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"Tuttle, Don"
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Silk and cotton : textiles from the Central Asia that was
The traditional textiles of Central Asia are an unknown treasure, now revealed in this book. Straddling the legendary Silk Road, this vast region stretches from the Caspian Sea in the west to the Gobi Desert in the east and is home to hundreds of tribes. Whether nomadic or sedentary, its peoples created textiles that related to every aspect of their way of life, from ceremonial objects marking rites of passage to everyday garments to practical items for the home. There were suzanis for the marriage bed; niche covers; prayer mats; patchwork bedding quilts; camel trappings for Turkmen bridal processions; bags for tea, scissors and mirrors; lovingly embroidered children's hats and bibs and robes of every colour and pattern. Author Susan Meller has spent years assembling the extraordinary collection of 590 textiles illustrated in this book. She documents their history, use and meaning.
Book
MulvannyG2 Architecture
Savvy regional malls are beginning to implement a powerful strategy to combat this market-share erosion. Calling on top retail architects, they're going beyond mere revitalization efforts to fully reinvent what their mall can be. One firm that's getting much of this work is MulvannyG2 Architecture, headquartered in Bellevue, Wash. According to firm President Mitch Smith, \"The days of One mall fits all' are over.
Trade Publication Article
Half of Fertile Acres Gone in 25 Years
At a hearing in Brooklyn, Conn., on the preservation of agricultural land, a man said, \"Midas had a lot of gold, but he starved to death.\"
Newspaper Article
Modifications to a LATE MERISTEM IDENTITY1 gene are responsible for the major leaf shapes of Upland cotton (Gossypium hirsutum L.)
Leaf shape varies spectacularly among plants. Leaves are the primary source of photoassimilate in crop plants, and understanding the genetic basis of variation in leaf morphology is critical to improving agricultural productivity. Leaf shape played a unique role in cotton improvement, as breeders have selected for entire and lobed leaf morphs resulting from a single locus, okra (L-D₁), which is responsible for the major leaf shapes in cotton. The L-D₁ locus is not only of agricultural importance in cotton, but through pioneering chimeric and morphometric studies, it has contributed to fundamental knowledge about leaf development. Here we show that an HD-Zip transcription factor homologous to the LATE MERISTEM IDENTITY1 (LMI1) gene of Arabidopsis is the causal gene underlying the L-D₁ locus. The classical okra leaf shape allele has a 133-bp tandem duplication in the promoter, correlated with elevated expression, whereas an 8-bp deletion in the third exon of the presumed wild-type normal allele causes a frame-shifted and truncated coding sequence. Our results indicate that subokra is the ancestral leaf shape of tetraploid cotton that gave rise to the okra allele and that normal is a derived mutant allele that came to predominate and define the leaf shape of cultivated cotton. Virus-induced gene silencing (VIGS) of the LMI1-like gene in an okra variety was sufficient to induce normal leaf formation. The developmental changes in leaves conferred by this gene are associated with a photosynthetic transcriptomic signature, substantiating its use by breeders to produce a superior cotton ideotype.
Journal Article
HETDEX OIII Emitters I: A spectroscopically selected low-redshift population of low-mass, low-metallicity galaxies
We assemble a sample of 17 low metallicity (7.45 < log(O/H)+12 < 8.12) galaxies with z < 0.1 found spectroscopically, without photometric pre-selection, in early data from the Hobby Eberly Telescope Dark Energy Experiment (HETDEX). Star forming galaxies that occupy the lowest mass and metallicity end of the mass-metallicity relation tend to be under sampled in continuum-based surveys as their spectra are typically dominated by emission from newly forming stars. We search for galaxies with high [OIII]\\(\\lambda\\)5007 / [OII]\\(\\lambda\\)3727, implying highly ionized nebular emission often indicative of low metallicity systems. With the Second Generation Low Resolution Spectrograph on the Hobby Eberly Telescope we acquired follow-up spectra, with higher resolution and broader wavelength coverage, of each low-metallicity candidate in order to confirm the redshift, measure the H\\(\\alpha\\) and [NII] line strengths and, in many cases, obtain deeper spectra of the blue lines. We find our galaxies are consistent with the mass-metallicity relation of typical low mass galaxies. However, galaxies in our sample tend to have similar specific star formation rates (sSFRs) as the incredibly rare \"blueberry\" galaxies found in (Yang et. al. 2017). We illustrate the power of spectroscopic surveys for finding low mass and metallicity galaxies and reveal that we find a sample of galaxies that are a hybrid between the properties of typical dwarf galaxies and the more extreme blueberry galaxies.
