Polyploid speciation inHedera (Araliaceae): Phylogenetic and biogeographic insights based on chromosome counts and ITS sequences

Vargas, Pablo; McAllister, Hugh A.; Morton, Cynthia M.; Jury, Stephen L.; Wilkinson, Mike

doi:10.1007/bf00985577

Cited by 84 publications

(124 citation statements)

References 25 publications

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“…A systematic revision of P. crinita is therefore advisable. The presence of different ribotypes in the same genome has been frequently interpreted as an outcome of past reticulation events between divergent lineages either at the polyploid (Campbell & al., 1997;Vargas & al., 1999;Hodkinson & al., 2002;Yonemori & al., 2002) or diploid level (Wichman & al., 2002;Fuertes Aguilar & Nieto Feliner, 2003;Marhold & al., 2004). There is evidence suggesting that polymorphisms in Phlomis might be acquired by hybridization in our study.…”

Section: Discussionmentioning

confidence: 99%

Contrasting nuclear‐plastidial phylogenetic patterns in the recently diverged IberianPhlomis crinitaandP. lychnitislineages (Lamiaceae)

Albaladejo

Aguilar

Aparicio

et al. 2005

TAXON

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Systematic and evolutionary relationships within the diploid Western Mediterranean Phlomis crinita/lychnitis complex remain controversial apparently due to hybridization and introgression. This study examines patterns of sequence variation in the nuclear ribosomal DNA (ITS region) and three non‐coding plastid DNA regions (trnH‐psbA, trnT‐trnL and atpB‐rbcL) in this complex in an aim to clarify whether hybridization, introgression or lineage sorting resulting from recent diversification is mainly responsible for poorly understood relationships. Information recovered from nuclear and chloroplast markers was found to be strongly incongruent. Phylogenetic analysis of inferred nuclear ITS ribotypes is consistent with previous morphometric and taxonomic results in distinguishing two sister lineages, P. crinita s.l. and P. lychnitis. In addition, the high number of additive polymorphisms detected in ITS sequences suggests the sharing of ancestral variability and local patterns of gene flow within the complex. In contrast, the pattern of chloroplast haplotype variation is geographic rather than taxonomic, which might be caused by low mutation rates combined with frequent instances of interspecific hybridization. To integrate the apparently discordant plastid and nuclear evidence, we suggest that both lineage sorting and horizontal transfer have been involved. Even though pinpointing cases due to either phenomenon is difficult, the available data provide evidence of two sister lineages where hybridization events can be identified despite the inheritance of ancestral polymorphisms.

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Section: Discussionmentioning

confidence: 99%

Contrasting nuclear‐plastidial phylogenetic patterns in the recently diverged IberianPhlomis crinitaandP. lychnitislineages (Lamiaceae)

Albaladejo

Aguilar

Aparicio

et al. 2005

TAXON

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“…Geographical groups of taxa can include diff erent ploidy levels, diploids, and polyploids. Th ese studies also revealed that formerly used morphological traits such as trichome morphology are not considered evolutionarily stable in ivies (Green et al 2011, Vargas et al 1999.…”

Section: Introductionmentioning

confidence: 99%

“…In the last decades several morphological (Ackerfield and Wen 2002, Kost et al 2003, Sulgrove 2004, Valcárcel and Vargas 2010) and molecular studies (Vargas et al 1999, Grivet and Petit 2002, Green et al 2011 were performed on Hedera taxa with the aim of revealing phylogenetic relationships and evolution. However, molecular studies followed by cytometric measurements revealed that polyploidy was the major phenomena in the evolution of Hedera species, and might have taken place several times independently in diff erent lineages (Green et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Hedera crebrescens (Araliaceae) a newly identifi ed diploid taxon and triploid ivies from Hungary

Bényei-Himmer¹,

Tóth²,

Lengyel³

et al. 2017

Studia bot hung

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Bényei-Himmer, M., Tóth, E. Gy., Lengyel, Sz., Pintér, I., Bisztray, Gy. D. & Höhn, M. (2017): Hedera crebrescens (Araliaceae) a newly identifi ed diploid taxon and triploid ivies from Hungary.-Studia bot. hung. 48(2): 225-252.Abstract: Hedera crebrescens, a newly identifi ed species in Hungary is described here. Th is diploid ivy is not identical with the diploid H. helix. It grows vigorously, is invasive, and has spread into most parts of the country and adjacent regions. We also present two triploid species of hybrid origin, which were known formerly as selected varieties of H. helix. Triploids diff er from the presumed diploid and tetraploid parents based on their reproductive morphological traits and also based on their ecological demands.

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“…helix 2n = 48; ssp. hibernica 2n = 96 (Vargas et al 1999). Diploid cell DNA content of juvenile leaves is 3.6 pg, and of adult phase leaves 6.2 pg (Schäffner and Nagl, 1979).…”

Section: Introductionmentioning

confidence: 99%

“…Helix and 2n = 96 for ssp. Hibernica (Vargas et al, 1999). Midori et al (2006) identified in their study Hedera species and cultivars most responsible for the invasion of forests in the Pacific Northwest.…”

Section: Introductionmentioning

confidence: 99%

Utilization Od Different Markers for Hedera Helix, L. Germplasm Evaluation

Žiarovská¹,

Bošeľová²,

Zeleňáková³

et al. 2016

J microb biotech food sci

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Hedera helix is a plant that is valued for its medicinal properties and on the other hand criticized for its invading potential. Beside its medicinal use, a wide utilization as decorative plant is typical for this specie. Up-to date only a few molecular data are available for Hedera helix genome, thus the aim of the study was to evaluate the utilization of different DNA markers for the its further population studies purposes. In total, eight different DNA marker techniques were used for the PCR analysis – iPBS, BARE1 IRAP, Cassandra IRAP, Tst1 IRAP, HACRE 1 IRAP, RAPD, ISSR and miRNA. In total, 38 different iPBS primers were tested with the best results for primers 2152, 2270, 2079, 1899 and 2033. In the case of RAPD primers, all of them worked in the PCR excellent. For ISSR, only a 42 % of the used primers provided results that vere evaluated as very good or excellent ISSR profile. The most successful results were obtained by microsatelite repetitions (GA)8T, (CTG)3GC and (TG)10. A novel type of DNA markers – miRNA provided results that are promising for Hedera helix, L. population studies for their further utilization.

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Polyploid speciation inHedera (Araliaceae): Phylogenetic and biogeographic insights based on chromosome counts and ITS sequences

Cited by 84 publications

References 25 publications

Contrasting nuclear‐plastidial phylogenetic patterns in the recently diverged IberianPhlomis crinitaandP. lychnitislineages (Lamiaceae)

Contrasting nuclear‐plastidial phylogenetic patterns in the recently diverged IberianPhlomis crinitaandP. lychnitislineages (Lamiaceae)

Hedera crebrescens (Araliaceae) a newly identifi ed diploid taxon and triploid ivies from Hungary

Utilization Od Different Markers for Hedera Helix, L. Germplasm Evaluation

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