Ranking the value of germplasm: new oil palm (<scp>E</scp>laeis guineensis) breeding stocks as a case study

Wening, Sri; Croxford, Adam E.; Ford, Caroline S.; Thomas, William; Forster, B. P.; Okyere-Boateng, G.; Nelson, S. P. C.; Caligari, P. D. S.; Wilkinson, M. J.

doi:10.1111/j.1744-7348.2011.00527.x

Cited by 7 publications

(4 citation statements)

References 44 publications

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“…Penelitian tentang keragaman genetik aksesi plasma nutfah asal Afrika diantaranya Arias et al (2012) pada aksesi asal Kamerun menghasilkan rata-rata jumlah alel 7.5 dan Wening et al (2012) pada aksesi asal Ghana menghasilkan rata-rata jumlah alel sebanyak 9.9 alel. Kedua penelitian tersebut menghasilkan jumlah alel yang lebih banyak dibandingkan dengan jumlah alel pada penelitian ini.…”

Section: Parameter Keragaman Alelik Berdasarkan 20 Lokus Mikrosatelitunclassified

Keragaman Genetik Kelapa Sawit (Elaeis guineensis Jacq.) Asal Angola Menggunakan Marka SSR

2015

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ABSTRACTEffort to increase productivity and other elite characters in Indonesia oil palm breeding program is facing a problem because of the narrow genetic diversity. To broaden the genetic diversity, germplasm exploration has been done in Angola, Central Africa. The objective of this research was to assess the genetic diversity and population structure of Angola originated oil palm germplasm based on 20 SSR markers. The plant materials used were 27 accessions consisted of 136 palms planted in Riau, Sumatera. The DNA was isolated and amplified using PCR. Phylogeny analysis was constructed using Unrooted Neighbor-Joining by DARwin software 6.0.8. The result showed that polymorphic information content (PIC) value is 0.55 (0.17 to 0.75 for each locus) with 102 total number of alleles. Genetic diversity between individuals was higher compared to the genetic diversity within accessions or regions and between accessions or regions. Phylogenetic analysis of 27 accessions showed that accessions were divided into three main groups. Every group containing individuals originated from 5 spatial distribution regions. Principal coordinates analysis (PCoA) showed that accessions were distributed in one structure. Using more primers and samples to get more representative data is recommended for the following research.Keywords: allele, locus, germplasm, molecular marker, polymorphic

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Section: Parameter Keragaman Alelik Berdasarkan 20 Lokus Mikrosatelitunclassified

Keragaman Genetik Kelapa Sawit (Elaeis guineensis Jacq.) Asal Angola Menggunakan Marka SSR

2015

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“…For example, the genetic variation among elite orange, lemon, lime, and grapefruit cultivars is extremely narrow (Moore, 2001). Even though outcrossing is the norm in many perennials, many commercial cultivars have a restricted genetic base, for example, in cacao (Schnell et al, 2007) and oil palm (Cochard et al, 2009; Wening et al, 2012). In olives, there appears to be a fair amount of genetic diversity present in cultivated germplasm (Sensi et al, 2003), but this variability is dwindling rapidly as growers adopt modern growing practices and plant monocultures of a small number of cultivars (Haouane et al, 2011).…”

Section: The Perennial Problemmentioning

confidence: 99%

Genomics: A potential panacea for the perennial problem

McClure

Sawler

Gardner

et al. 2014

American J of Botany

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Perennial crops represent important fresh and processed food sources worldwide, but advancements in breeding perennials are often impeded due to their very nature. The perennial crops we rely on most for food take several years to reach production maturity and require large spaces to grow, which make breeding new cultivars costly compared with most annual crops. Because breeding perennials is inefficient and expensive, they are often grown in monocultures consisting of small numbers of elite cultivars that are vegetatively propagated for decades or even centuries. This practice puts many perennial crops at risk for calamity since they remain stationary in the face of evolving pest and disease pressures. Although there is tremendous genetic diversity available to them, perennial crop breeders often struggle to generate commercially successful cultivars in a timely and cost-effective manner because of the high costs of breeding. Moreover, consumers often expect the same cultivars to be available indefinitely, and there is often little or no incentive for growers and retailers to take the risk of adopting new cultivars. While genomics studies linking DNA variants to commercially important traits have been performed in diverse perennial crops, the translation of these studies into accelerated breeding of improved cultivars has been limited. Here we explain the "perennial problem" in detail and demonstrate how modern genomics tools can significantly improve the cost effectiveness of breeding perennial crops and thereby prevent crucial food sources from succumbing to the perils of perpetual propagation.

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“…Currently oil palm is genetically vulnerable to future challenges and improvements in performance will likely come from the introduction of fresh breeding stocks. As such, new methods to evaluate the potential of novel genotypes to augment existing stocks are essential (see Wening et al ., ).…”

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confidence: 97%