종돈의 성장형질이 번식형질에 미치는 영향

김효선,조광현,김병우,최태정,박병호,이승수,김시동,서강석,이정규,최재관 경상대학교 농업생명과학연구원 2011 농업생명과학연구 Vol.45 No.1

본 연구에 이용한 재료는 2001년부터 2008년까지 한국 종돈장에서 농장검정된 Yorkshire종, Landrace종 의 암컷 48,101두의 자료를 이용하였다. 일반성분 분석은 품종별, 산차별, 년도별, 계절별 및 농장별로 분석하 였고, 각 성장형질별 1산차 산자수 분석은 48,101두의 자료를 이용하여 성장형질 그룹별로 분석하였다. 일반 성분 분석에서 품종의 정육율 (p<0.05)을 제외한 부분에서 고도의 유의성(p<0.01)을 나타내었다. 일당증체량 에서는 Landrace종 (640.48±0.749 g)이 Yorkshire종 (624.22±0.608 g)보다 우수하였으며, 등지방 두께 에서는 Yorkshire종 (13.44±0.030 ㎜)이 Landrace종 (12.50±0.037 ㎜)보다 두껍게 나타났다. 각 품종에 대한 성장형질별 1산차 산자수 와 사산두수에서 Yorkshire종은 종료일령 161~165일령그룹을 기 점으로 산자수가 감소하는 경향을 보였으며, 일당증체량 620~640 g그룹과 등지방두께 13~14 ㎜그룹에서 산 자수가 가장 많이 나타났다. Landrace종의 경우 일당증체량그룹에서 일당증체량이 증가할수록 산자수와 사 산두수가 증가하는 경향을 보였다. 등지방두께그룹에서 11 ㎜미만 구간에서 산자수가 가장 많았고, 등지방두 께가 증가할수록 산자수는 감소하는 경향을 보였다. A Total of 48,101 performance records of sows for Yorkshire and Landrace breeds were collected from swine breeding farms in Korea from 2001 to 2008. A general ingredient analysis included the fixed effects of breed, parity, year, season, and farm. For the number of heads per 1st parity analysis by each growth traits, the data of 48,101 heads was used to analyze growth traits group. In the general ingredient analysis, the results showed high significance except for lean percentage by season (p<0.05). Average daily gain of Landrace breed (640.48 ± 0.749 g) was better than that of Yorkshire breed (624.22 ± 0.608 g), and the backfat thickness of Yorkshire breed (13.44 ± 0.030 ㎜) was thicker than that of Landrace breed (12.50 ± 0.037 ㎜). For the number of born alive and number of stillborn by growth traits for each breed, number of born decreased after test end day of 161 to 165 day, and average daily gain of 620 g to 640 g and the highest number of born appeared at the backfat thickness of 13 ㎜ to 14 ㎜ for yorkshire breed. In case of Landrace breed, number of born was the highest, and the number of stillborn increased together with average daily gain. The number of born was high when backfat thickness was less than 11 ㎜. The number of born trended to decrease when backfat thickness increased.

종돈의 성장형질이 번식형질에 미치는 영향

김효선,조광현,김병우,최태정,박병호,이승수,김시동,서강석,이정규,최재관 경상대학교 농업생명과학연구원 2011 농업생명과학연구 Vol.45 No.1

A Total of 48,101 performance records of sows for Yorkshire and Landrace breeds were collected from swine breeding farms in Korea from 2001 to 2008. A general ingredient analysis included the fixed effects of breed, parity, year, season, and farm. For the number of heads per 1st parity analysis by each growth traits, the data of 48,101 heads was used to analyze growth traits group. In the general ingredient analysis, the results showed high significance except for lean percentage by season (p<0.05). Average daily gain of Landrace breed (640.48 ± 0.749 g) was better than that of Yorkshire breed (624.22 ± 0.608 g), and the backfat thickness of Yorkshire breed (13.44 ± 0.030 ㎜) was thicker than that of Landrace breed (12.50 ± 0.037 ㎜). For the number of born alive and number of stillborn by growth traits for each breed, number of born decreased after test end day of 161 to 165 day, and average daily gain of 620 g to 640 g and the highest number of born appeared at the backfat thickness of 13 ㎜ to 14 ㎜ for yorkshire breed. In case of Landrace breed, number of born was the highest, and the number of stillborn increased together with average daily gain. The number of born was high when backfat thickness was less than 11 ㎜. The number of born trended to decrease when backfat thickness increased. 본 연구에 이용한 재료는 2001년부터 2008년까지 한국 종돈장에서 농장검정된 Yorkshire종, Landrace종의 암컷 48,101두의 자료를 이용하였다. 일반성분 분석은 품종별, 산차별, 년도별, 계절별 및 농장별로 분석하였고, 각 성장형질별 1산차 산자수 분석은 48,101두의 자료를 이용하여 성장형질 그룹별로 분석하였다. 일반성분 분석에서 품종의 정육율(p<0.05)을 제외한 부분에서 고도의 유의성(p<0.01)을 나타내었다. 일당증체량에서는 Landrace종(640.48±0.749 g)이 Yorkshire종(624.22±0.608 g)보다 우수하였으며, 등지방 두께에서는 Yorkshire종(13.44±0.030 ㎜)이 Landrace종( 12.50±0.037 ㎜)보다 두껍게 나타났다. 각 품종에 대한 성장형질별 1산차 산자수 와 사산두수에서 Yorkshire종은 종료일령 161~165일령그룹을 기점으로 산자수가 감소하는 경향을 보였으며, 일당증체량 620~1640 g그룹과 등지방두께 13~14㎜그룹에서 산자수가 가장 많이 나타났다. Landrace종의 경우 일당증체량그룹에서 일당증체량이 증가할수록 산자수와 사산두수가 증가하는 경향을 보였다. 등지방두께그룹에서 11 ㎜미만 구간에서 산자수가 가장 많았고, 등지방두께가 증가할수록 산자수는 감소하는 경향을 보였다.

