Diversity and Relationships of Bhutanese Rubus

Alice, Lawrence A.; Dodson, T.M.; Sutherland, Brittany L.

doi:10.17660/actahortic.2008.777.5

Cited by 17 publications

(16 citation statements)

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“…Lineati of sect. Malachobatus (Alice et al, 2008 ). They also share some morphological similarities, such as unarmed stems, abaxial leaf surfaces, and palmately 3- or 5-foliate leaves (Lu and Boufford, 2003 ).…”

Section: Discussionmentioning

confidence: 99%

“…A lot of studies have attempted to gain phylogenetic information within Rubus using either maternally inherited chloroplast markers or a bi-parentally inherited ribosomal DNA marker. Molecular data, such as ndh F (Howarth et al, 1997 ; Morden et al, 2003 ; Zhang et al, 2015 ), rbc L (Imanishi et al, 2008 ), rpl 16 (Alice et al, 2008 ), trn G- trn S (Michael, 2006 ), trn L- trn F (Yang and Pak, 2006 ), and ITS (Alice and Campbell, 1999 ; Alice et al, 2001 ), have partially resolved some phylogenetic uncertainties of Rubus . However, most of these studies focused on European and American Rubus taxa (Alice and Campbell, 1999 ; Sochor et al, 2015 ).…”

Section: Introductionmentioning

confidence: 99%

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Phylogenetic Insights into Chinese Rubus (Rosaceae) from Multiple Chloroplast and Nuclear DNAs

Wang

Chen

et al. 2016

Front. Plant Sci.

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Rubus L. is a large and taxonomically complex genus, species of which exhibit apomixis, polyploidy, and frequent hybridization. Most of Chinese Rubus are assigned in two major sections, Idaeobatus and Malachobatus. To explore the phylogenetic relationships within Chinese Rubus, inferences upon three chloroplast DNA (rbcL, rpl20-rps12, and trnG-trnS), nuclear ribosomal ITS, and two low-copy nuclear markers (GBSSI-2 and PEPC) were deduced in 142 Rubus taxa from 17 subsections in 6 sections. nrITS and GBSSI-2 were the most informative among the six DNA regions assessed. Phylogenetic relationships within Rubus were well-resolved by combined nuclear datasets rather than chloroplast markers. The phylogenetic inferences strongly supported that section Idaeobatus was a polyphyletic group with four distant clades. All samples of sect. Malachobatus formed a monophyletic clade, in which R. tsangorum and R. amphidasys of sect. Dalibardastrum, and R. peltatus from subsection Peltati of sect. Idaeobatus were always nested. Rubus pentagonus (2n = 2x = 14) from subsect. Alpestres of sect. Idaeobatus was a sister group to the polyploid sect. Malachobatus, as well as the polytomy of three sect. Cyalctis members. This suggests that some polyploids of Malachobatus might originate from common ancestors, via polyploidization of hybrids between R. pentagonus and sect. Cylactis species. They had experienced species explosion in a short time. Section Dalibardastrum species have potential parental lineages from subsects. Moluccani and Stipulosi of sect. Malachobatus. Based on molecular phylogenies, we also provided recommendations for the taxonomic treatments of four taxa. In addition, our results showed certain incongruence between chloroplast and nuclear markers, which might be due to hybridization and introgression.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Phylogenetic Insights into Chinese Rubus (Rosaceae) from Multiple Chloroplast and Nuclear DNAs

Wang

Chen

et al. 2016

Front. Plant Sci.

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“…Genomic DNA was isolated from fresh leaves frozen at −80°C, leaves dried in silica gel desiccant, or herbarium specimens (Holmgren et al, 1990;Morden et al, 1996;Alice and Campbell, 1999;Alice et al, 2008) using a modified CTAB (hexadecyltrimethylammonium bromide) extraction method (Doyle and Doyle, 1987).…”

Section: Sampling and Dna Extractionmentioning

confidence: 99%

Target Capture Sequencing Unravels Rubus Evolution

et al. 2019

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“…glaber ( R01-8 ), R. parkeri ( R01-12 ), R. assamensis ( R01-10 ), R. multibracteatus ( R01-23 ), R. setchuenensis ( R01-24 ), and R. buergeri ( R01-11 ), were all of allopolyploidy origin. Moreover, based on the similar rDNA patterns, these tetraploid species probably shared common genomic composition, since they had a common ancestor as proposed by phylogenetic analysis based on different DNA sequences (Alice et al) [ 15 ].…”

Section: Discussionmentioning

confidence: 99%

“…However, molecular phylogenetic evidence from ITS markers did not seem to support this hypothesis [ 14 ]. Recently, Alice et al [ 15 ], with ITS, rpl 16, and trn L/F sequences, proposed the possibility that subg. Malachobatus was originated from subg.…”

Section: Introductionmentioning

confidence: 99%

Phylogenetic insight into subgenera Idaeobatus and Malachobatus (Rubus, Rosaceae) inferring from ISH analysis

Wang

Chen

et al. 2015

Mol Cytogenet

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BackgroundRubus is a large and taxonomically complex genus exhibiting agamospermy, polyploidy and frequent hybridization. The objective of this work was to elucidate rDNA disrtibution pattern and investigate genomic composition of polyploids in 16 Rubus taxa (2n = 2x, 3x, 4x, 8x) of two subgenera Idaeobatus and Malachobatus by ISH method.ResultsThe basic Rubus genome had one 45S rDNA locus, and all the polyploids (except R. setchuenensis) had the expected multiples of this number. Diploid and tetraploid Rubus taxa carried two 5S rDNA, whereas the triploid and octoploid species only had three. The duplicated 45S rDNA sites tended to be conserved, whereas those of 5S rDNA tended to be eliminated after polyploidization. The accession R03-20 was an autotriploid R. parvifolius, while R03-27 and R03-57 were naturally-occurred triploid hybrids between R. parvifolius and R. coreanus. GISH results suggested that R. parvifolius had close relationship with polyploids from Malachobatus.ConclusionsThe polyploids from Malachobatus were probable allopolyploid. In addition, Rubus parvifolius might be involved in hybridization, polyploidization and speciation of some Idaeobatus and Malachobatus species.

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Diversity and Relationships of Bhutanese Rubus

Cited by 17 publications

References 0 publications

Phylogenetic Insights into Chinese Rubus (Rosaceae) from Multiple Chloroplast and Nuclear DNAs

Phylogenetic Insights into Chinese Rubus (Rosaceae) from Multiple Chloroplast and Nuclear DNAs

Target Capture Sequencing Unravels Rubus Evolution

Phylogenetic insight into subgenera Idaeobatus and Malachobatus (Rubus, Rosaceae) inferring from ISH analysis

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