Narrow sense heritability estimates of bacterial leaf spot resistance in pseudo F2 (F1) population of mulberry (Morus spp.)

Banerjee, Rita; Das, N. K.; Doss, S. G.; Saha, A. K.; Bajpai, A. K.; Bindroo, B. B.

doi:10.1007/s10658-011-9894-z

Cited by 9 publications

(7 citation statements)

References 23 publications

(16 reference statements)

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“…As stated by Banerjee et al (2012) and Parikh et al (2016), F 1 plants resulting from crossings between parents highly heterozygote at many loci is considered as pseudo-F 2 and not as F 1 plants. The strategy of pseudo-F 2 plants was applied by Banerjee et al (2012), in Cornus florida; by Parikh et al (2016), in Morus spp. ; and by Arriel et al (2016)…”

Section: Introductionmentioning

confidence: 99%

Inheritance of resistance to dieback disease in mango (Mangifera indica)

Coelho¹,

Santos²,

Batista³

2018

Aust J Crop Sci

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The fungi Lasiodiplodia theobromae and Neofusicoccum parvum are pathogens responsible for causing dieback disease in mangoes. Studies on the inheritance of resistance to these fungal diseases in mango are quite limited. The objective of the present study was to evaluate the inheritance of resistance to dieback disease in three pseudo-F 2 progenies to assist in mango breeding programs. Young branches containing young leaves were selected, and suspension of 10 3 conidia/mL of L. theobromae or N. parvum was sprayed separately. After inoculation, leaves were protected in a plastic wet chamber for 48 hours. The infection was estimated by taking the branches without symptoms/total number of inoculated branches. Plants without disease symptoms in more than 90% of the branches, in three different inoculation periods, were considered as resistant. Keitt, Haden, and Espada cultivars were resistant to both fungi, while 'Tommy Atkins' was susceptible to both pathogens. Monogenic resistance, conferred by recessive alleles, was observed for L. theobromae for the three crossings evaluated, despite the 13:3 segregation detected for 'Keitt' x 'Tommy Atkins'. For N. parvum, recessive resistance with 3:1 monogenic segregation was observed in the crossing 'Keitt' x 'Tommy Atkins', and 9:7 epistatic segregation was reported in the crossing 'Haden' x 'Tommy Atkins' and 'Espada x 'Tommy Atkins'. The mono or digenic inheritance observed in the present study indicates the possibility of selection in the F 2 generation and identification of plants with double resistance to L. theobromae and N. parvum in mango trees.

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Section: Introductionmentioning

confidence: 99%

Inheritance of resistance to dieback disease in mango (Mangifera indica)

Coelho¹,

Santos²,

Batista³

2018

Aust J Crop Sci

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“…Nevertheless, the sources of BLS resistance have been identified under field condition (Banerjee et al 2009), but mulberry resistance to BLS is polygenic and quantitatively inherited (Banerjee et al 2012). This coupled with high heterozygous plant behaviour and sex-incompatibility are the major impediments for targeted BLS improvement in mulberry.…”

Section: Introductionmentioning

confidence: 99%

Association of morphological and biochemical features of mulberry lines with resistance to bacterial leaf spot

Banerjee

Chattopadhyay

Saha

et al. 2014

Archives Of Phytopathology And Plant Protection

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Xanthomonas campestris pv. mori causes bacterial leaf spot (BLS) of mulberry (Morus spp.) worldwide. Twenty mulberry lines with contrasting response to BLS showed significant (p < 0.01) variation between resistant and susceptible groups for stomata frequency (SF), trichome density (TD), total soluble sugar (TSS) and polyphenol (PP) content, while non-significant for chlorophyll content. Heritability (broad-sense) estimates obtained from the variance component analysis were high (≥0.72) for these traits. The disease severity index values of the lines were significantly negatively correlated with TD (r = −0.66; p < 0.01), TSS (r = −0.73; p < 0.01) and PP (r = −0.61; p < 0.01), while positively correlated with SF (r = 0.65; p < 0.01). The cluster analysis was based on highly significant four variables and DSI values, and classified the lines into two major clusters. The resistant lines that come under cluster-I had high TD, TSS and PP, while those in susceptible category had high SF in cluster-II. These findings suggest that direct selection for SF, TD, TSS and PP will be effective for development of host resistance against BLS in mulberry.

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“…In terms of pea biofortification, these results suggest that breeding for increased mineral concentration cannot be accomplished by phenotyping the seed concentration alone, especially as narrow-sense heritability has been reported to be lower than broad-sense heritability estimates ( Banerjee et al 2012 ; Messiaen et al 2012 ). Furthermore, this study was conducted under greenhouse conditions, which is a controlled environment, which also indicates heritability estimates may be even lower for these minerals under field conditions, where the environment is variable.…”

Section: Discussionmentioning

confidence: 94%

Genome-wide association studies of mineral and phytic acid concentrations in pea (Pisum sativum L.) to evaluate biofortification potential

Powers

Boatwright

Thavarajah

2021

G3 Genes|Genomes|Genetics

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Pea (Pisum sativum L.) is an important cool season food legume for sustainable food production and human nutrition due to its nitrogen fixation capabilities and nutrient-dense seed. However, minimal breeding research has been conducted to improve the nutritional quality of the seed for biofortification, and most genomic-assisted breeding studies utilize small populations with few single nucleotide polymorphisms (SNPs). Genomic resources for pea have lagged behind those of other grain crops, but the recent release of the Pea Single Plant Plus Collection (PSPPC) and the pea reference genome provide new tools to study nutritional traits for biofortification. Calcium, phosphorus, potassium, iron, zinc, and phytic acid concentrations were measured in a study population of 299 different accessions grown under greenhouse conditions. Broad phenotypic variation was detected for all parameters except phytic acid. Calcium exhibited moderate broad-sense heritability (H2) estimates, at 50%, while all other minerals exhibited low heritability. Of the accessions used, 267 were previously genotyped in the PSPPC release by the USDA, and we mapped the genotyping data to the pea reference genome for the first time. This study generated 54,344 high-quality SNPs used to investigate the population structure of the Pea Single Plant Plus Collection and perform a genome-wide association study to identify genomic loci associated with mineral concentrations in mature pea seed. Overall, we were able to identify multiple significant SNPs and candidate genes for iron, phosphorus, and zinc. These results can be used for genetic improvement in pea for nutritional traits and biofortification, and the candidate genes provide insight into mineral metabolism.

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Narrow sense heritability estimates of bacterial leaf spot resistance in pseudo F2 (F1) population of mulberry (Morus spp.)

Cited by 9 publications

References 23 publications

Inheritance of resistance to dieback disease in mango (Mangifera indica)

Inheritance of resistance to dieback disease in mango (Mangifera indica)

Association of morphological and biochemical features of mulberry lines with resistance to bacterial leaf spot

Genome-wide association studies of mineral and phytic acid concentrations in pea (Pisum sativum L.) to evaluate biofortification potential

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