Phylogenetic Relationships of Pinus Subsection Ponderosae Inferred from Rapidly Evolving cpDNA Regions

Gernandt, David S.; Hernández-León, Sergio; Salgado-Hernández, Esmeralda; Rosa, Jorge A. Pérez de la

doi:10.1600/036364409789271290

Cited by 54 publications

(60 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The grouping seems to match with a taxonomic treatment of Farjon (2005) and some molecular phylogeny (Liston et al 1999;López et al 2002;Zhang and Li 2004;Eckert and Hall 2006;Gernandt et al 2009;Hernández-León et al 2013;Wang and Wang 2014). In this observation fluorescent band patterns of chromosomes are performed in moderate number of Pinus species.…”

Section: Discussionsupporting

confidence: 80%

“…subsection Pinus by unknown structural change of chromosomes and then this karyotype may be advance and divorced recently in pine species. This speculation should be considered with taxonomic treatments (Mirov 1967;Little and Critchfield 1969;Farjon and Styles 1977;Farjon 2005) and molecular phylogeny (Price et al 1998;Liston et al 1999;López et al 2002;Zhang and Li 2004;Eckert and Hall 2006;Gernandt et al 2009;Hernández-León et al 2013;Wang and Wang 2014).…”

Section: P Yunnanensismentioning

confidence: 99%

See 1 more Smart Citation

Chromosome banding in the genus Pinus V. Fluorescent banding patterns in 16 diploxylon pines

et al. 2016

View full text Add to dashboard Cite

ABSTRACT:In Pinus , Subgenus Pinus 16 species were investigated on their somatic chromosomes by a fluorescent banding technique using chromomycin A 3 (CMA) and 4',6-diamidino-2-phenylindole (DAPI). The chromosome number of 2n=24 was commonly counted in all the species studied. Their karyotypes were composed of many long metacentric chromosomes and a few short submetacentric chromosomes, and two karyotypes were recognized in respect to number of short chromosomes in the subgenus. CMA-bands appeared at an interstitial and/or proximal region of chromosomes and DAPI-band did at a proximal region. Thin DAPI-bands appeared at interstitial regions and DAPI-dots appeared at a centromeric region in most chromosomes. In a chromosome complement each homologous chromosome was identified on the base of its shape and fluorescent banding pattern. The typical banding patterns were compared among the species studied. Many interstitial CMA-bands at the secondary constrictions appeared on many metacentric chromosomes. Proximal fluorescent bands varied in fluorescent nature and number and divided into several groups. Section Pinus short three chromosome pairs were two or three patterns of fluorescent banding. The section Trifolae species had many proximal DAPI-bands and less proximal CMA-bands than section Pinus. The shortest chromosome had proximal bands indicating two groups on the kinds of fluorescent band.

show abstract

Section: Discussionsupporting

confidence: 80%

Section: P Yunnanensismentioning

confidence: 99%

Chromosome banding in the genus Pinus V. Fluorescent banding patterns in 16 diploxylon pines

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Ovales), Gramineae (e.g., tribe Orcuttieae), Iridaceae, Liliaceae, Melanthiaceae, and Themidaceae. Conifer diversification has been most extensive in Hesperocyparis (Cupressaceae), which now appears to be a north temperate (Asian) rather than Mediterranean or Madro-Tethyan element (Terry et al 2012), and in the big-cone pines (Pinus coulteri, P. sabiniana, P. torreyana; Gernandt et al 2009) and closed-cone pines (P. attenuata, P. muricata, P. radiata; Eckert & Hall 2006). Fern and lycophyte diversifications are best represented by families with desiccation-tolerant taxa, particularly Pteridaceae (e.g., Pentagramma) and Selaginellaceae (Selaginella subg.…”

Section: Diversification In Ca-fp Vascular Plantsmentioning

confidence: 99%

Origins of Plant Diversity in the California Floristic Province

Baldwin

2014

Annu. Rev. Ecol. Evol. Syst.

View full text Add to dashboard Cite

Recent biogeographic and evolutionary studies have led to improved understanding of the origins of exceptionally high plant diversity in the California Floristic Province (CA-FP). Spatial analyses of Californian plant diversity and endemism reinforce the importance of geographically isolated areas of high topographic and edaphic complexity as floristic hot spots, in which the relative influence of factors promoting evolutionary divergence and buffering of lineages against extinction has gained increased attention. Molecular phylogenetic studies spanning the flora indicate that immediate sources of CA-FP lineages bearing endemic species diversity have been mostly within North America-especially within the west and southwest-even for groups of north temperate affinity, and that most diversification of extant lineages in the CA-FP has occurred since the mid-Miocene, with the transition toward summer-drying. Process-focused studies continue to implicate environmental heterogeneity at local or broad geographic scales in evolutionary divergence within the CA-FP, often associated with reproductive or life-history shifts or sometimes hybridization.

show abstract

“…Since we were unable to find coefficients for v www.esajournals.org specific gravity and average squared diameters of fine fuel particles for SMOc species, we used the coefficients for Pinus ponderosa, a species closely related to P. durangensis (Gernandt et al 2009). …”

Section: Laboratory Methods and Data Analysismentioning

confidence: 99%

Linking old‐growth forest composition, structure, fire history, climate and land‐use in the mountains of northern México

et al. 2012

View full text Add to dashboard Cite

Old‐growth forests are biologically and ecologically valuable systems that are disappearing worldwide at a rapid rate. México still holds large areas covered by temperate forests in the mountains of the Sierra Madre Occidental, but few of these retain old‐growth characteristics. We studied four sites with remnant old‐growth forests in Mesa de las Guacamayas, a site in the Sierra Madre Occidental in northwestern Chihuahua, to assess their composition, structure, and age characteristics. Overstory tree densities and basal areas at each site were based on measurements of all trees >1.3 m tall. The overstory was dominated by large Pinus durangensis, P. strobiformis, and Pseudotsuga menziesii (270–335 trees ha−1, basal area 24–42 m2 ha−1), with a subcanopy formed mostly of oaks. This species composition, combined with the lack of vertical structural development, and thus of fuel ladders, suggests that these forests are relatively resistant to severe wildfire. We evaluated forest attributes in the context of local fire regimes and regional climatic patterns, and found that frequent disturbance by surface fires has been part of the study sites' histories for at least 250 years. While climate was a driver of fire regimes historically in this mountain range, humans appear to have played a role in interruptions of the fire regime in the second half of the 20th century. Age distributions showed recruitment to the canopy over ∼250 years, while fires in the four sites recurred every 6–12 years. Temporary interruption of the fire regime in the mid‐20th century at three sites was associated with increased tree establishment, especially by broadleaved species. One site had an uninterrupted fire regime and showed continuous tree establishment, consistent with the self‐reinforcing role of frequent fire in regulating live and dead fuel loads. Remnant old‐growth forests such as those we sampled are becoming increasingly rare in the Sierra Madre Occidental. The biodiversity and ecological processes that they support are highly threatened and their conservation must be made a priority in the U.S.‐México borderlands.

show abstract

Phylogenetic Relationships of Pinus Subsection Ponderosae Inferred from Rapidly Evolving cpDNA Regions

Cited by 54 publications

References 50 publications

Chromosome banding in the genus <i>Pinus</i> V. Fluorescent banding patterns in 16 diploxylon pines

Chromosome banding in the genus <i>Pinus</i> V. Fluorescent banding patterns in 16 diploxylon pines

Origins of Plant Diversity in the California Floristic Province

Linking old‐growth forest composition, structure, fire history, climate and land‐use in the mountains of northern México

Contact Info

Product

Resources

About