Arceuthobium Gillii and A. Nigrum (viscaceae) revisited

Distribution, morphology, and RDNA-its analysis

Shawn C. Kenaley, Robert L Mathiasen

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Additional morphological, phenological, and molecular data were obtained for Arceulhobium gillii and A. nigrum from throughout their geographic distributions in northern Mexico and southern Arizona. Multivariate analysis of variance (MANOVA) and discriminant function analysis demonstrated that A. gillii and A. nigrum are distinguishable morphologically. Discriminant function analysis also indicated that the dimensions of the third internode (length and width) and basal diameter of female and male plants contributed most to the classification and predication of species. Significant differences in plant height (female and male) as well as flower and fruit dimensions were also evident between these dwarf mistletoes, A. nigrum having larger dimensions for each of these characters. Although A. nigrum purportedly flowers twice annually (spring and fall), our observations indicated that the period of anthesis for this mistletoe occurs only once annually-fall to early winter. In contrast, A. gillii flowers in the spring; thereby, suggesting that these taxa likely are reproductively isolated. Phydogenetic analyses of nucleotide sequences of the rDN A internal transcribed spacer (ITS) region delineated both taxa, resolving A. gillii to a monophy-letic clade strongly supported by bootstrap and Bayesian credibility values. Collectively, A. gillii and A. nigrum are well-defined morphologically and distinguishable molecularly, supporting the classification of these taxa at the specific rank.

Original languageEnglish (US)
Pages (from-to)311-322
Number of pages12
JournalJournal of the Botanical Research Institute of Texas
Volume7
Issue number1
StatePublished - Aug 27 2013

Fingerprint

Arceuthobium
Santalaceae
Santalales
flower
discriminant analysis
flowers
male flowers
female flowers
multivariate analysis
variance analysis
internodes
internal transcribed spacers
geographical distribution
fruit
analysis of variance
Mexico
flowering
nucleotide sequences
fruits
winter

Keywords

  • Dwarf mistletoe
  • Hosts
  • MANOVA
  • Pinus chihuahuana
  • Pinus leiophylla
  • Taxonomy

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Plant Science

Cite this

@article{7afd6f145cd14399b0bb88384490e656,
title = "Arceuthobium Gillii and A. Nigrum (viscaceae) revisited: Distribution, morphology, and RDNA-its analysis",
abstract = "Additional morphological, phenological, and molecular data were obtained for Arceulhobium gillii and A. nigrum from throughout their geographic distributions in northern Mexico and southern Arizona. Multivariate analysis of variance (MANOVA) and discriminant function analysis demonstrated that A. gillii and A. nigrum are distinguishable morphologically. Discriminant function analysis also indicated that the dimensions of the third internode (length and width) and basal diameter of female and male plants contributed most to the classification and predication of species. Significant differences in plant height (female and male) as well as flower and fruit dimensions were also evident between these dwarf mistletoes, A. nigrum having larger dimensions for each of these characters. Although A. nigrum purportedly flowers twice annually (spring and fall), our observations indicated that the period of anthesis for this mistletoe occurs only once annually-fall to early winter. In contrast, A. gillii flowers in the spring; thereby, suggesting that these taxa likely are reproductively isolated. Phydogenetic analyses of nucleotide sequences of the rDN A internal transcribed spacer (ITS) region delineated both taxa, resolving A. gillii to a monophy-letic clade strongly supported by bootstrap and Bayesian credibility values. Collectively, A. gillii and A. nigrum are well-defined morphologically and distinguishable molecularly, supporting the classification of these taxa at the specific rank.",
keywords = "Dwarf mistletoe, Hosts, MANOVA, Pinus chihuahuana, Pinus leiophylla, Taxonomy",
author = "Kenaley, {Shawn C.} and Mathiasen, {Robert L}",
year = "2013",
month = "8",
day = "27",
language = "English (US)",
volume = "7",
pages = "311--322",
journal = "Journal of the Botanical Research Institute of Texas",
issn = "1934-5259",
publisher = "Botanical Research Institute of Texas Inc.",
number = "1",

}

TY - JOUR

T1 - Arceuthobium Gillii and A. Nigrum (viscaceae) revisited

T2 - Distribution, morphology, and RDNA-its analysis

AU - Kenaley, Shawn C.

AU - Mathiasen, Robert L

PY - 2013/8/27

Y1 - 2013/8/27

N2 - Additional morphological, phenological, and molecular data were obtained for Arceulhobium gillii and A. nigrum from throughout their geographic distributions in northern Mexico and southern Arizona. Multivariate analysis of variance (MANOVA) and discriminant function analysis demonstrated that A. gillii and A. nigrum are distinguishable morphologically. Discriminant function analysis also indicated that the dimensions of the third internode (length and width) and basal diameter of female and male plants contributed most to the classification and predication of species. Significant differences in plant height (female and male) as well as flower and fruit dimensions were also evident between these dwarf mistletoes, A. nigrum having larger dimensions for each of these characters. Although A. nigrum purportedly flowers twice annually (spring and fall), our observations indicated that the period of anthesis for this mistletoe occurs only once annually-fall to early winter. In contrast, A. gillii flowers in the spring; thereby, suggesting that these taxa likely are reproductively isolated. Phydogenetic analyses of nucleotide sequences of the rDN A internal transcribed spacer (ITS) region delineated both taxa, resolving A. gillii to a monophy-letic clade strongly supported by bootstrap and Bayesian credibility values. Collectively, A. gillii and A. nigrum are well-defined morphologically and distinguishable molecularly, supporting the classification of these taxa at the specific rank.

AB - Additional morphological, phenological, and molecular data were obtained for Arceulhobium gillii and A. nigrum from throughout their geographic distributions in northern Mexico and southern Arizona. Multivariate analysis of variance (MANOVA) and discriminant function analysis demonstrated that A. gillii and A. nigrum are distinguishable morphologically. Discriminant function analysis also indicated that the dimensions of the third internode (length and width) and basal diameter of female and male plants contributed most to the classification and predication of species. Significant differences in plant height (female and male) as well as flower and fruit dimensions were also evident between these dwarf mistletoes, A. nigrum having larger dimensions for each of these characters. Although A. nigrum purportedly flowers twice annually (spring and fall), our observations indicated that the period of anthesis for this mistletoe occurs only once annually-fall to early winter. In contrast, A. gillii flowers in the spring; thereby, suggesting that these taxa likely are reproductively isolated. Phydogenetic analyses of nucleotide sequences of the rDN A internal transcribed spacer (ITS) region delineated both taxa, resolving A. gillii to a monophy-letic clade strongly supported by bootstrap and Bayesian credibility values. Collectively, A. gillii and A. nigrum are well-defined morphologically and distinguishable molecularly, supporting the classification of these taxa at the specific rank.

KW - Dwarf mistletoe

KW - Hosts

KW - MANOVA

KW - Pinus chihuahuana

KW - Pinus leiophylla

KW - Taxonomy

UR - http://www.scopus.com/inward/record.url?scp=84891937964&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84891937964&partnerID=8YFLogxK

M3 - Article

VL - 7

SP - 311

EP - 322

JO - Journal of the Botanical Research Institute of Texas

JF - Journal of the Botanical Research Institute of Texas

SN - 1934-5259

IS - 1

ER -