Meiotic observations on the pollen mother cells of Manglietia patungensis, an endangered species

doi:10.1360/aps040119

CORC > 武汉植物园 > 中国科学院武汉植物园

	Meiotic observations on the pollen mother cells of Manglietia patungensis, an endangered species
	He, ZC; Li, XD; Li, JQ
刊名	ACTA PHYTOTAXONOMICA SINICA
	2005-11-01
卷号	43 期号:6 页码:526-532
关键词	Manglietia patungensis Manglietia yuyuanensis endangered species meiosis
ISSN号	0529-1526
DOI	10.1360/aps040119
英文摘要	A comparative study of meiosis of pollen mother cells in Manglietia patungensis Hu and its closely related species M yuyuanensis Law was carried out. These two species had the same chromosome number of 2n=38 and the same karyotype, but their chromosomal behaviors in meiosis were different. In M patungensis, the typical chromosome configurations observed at metaphase were 2n=0.30IV+18.33II+0.15I, whereas those in M yuyuanensis were 2n=19II, indicating that some chromosomes in M patungensis might have undergone inversion and that some chromosome components were possibly paracentric inversion heterozygotes. The abnormal rate of chromosomal behaviors at anaphase I and II was different in the two species. At anaphase II, 8.8% cells were observed with lagging chromosomes which in each cell did not exceed two in M yuyuanensis, but in M. patungensis, 29.2% cells were observed with lagging chromosomes which could reach 11 in each cell. Additionally, broken chromosomes were observed in M patungensis. The above results indicate that the abnormal rate of chromosomal behaviors in the meiosis of M patungensis was higher than that in M yuyuanensis. The abnormal behaviors of the chromosomes in meiosis observed in M patungensis may have affected the development of pollen grains in this species.
WOS研究方向	Plant Sciences
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000233687600005
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/1192]
专题	中国科学院武汉植物园
通讯作者	Li, JQ
作者单位	Chinese Acad Sci, Wuhan Bot Garden, Wuhan 430074, Peoples R China
推荐引用方式 GB/T 7714	He, ZC,Li, XD,Li, JQ. Meiotic observations on the pollen mother cells of Manglietia patungensis, an endangered species[J]. ACTA PHYTOTAXONOMICA SINICA,2005,43(6):526-532.
APA	He, ZC,Li, XD,&Li, JQ.(2005).Meiotic observations on the pollen mother cells of Manglietia patungensis, an endangered species.ACTA PHYTOTAXONOMICA SINICA,43(6),526-532.
MLA	He, ZC,et al."Meiotic observations on the pollen mother cells of Manglietia patungensis, an endangered species".ACTA PHYTOTAXONOMICA SINICA 43.6(2005):526-532.