NDLI: Karyotypes of some species of Castanopsis, Lithocarpus and Quercus (Fagaceae) from Khun Mae Kuang Forest in Chiang Mai province, northern Thailand

Content Provider	Semantic Scholar
Author	Chokchaichamnankit, Ploenpit Chulalaksananukul, Warawut Phengklai, Chamlong Anamthawat-Jónsson, Kesara
Copyright Year	2007
Abstract	Karyotypes of 18 species belonging to three genera, Castanopsis (9), Lithocarpus (5) and Quercus (4) of Fagaceae from northern Thailand were constructed. All species showed diploid (2n = 2x = 24) chromosome numbers, with the basic number being 12. Meiosis from anthers of two Castanopsis species confirmed the diploid status. Metaphase chromosomes are relatively small, about 2–5 im in size, and all are metacentric and submetacentric chromosomes. The arm-ratio measurement revealed karyotypic variation among the species investigated – the chromosome complement consists of 8–12 pairs of metacentric and 0–4 pairs of submetacentric chromosomes. This is the first report of karyotypes of Castanopsis and Lithocarpus from Thailand. The karyotypic description of the Quercus species examined here is substantially different from that of European species.
Starting Page	38
Ending Page	44
Page Count	7
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://www.tci-thaijo.org/index.php/ThaiForestBulletin/article/download/24199/20578
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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