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Treatment of the allenylazetidine–alkynes with a catalytic amount of [RhCl(CO)dppp]2 (dppp: 1,3-bis(diphenylphosphino)propane) effected the intramolecular hetero-[6+2]-type ring-closing reaction via the C–C bond cleavage of the azetidine ring to produce azabicyclo[6.4.0]dodecatriene derivatives in good to excellent yields. The formation of the oxa analogue could also be achieved.

2017-03-01 13:53:15
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1 0 0 0 OA 本州にて獲られたるクビワガラスCorvus torquatus Lessonに就て

著者: 葛精一
出版者: The Ornithological Society of Japan
雑誌: 鳥 (ISSN:00409480)
巻号頁・発行日: vol.8, no.39, pp.344-346, 1934-11-30 (Released:2008-12-24)

2017-03-01 13:13:50
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1 0 0 0 OA Existence of Genetic Differences in Pellicle Peelability in Japanese Chestnut (Castanea crenata Sieb. et Zucc.) Cultivars and Selections with Difficult-peeling Pellicles

著者: Norio Takada Masahiko Yamada Sogo Nishio Yutaka Sawamura Akihiko Sato Noriyuki Onoue Toshihiro Saito
出版者: 一般社団法人園芸学会
雑誌: The Horticulture Journal (ISSN:21890102)
巻号頁・発行日: pp.OKD-030, (Released:2017-02-28)
被引用文献数: 3

The pellicle of the Japanese chestnut (Castanea crenata Sieb. et Zucc.) is difficult to peel, with the exception of the recently developed ‘Porotan’, whose pellicle peelability (PP) is high and controlled by a single major gene. The objective of the present study was to identify any genetic differences in PP in Japanese chestnuts with difficult-peeling pellicles. We detected a significant genetic difference in PP (evaluated as the nut surface area that peeled away without scraping with a hand knife after deep frying in cooking oil) among five Japanese chestnut cultivars grown in Tsukuba, Japan, using two trees in 2 years, and among three cultivars grown in five locations using a single tree in 1 year. We evaluated the PP of 32 Japanese chestnut cultivars/selections and one wild clone (Shibaguri-37) using a single tree in 3 years to quantify the variation. The broad-sense heritability of mean values over the 3 years was estimated as 0.67. Shibaguri-37 had the highest PP. The suggested new genes controlling the variation in PP have high potential in terms of breeding strategy for easy-peeling pellicles as an alternative to the major gene of ‘Porotan’, the use of which is likely to result in inbreeding.

2017-03-01 11:15:02
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1 0 0 0 OA LhMYB12, Regulating Tepal Anthocyanin Pigmentation in Asiatic Hybrid Lilies, is Derived from Lilium dauricum and L. bulbiferum

著者: Masumi Yamagishi Takashi Nakatsuka
出版者: 一般社団法人園芸学会
雑誌: The Horticulture Journal (ISSN:21890102)
巻号頁・発行日: pp.OKD-057, (Released:2017-02-28)
被引用文献数: 14

Genes encoding a MYB12 transcription factor, which regulates anthocyanin biosynthesis, are the key genes causing variations in the anthocyanin colors in lily flowers. However, the origin of the MYB12 in Asiatic hybrid lilies (Lilium spp.) is not completely known. In this study, we analyzed anthocyanin pigments in tepals of L. maculatum, L. lancifolium, L. callosum, L. leichtlinii, L. davidii, L. bulbiferum, and L. dauricum, and clarified that L. dauricum and L. bulbiferum accumulated a single anthocyanin, cyanidin 3-O-rutinoside, in entire tepals, although these wild species had orange-colored tepals. The sequencing of MYB12 genes revealed seven allelic sequences among ten L. dauricum plants and two allelic sequences in one L. bulbiferum plant. These MYB12 sequences were the same as or similar to the sequences isolated from pink Asiatic hybrid lily cultivars, indicating that L. dauricum and L. bulbiferum have contributed to the anthocyanin coloration of these cultivars.