Evaluation of Common Bean (Phaseolus vulgaris L.) Varieties for Resistance to Bean Stem Maggot (Ophiomyia spp.) in Kenya

Kiptoo, Gaudencia J.; Kinyua, M. G.; Kiplagat, Oliver; Wanjala, F. M. E.; Kiptoo, Judith Jeruto; Cheboi, J. J.; Kimno, S. K.; Rotich, G; Ngurwe, Jared K.

doi:10.9734/ajea/2016/24915

Cited by 12 publications

(14 citation statements)

References 9 publications

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“…This could be the basis for identifying genotypes with superior and specific adaptation to different environments. These results support earlier studies that there is potentially adequate genetic variation for bean fly resistance and agronomic traits to support breeding efforts [ 19 , 20 ]. The wide variation would help improve bean fly resistance and other traits in common bean through conventional and molecular breeding.…”

Section: Discussionsupporting

confidence: 90%

“…The use of host plant resistance is regarded as the most sustainable method to manage insect pests and diseases. Over the past three decades, few bean fly resistance sources in common bean have been identified [19][20][21]. However, the utilisation of the genetic resources has been limited, and there are only a few commercial cultivars with bean fly resistance [22].…”

Section: Introductionmentioning

confidence: 99%

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Genome-wide association analysis of bean fly resistance and agro-morphological traits in common bean

et al. 2021

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The bean fly (Ophiomyia spp) is a key insect pest causing significant crop damage and yield loss in common bean (Phaseolus vulgaris L., 2n = 2x = 22). Development and deployment of agronomic superior and bean fly resistant common bean varieties aredependent on genetic variation and the identification of genes and genomic regions controlling economic traits. This study’s objective was to determine the population structure of a diverse panel of common bean genotypes and deduce associations between bean fly resistance and agronomic traits based on single nucleotide polymorphism (SNP) markers. Ninety-nine common bean genotypes were phenotyped in two seasons at two locations and genotyped with 16 565 SNP markers. The genotypes exhibited significant variation for bean fly damage severity (BDS), plant mortality rate (PMR), and pupa count (PC). Likewise, the genotypes showed significant variation for agro-morphological traits such as days to flowering (DTF), days to maturity (DTM), number of pods per plant (NPP), number of seeds per pod (NSP), and grain yield (GYD). The genotypes were delineated into two populations, which were based on the Andean and Mesoamerican gene pools. The genotypes exhibited a minimum membership coefficient of 0.60 to their respective populations. Eighty-three significant (P<0.01) markers were identified with an average linkage disequilibrium of 0.20 at 12Mb across the 11 chromosomes. Three markers were identified, each having pleiotropic effects on two traits: M100049197 (BDS and NPP), M3379537 (DTF and PC), and M13122571 (NPP and GYD). The identified markers are useful for marker-assisted selection in the breeding program to develop common bean genotypes with resistance to bean fly damage.

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Section: Discussionsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Genome-wide association analysis of bean fly resistance and agro-morphological traits in common bean

et al. 2021

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“…Common bean (Phaseolus vulgaris L.) is one of the most important leguminous vegetable and grain crops grown due to its nutrient and protein content rich pods and grains (Kiptoo et al 2016.;Wagara & Kimani. 2007) and it is a major food security crop in Kenya (Mogita et al 2017).…”

Section: Background Informationmentioning

confidence: 99%

INCIDENCE AND SEVERITY OF ANTHRACNOSE (Colletotrichum lindemuthianum) ON SELECTED COMMON BEAN (Phaseolus vulgaris L.) GENOTYPES

