Genetics and classical breeding.

Lahav, E.; Lavi, U.; Whiley, A. W.; Schaffer, Bruce; Wolstenholme, B. N.

doi:10.1079/9780851993577.0039

Cited by 20 publications

(9 citation statements)

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“…A common vegetative feature of domesticated perennials is dwarfi sm, which has been documented in avocado ( Persea americana Mill. ), castor ( Ricinus communis L.), coconut ( Cocos nucifera L.), and numerous Rosaceae crops; ( Zohary and Hopf, 2000 ); soybean ( Tian et al, 2010 ) Large Dwarf Avocado ( Lahav and Lavi, 2002 ); castor ( Singh, 1976 ); coconut ( Janick and Paull, 2008 ); papaya ( Niklas and Marler, 2007 ); apple, cherry, peach, pear, plum, citrus ( Tukey 1964 ) Ploidy level…”

Section: Indehiscentmentioning

confidence: 99%

From forest to field: Perennial fruit crop domestication

Miller

Gross²

2011

American J of Botany

353

354

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Long-lived perennials have lengthy juvenile phases, extensive outcrossing, widespread hybridization, and limited population structure. Under domestication, these features, combined with clonal propagation, multiple origins, and ongoing crop-wild gene flow, contribute to mild domestication bottlenecks in perennial fruit crops. Morphological changes under domestication have many parallels to annual crops, but with key differences for mating system evolution and mode of reproduction. Quantitative trait loci associated with domestication traits in perennials are mainly of minor effect and may not be stable across years. Future studies that take advantage of genomic approaches and consider demographic history will elucidate the genetics of agriculturally and ecologically important traits in perennial fruit crops and their wild relatives.

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Section: Indehiscentmentioning

confidence: 99%

From forest to field: Perennial fruit crop domestication

Miller

Gross²

2011

American J of Botany

353

354

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“…The three racial groups can be distinguished by the percentage of oil content in the fruit, with the West Indian cultivars ranging from 2.5% to 8.0%, Guatemalan accessions from 10% to 13%, and Mexican accessions ranging from 15% to 20% (Knight 2002 ) . The racial classes also vary phenotypically for characters such as fruit size and shape, skin thickness, skin color, seed size, and fruit ripening (Lahav and Lavi 2002 ) . Sterility barriers do not exist between or among the three racial types (Lahav and Lavi 2002 ) .…”

Section: Avocadomentioning

confidence: 99%

“…The racial classes also vary phenotypically for characters such as fruit size and shape, skin thickness, skin color, seed size, and fruit ripening (Lahav and Lavi 2002 ) . Sterility barriers do not exist between or among the three racial types (Lahav and Lavi 2002 ) . Avocado has a distinct fl owering habit known as protogynous, diurnally synchronous dichogamy (Bergh 1969 ) .…”

Section: Avocadomentioning

confidence: 99%

Genomics of Tropical Fruit Tree Crops

Arias

Borrone

Tondo³

et al. 2012

Genomics of Tree Crops

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The genetic improvement of tropical fruit trees is limited when compared to progress achieved in temperate fruit trees and annual crops. Tropical fruit tree breeding programs require signi fi cant resources to develop new cultivars that are adapted to modern shipping and storage requirements. The use of molecular markers in tropical fruit tree breeding is greatly assisting in solving a number of dif fi cult challenges for breeders such as the development of complex family structures for recombination mapping and for recurrent selection. A review of the literature on molecular markers development and new techniques for increasing single-nucleotide polymorphic markers is discussed. The development of marker-assisted breeding for these tropical tree crops is also discussed.

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“…There exist avocado cultivars with tolerance to P. cinnamomi such as Duke 7, Thomas, G6, but ‘Martin Grande’ (G755), which is a hybrid between P. americana var. guatemalensis and Persea schiedeana , is considered highly tolerant to the infection (Coffey 1987, Lahav and Lavi 2002). Unfortunately, these cultivars do not have a good yield and their fruits do not present the quality attributes necessary for commercialization.…”

Section: Introductionmentioning

confidence: 99%

Identification of avocado (Persea americana) root proteins induced by infection with the oomycete Phytophthora cinnamomi using a proteomic approach

Acosta-Muñíz

Escobar‐Tovar

Valdés‐Rodríguez

et al. 2011

Physiologia Plantarum

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Avocado root rot, caused by Phytophthora cinnamomi, is the most important disease that limits avocado production. A proteomic approach was employed to identify proteins that are upregulated by infection with P. cinnamomi. Different proteins were shown to be differentially expressed after challenge with the pathogen by two-dimensional (2-D) gel electrophoresis. A densitometric evaluation of protein expression indicated differential regulation during the time-course analyzed. Some proteins induced in response to the infection were identified by standard peptide mass fingerprinting using matrix-assisted laser desorption/ionization-time of flight-mass spectrometry and sequencing by MALDI LIFT-TOF/TOF tandem mass spectrometry. Of the 400 protein spots detected on 2-D gels, 21 seemed to change in abundance by 3 hours after infection. Sixteen proteins were upregulated, 5 of these were only detected in infected roots and 11 showed an increased abundance. Among the differentially expressed proteins identified are homologs to isoflavone reductase, glutathione S-transferase, several abscisic acid stress-ripening proteins, cinnamyl alcohol dehydrogenase, cinnamoyl-CoA reductase, cysteine synthase and quinone reductase. A 17.3-kDa small heat-shock protein and a glycine-rich RNA-binding protein were identified as downregulated. Our group is the first to report on gene induction in response to oomycete infection in roots from avocado, using proteomic techniques.

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Genetics and classical breeding.

Cited by 20 publications

References 0 publications

From forest to field: Perennial fruit crop domestication

From forest to field: Perennial fruit crop domestication

Genomics of Tropical Fruit Tree Crops

Identification of avocado (Persea americana) root proteins induced by infection with the oomycete Phytophthora cinnamomi using a proteomic approach

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