Details for: PI 698656, Vigna unguiculata (L.) Walp. subsp. unguiculata var. unguiculata, 'California Blackeye 77'


Summary Data
Taxonomy:
Vigna unguiculata (L.) Walp. subsp. unguiculata var. unguiculata
Cultivar:
'California Blackeye 77'
Origin:
Developed – California, United States
Received by NPGS:
11 Jun 2021
Improvement Status:
Cultivar
Reproductive Uniformity:

Pureline
Form Received:
Seed
Life Form:
Annual
Life Cycle:
Annual
Availability
This accession is not available. Contact site for status.
 
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Core Passport Data
Taxonomy:
Vigna unguiculata (L.) Walp. subsp. unguiculata var. unguiculata
Cultivar:
'California Blackeye 77'
Origin:
Developed – California, United States
Received by NPGS:
11 Jun 2021
Improvement Status:
Cultivar
Reproductive Uniformity:

Pureline
Form Received:
Seed
Life Form:
Annual
Life Cycle:
Annual
Source History
Developed

California, United States

Developer(s):
Accession Names and Identifiers
'California Blackeye 77'
Type: Cultivar name

CB77
Type: Other or unclassified name

Narrative
California Blackeye 77 (CB77) is distinguished from the industry standard varieties, ‘California Blackeye 46’ (CB46) and ‘California Blackeye 5’ (CB5), by its ability to resists infestation by cowpea aphid (Aphis craccivora Koch). Genotyping with 51,128 single nucleotide polymorphism (SNP) markers reveals that CB77 is near-isogenic to CB46 and carries two aphid-resistance haplotypes from IT97K-556-6. CB77 has botanical and morphological characteristics similar to its recurrent parent CB46 with respect to leaf shape (ovate) and foliage color (shiny, deep green). CB77 has a red dot at the pod tip, which develops further when pods are mature. There are also rings of red pigmentation at the stem and branch nodes and at the base of each peduncle. The flowers are white with a yellow corona at the base of the large petal, and a purple corona at the base of the small petal. CB77 has similar grain appearance to CB46 (kidney, spherical, and rough testa with a black “eye” or pigmentation portion) except its white-coat portion is slightly brighter than that of CB46. The eye on the seed coat does not leak dark pigments during boiling. California Blackeye 77 has a determinate and erect growth habit like CB46. However, under heat conditions, CB77 extends its shoots, making it appear more vigorous than CB46. In the Southern San Joaquin Valley, CB77 begins flowering around 45 days after sowing between late May and early June. Its first flush of pods are mature in about 80 days from sowing. These pods do not shatter when the second flush of pods is produced under continued irrigation. However, feedback inhibition seems to occur under cooler conditions in the Sacramento Valley, making CB77 senesce earlier than the local cultivar CB5. Under insect-unprotected conditions, CB77 outperformed CB46 in both growth and yield. Under protected conditions, CB77 showed grain yield, seed quality and other agronomic characteristics equivalent to CB46, and better yield than CB5.
Vigna unguiculata (L.) Walp. subspp. unguiculata var. unguiculata
Genus:
Vigna
Subgenus:
Vigna
Section:
Catiang
Family:
Fabaceae (alt. Leguminosae)
Subfamily:
Faboideae
Tribe:
Phaseoleae
Subtribe:
Phaseolinae
Nomen number:

486885
Verified:
12/17/2019 by ARS Systematic Botanists.
Other conspecific taxa
Vigna unguiculata (L.) Walp. (1191 active accession[s])
Vigna unguiculata (L.) Walp. subsp. aduensis Pasquet (0 active accession[s])
Vigna unguiculata (L.) Walp. subsp. alba (G. Don) Pasquet (0 active accession[s])
Vigna unguiculata (L.) Walp. subsp. baoulensis (A. Chev.) Pasquet (0 active accession[s])
Vigna unguiculata (L.) Walp. subsp. burundiensis Pasquet (0 active accession[s])
Vigna unguiculata (L.) Walp. subsp. dekindtiana (Harms) Verdc. (40 active accession[s])
Vigna unguiculata (L.) Walp. subsp. letouzeyi Pasquet (0 active accession[s])
Vigna unguiculata (L.) Walp. subsp. pawekiae Pasquet (0 active accession[s])
Vigna unguiculata (L.) Walp. subsp. protracta (E. Mey.) B. J. Pienaar (0 active accession[s])
Vigna unguiculata (L.) Walp. subsp. pubescens (R. Wilczek) Pasquet (9 active accession[s])
Vigna unguiculata (L.) Walp. subsp. stenophylla (Harv.) Maréchal et al. (5 active accession[s])
Vigna unguiculata (L.) Walp. subsp. tenuis (E. Mey.) Maréchal et al. (0 active accession[s])
Vigna unguiculata (L.) Walp. subsp. unguiculata (1 active accession[s])
Vigna unguiculata (L.) Walp. subsp. unguiculata Biflora Group (14 active accession[s])
Vigna unguiculata (L.) Walp. subsp. unguiculata Melanophthalmus Group (0 active accession[s])
Vigna unguiculata (L.) Walp. subsp. unguiculata Sesquipedalis Group (198 active accession[s])
Vigna unguiculata (L.) Walp. subsp. unguiculata Unguiculata Group (6872 active accession[s])
Vigna unguiculata (L.) Walp. subsp. unguiculata var. spontanea (Schweinf.) Pasquet (0 active accession[s])
Autonyms (not in current use), synonyms and invalid designations
Common names
Annotations
Other Links
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Pathogens
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Citations
  • Huynh, B., T. Duong, N. E. Clark, R. Long, S. Light, R. Dahlquist-Willard, J. D. Ehlers, T. J. Close, & P. A. Roberts. 2022. Registration of aphid-resistant ‘California Blackeye 77’ cowpea. J. Pl. Registr. 16(1):013. DOI: 10.1002/plr2.20176. Number of accessions cited: 1
Pedigree
Description:
CB46/////CB46////CB46///CB46//CB46 (recurrent parent) / CB27/556-039 (donor parent) CB46 is an aphid-susceptible California blackeye cultivar. CB27/556-039 is an aphid-resistant recombinant inbred line of the CB27 x IT97K-556-6 cross.
Intellectual Property Rights
Journal of Plant Registration. CV-344, OTHER LEGUMES. Issued: 01 Jan 2022.
  • Huynh, B., T. Duong, N. E. Clark, R. Long, S. Light, R. Dahlquist-Willard, J. D. Ehlers, T. J. Close, & P. A. Roberts. 2022. Registration of aphid-resistant ‘California Blackeye 77’ cowpea. J. Pl. Registr. 16(1):013. DOI: 10.1002/plr2.20176.
Restriction.