Kiptoo¹,

Kinyua²,

Kiplagat³

et al. 2020

AJAR

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Common bean (Phaseolus vulgaris L.), is among the most important legume crop for protein source in peoples' diet globally and including Kenya. Anthracnose (Colletotrichum lindemuthianum) is a common disease of legumes that causes yield loss of upto 90-100%. Potential production of common beans in Kenya is expected to be above 2000 kg ha-1 but due to challenges of pests and diseases among them anthracnose, it remains below potential yields. The aim of the recent study was to investigate selected common bean genotypes for anthracnose resistance in Kenya. The study was done in three varied agro-ecological zones; Busia, Bungoma and University of Eldoret. Fifteen genotypes were evaluated on field experiment to ascertain anthracnose incidence and severity. Four bean genotypes were used as experimental controls; two resistant and two susceptible controls. Data was collected on incidences and severity and subjected to Analysis of variance in SAS version 9.1. Mean values were separated using Tukeys' Studentized Range Test. The results revealed tolerant and resistant genotypes with lower incidences and severity than those of resistant controls while susceptible genotypes recorded higher incidences and severity than those of the susceptible controls. Tolerant genotypes were; Ciankui, Tasha, and KK8 while the resistant genotypes were; Miezi mbili, KK15 and Chelalang. Site variation was significant at (P≤0.05) with Busia 82%, Bungoma 76% and University of 53%. KK15, Tasha and Chelalang were tolerant in all sites, and this could be attributed to their genetic resistance. The six genotypes identified to be potentially tolerant and resistant to anthracnose and high yielding could be further studied and used in breeding programs for development of resistant lines globally and in Kenya.

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“…Interestingly, we found a strong positive association of leaf production, SLA and leaf area with the cumulative damage index. Overall, this finding may not appear to be very surprising since some plants can maintain high yields while being more susceptible to damage by pests (Lale & Kolo, 1998;Kimiti, Odee & Vanlauwe, 2009;Keneni, Bekele & Imtiaz, 2011;Kiptoo et al, 2016), perhaps because plants that allocate more resources to defense will have less to allocate toward growth or reproduction (Gong & Zhang, 2014). However, we emphasize the association of a higher cumulative damage index with greater leaf production, SLA and leaf area because SLA has been suggested as critical driver of variation in resource availability above ground (Poorter et al, 2012), which might help lima bean compensate for the resource limitation caused by the lost leaf area or even maximize light capture area (high SLA) (Evans & Poorter, 2001;Freschet, Swart & Cornelissen, 2015) through unfolding its leaves in such a way as to avoid leaf overlap (Santiago & Wright, 2007).…”

Section: Discussionmentioning

confidence: 98%

Determining relevant traits for selecting landrace accessions of Phaseolus lunatus L. for insect resistance

Ruiz-Santiago

Ballina-Gómez

Ruíz-Sánchez

et al. 2021

PeerJ

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Plant-insect interactions are a determining factor for sustainable crop production. Although plants can resist or tolerate herbivorous insects to varying degrees, even with the use of pesticides, insects can reduce plant net productivity by as much as 20%, so sustainable strategies for pest control with less dependence on chemicals are needed. Selecting plants with optimal resistance and photosynthetic traits can help minimize damage and maintain productivity. Here, 27 landrace accessions of lima beans, Phaseolus lunatus L., from the Yucatan Peninsula were evaluated in the field for morphological resistance traits, photosynthetic characteristics, insect damage and seed yield. Variation was found in physical leaf traits (number, area, and dry mass of leaves; trichome density, specific leaf thickness and hardness) and in physiological traits (photosynthetic rate, stomatal conductance, intercellular carbon, water-use efficiency, and transpiration). Five accessions (JMC1325, JMC1288, JMC1339, JMC1208 and JMC1264) had the lowest index for cumulative damage with the highest seed yield, although RDA analysis uncovered two accessions (JMC1339, JMC1288) with strong positive association of seed yield and the cumulative damage index with leaf production, specific leaf area (SLA) and total leaf area. Leaf traits, including SLA and total leaf area are important drivers for optimizing seed yield. This study identified 12 important morphological and physiological leaf traits for selecting landrace accessions of P. lunatus for high yields (regardless of damage level) to achieve sustainable, environmentally safe crop production.

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Evaluation of Common Bean (Phaseolus vulgaris L.) Varieties for Resistance to Bean Stem Maggot (Ophiomyia spp.) in Kenya

Cited by 12 publications

References 9 publications

Genome-wide association analysis of bean fly resistance and agro-morphological traits in common bean

Genome-wide association analysis of bean fly resistance and agro-morphological traits in common bean

INCIDENCE AND SEVERITY OF ANTHRACNOSE (Colletotrichum lindemuthianum) ON SELECTED COMMON BEAN (Phaseolus vulgaris L.) GENOTYPES

Determining relevant traits for selecting landrace accessions of Phaseolus lunatus L. for insect resistance

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