the commonly used identification trait. Artificial F1 plants between L. procumbens and L. dubia subsp. major, and between L. procumbens and L. dubia subsp. dubia did not produce seed. Forty percent of capsules produced by F1 plants from these two subspecies were slimmer and 80% pollen were sterile in slimmer capsules. However, seed number of most F1 capsules was not different from that of self-fertilized plants, suggesting that there was no complete reproductive isolation between the subspecies. Natural hybridization of these subspecies may have occurred but we are not aware of it because F1 plants are rare and F2 plants are indistinguishable from these subspecies. |
著作権等: | © 2011 Elsevier B.V. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 This is not the published version. Please cite only the published version. |
URI: | http://hdl.handle.net/2433/139590 |
DOI(出版社版): | 10.1016/j.aquabot.2011.02.002 |
出現コレクション: | 学術雑誌掲載論文等 |
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