Paper
Modifications to a LATE MERISTEM IDENTITY-1 gene are responsible for the major leaf shapes of cotton
Leaf shape is spectacularly diverse. As the primary source of photo-assimilate in major crops, understanding the evolutionary and environmentally induced changes in leaf morphology are critical to improving agricultural productivity. The role of leaf shape in cotton domestication is unique, as breeders have purposefully selected for entire and lobed leaf morphs resulting from a single locus, okra (L-D1). The okra locus is not only of agricultural importance in cotton (Gossypium hirsutum L.), but through pioneering chimeric and morphometric studies it has contributed to fundamental knowledge about leaf development. Here we show that the major leaf shapes of cotton at the L-D1 locus are controlled by a HD-Zip transcription factor most similar to Late Meristem Identity1 (LMI1) gene. The classical okra leaf shape gene has133-bp tandem duplication in the promoter, correlated with elevated expression, while an 8-bp deletion in the third exon of the presumed wild-type normal leaf causes a frame-shifted and truncated coding sequence. Virus-induced gene silencing (VIGS) of this LMI1-like gene in an okra variety was sufficient to induce normal leaf formation. An intermediate leaf shape allele, sub-okra, lacks both the promoter duplication and the exonic deletion. Our results indicate that sub-okra is the ancestral leaf shape of tetraploid cotton and normal is a derived mutant allele that came to predominate and define the leaf shape of cultivated cotton.
Paper
Modifications to a LATE MERISTEM IDENTITY-1 gene are responsible for the major leaf shapes of Upland cotton (Gossypium hirsutum L.)
Leaf shape is spectacularly diverse. As the primary source of photo-assimilate in major crops, understanding the evolutionary and environmentally induced changes in leaf morphology are critical to improving agricultural productivity. The role of leaf shape in cotton domestication is unique, as breeders have purposefully selected for entire and lobed leaf morphs resulting from a single locus, okra (L-D1). The okra locus is not only of agricultural importance in cotton (Gossypium hirsutum L.), but through pioneering chimeric and morphometric studies it has contributed to fundamental knowledge about leaf development. Here we show that the major leaf shapes of cotton at the L-D1 locus are controlled by a HD-Zip transcription factor most similar to Late Meristem Identity1 (LMI1) gene. The classical okra leaf shape gene has 133-bp tandem duplication in the promoter, correlated with elevated expression, while an 8-bp deletion in the third exon of the presumed wild-type normal leaf causes a frame-shifted and truncated coding sequence. Virus-induced gene silencing (VIGS) of this LMI1-like gene in an okra variety was sufficient to induce normal leaf formation. An intermediate leaf shape allele, sub-okra, lacks both the promoter duplication and the exonic deletion. Our results indicate that sub-okra is the ancestral leaf shape of tetraploid cotton and normal is a derived mutant allele that came to predominate and define the leaf shape of cultivated cotton.
Paper
HUNT THE SPOTS THE EXPERTS PICK
Except for quail, all species in the Northeast are holding their own, with wild turkey the game bird to watch and spruce grouse still plentiful in east Canada and Maine. An excellent nesting season followed the mild winter. Partridge drumming this spring was widespread, and in northeastern Maine my fishing guides told me the drumming in their area was the heaviest within memory.
Magazine Article