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About this product
Product Identifiers
PublisherSpringer
ISBN-100387962670
ISBN-139780387962672
eBay Product ID (ePID)138924
Product Key Features
Number of PagesXxiii, 528 Pages
LanguageEnglish
Publication NameBiotechnology and Ecology of Pollen
SubjectBiotechnology, Life Sciences / Botany, Life Sciences / Molecular Biology, General, Agriculture / General
Publication Year1986
TypeTextbook
AuthorG. Bergamini Mulcahy
Subject AreaNature, Technology & Engineering, Science
FormatHardcover
Dimensions
Item Weight41.4 Oz
Additional Product Features
Intended AudienceScholarly & Professional
LCCN85-030357
Dewey Edition19
Number of Volumes1 vol.
IllustratedYes
Dewey Decimal582/.0463
SynopsisIn Recognition of the Forgotten Generation D. L. MULCAHyl Pollen was long believed to serve primarily a single function, that of delivering male gametes to the egge A secondary and generally overlooked value of pollen is that it serves to block the transmission of many defective alleles and gene combinations into the next generation. This latter function comes about simply because pollen tubes carrying defective haploid genotypes frequently fail to complete growth through the entire length of the style. However, the beneficial consequences of this pollen selection are diluted by the fact that the same deleterious genotypes are often transmitted through the egg at strictly mendelian frequencies (Khush, 1973). Gene expression in the pollen might thus at least appear to be a phenomenon of trivial consequence. Indeed, Heslop-Harrison (1979) rightly termed the gametophytic portion of the angiosperm life cycle, the "forgotten generation." This neglect, however, came about despite subtle but constant indications that pollen is the site of intense gene activity and selection. For example, Mok and Peloquin (1975) demonstrated that relatively heterozygous diploid pollen shows heterotic characteristics whereas relatively homozygous diploid pOllen does not. This was proof positive that genes are expressed (that is, transcribed and translated) in the pollen. 1 Department of Botany, University of Massachusetts Amherst, MA 01003, USA viii However, the implications for pollen biology of even this recent and well known study were not widely recognized.
LC Classification NumberS1-S972GE1-350QH573
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