NDLI: Karyotypic, palynological, and RAPD study on 12 taxa from two subsections of section Idaeobatus in Rubus L. and taxonomic treatment of R. ellipticus, R. pinfaensis, and R. ellipticus var. obcordatus

Content Provider	Springer Nature Link
Author	Wang, Xiao Rong Tang, Hao Ru Zhang, Han Wu Zhong, Bi Feng Xia, Wu Feng Liu, Yuan
Copyright Year	2009
Abstract	Twelve taxa belonging to two subsections of section Idaeobatus in Rubus L. from southwestern China were characterized by karyotypic, palynological, and random amplified polymorphic DNA (RAPD) data as follows: (1) The 12 taxa were all diploid species (2n = 2x = 14), among which the chromosome counts for R. mesogaeus var. oxycomus, R. subtibetanus, R. ellipticus var. obcordatus, R. inopertus var. echinocalyx, and R. stans were reported for the first time; (2) All taxa except for R. ellipticus and R. pinfaensis could be distinguished from each other by karyotype, pollen morphology, and RAPD markers. Karyotypes were mainly characterized by the difference in numbers and positions of submetacentric chromosomes and chromosomes with satellited pair, the index of the karyotypic asymmetry, and the ratio of the longest to the shortest chromosome. Pollen morphology were mainly characterized by the discrepancy in specific pollen size, P/E ratio, colpi width, distance between the apices of two ectocolpi, and exine ornamentation characters. The cluster results based on RAPD markers were consistent with morphology classification except for R. pinfaensis; (3) Based on the general data of karyotypic, palynological, and RAPD, R. ellipticus var. obcordatus should be treated as a species R. obcordatus, R. ellipticus and R. pinfaensis should be combined as R. ellipticus, and it was more reasonable to place the combinants and R. obcordatus into subsection Stimulantes rather than into subsection Pungentes.
Starting Page	9
Ending Page	18
Page Count	10
File Format	PDF
ISSN	03782697
Journal	Plant Systematics and Evolution
Volume Number	283
Issue Number	1-2
e-ISSN	16156110
Language	English
Publisher	Springer Vienna
Publisher Date	2009-09-16
Publisher Place	Vienna
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Chromosomes Karyotype Palynology RAPD marker Taxonomic treatment Plant Systematics/Taxonomy/Biogeography Plant Anatomy/Development Plant Ecology Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Plant Science Ecology, Evolution, Behavior and Systematics

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