제주재래흑돼지와 Landrace, 교배집단 F<SUB>2</SUB>에서 척추의 수적 변이와 도체형질의 상관관계

조인철(In-Cheol Cho),김상금(Sang-Keum Kim),김유경(Yoo-Kyung Kim),강용준(Yong-Jun Kang),양성년(Sung-Nyun Yang),박용상(Yong-Sang Park),조원모(Won-Mo Cho),조상래(Sang-Rae Cho),김남영(Nam-Young Kim),채현석(Hyun-Seok Chae),성필남(Pil-Nam 한국생명과학회 2013 생명과학회지 Vol.23 No.7

포유류 중 돼지의 척추 중 요추, 흉추의 수는 고정되지 않은 형질로 개체간의 차이를 나타내는 것으로 알려져 있다. 본 연구는 제주재래흑돼지와 Landrace, 두 품종 간 F₂ 교배집단에서 경추 수, 흉추 수, 요추 수, 척추 수 등 체형관련 형질과 도체형질의 상관관계를 살펴보기 위해 수행되었다. 세 축군 모두 경추 수의 변이는 나타나지 않았으나, 흉추 수, 요추 수, 척추 수는 상이한 양상을 보였다. 도체형질의 성적과 요추 수만이 세 축군들 사이에서 통계적인 유의성을 나타내지 않았고(p>0.05), 도체중, 육색, 근내지방도, 등심단면적, 등지방두께, 도체장, 흉추 수, 척추 수 등은 통계적인 유의성을 나타내었다(p<0.05). 제주재래흑돼지는 흉추 수 14-16 개, 요추 수 5-6 개, 척추 수 27-29 개의 범위, Landrace는 흉추 수 15-16 개, 요추 수 5-7 개, 전체 척추 수 28-29 개, F₂ 교배집단은 흉추 수 14-17, 요추 수 5-7 개, 전체 척추 수 27-30 개로 확인되었다. F₂ 교배집단에서 흉추 수와 척추 수의 증가는 도체중, 도체장, 등지방두께의 평균이 유의적으로 다른 양상을 보인다(p<0.05). 또한 척추 수의 증가는 요추 수의 증가보다 흉추 수의 증가에 더 많은 영향을 받는 것으로 나타났다. 흉추 수 및 척추 수의 증가가 등지방두께를 점점 두껍게 만들기는 하지만, 도체중과 도체장 등 경제성을 결정하는 핵심적인 도체형질을 향상시킨다는 점은 추후 제주재래흑돼지나 Landrace 품종을 활용한 양돈산업에서 체형개선을 통한 생산성 증가를 유발할 수 있는 좋은 전략이 될 것으로 판단된다. The number of thoracic and lumbar vertebrae is known to be an unfixed trait among mammals. This study focused on the relationship between numerical variations of cervical (CER), thoracic (THO), and lumbar (LUM) vertebrae and the total number of vertebrae (TNV) and carcass traits in Jejunative black pigs (JBPs), Landrace pigs, and their intercrossed F₂ population. There were no numerical variations in CER vertebrae. On the other hand, the numbers of THO and LUM vertebrae and the TNV varied in all three populations. Of the traits investigated in the three populations, only the means±SE of the LUM vertebrae did not show statistical significance (p>0.05). The carcass weights (CW), meat color (MC), marbling score (MS), backfat thickness (BFT), carcass length (CLE), THO vertebrae, and TNV all showed statistical significance (p<0.05). The JBP had 14-16 THO vertebrae, 5-6 LUM vertebrae, and 27-29 TNV. The Landrace pigs had 15-16 THO vertebrae, 5-7 LUM vertebrae, and 28-29 TNV. The F₂ population had 14-17 THO vertebrae, 5-7 LUM vertebrae, and 27-30 TNV. In the F₂ population, increased numbers of THO vertebrae and TNV were associated with a significant increase in the CW, CLE, and BFT (p<0.05). In particular, the increase in the TNV was caused by an increase in the number of THO rather than LUM vertebrae. Although the animals with a greater number of THO and TNV had thicker backfat, they had a longer CLE and a heavier CW. Both these traits are economically more important than the level of backfat when determining the productivity level. These results suggest that genetic selection to increase the number of vertebrae, especially in Landrace pigs, JBPs, and their related populations, may be an excellent strategy for improving productivity.

Protein Expression in Pig Species Longissimus dorsi Muscles among Different Breeds and Growth Stages

Byung Uk Kim(김병욱),Sam Woong Kim(김삼웅),Yeon Hee Hong(홍연희),Mi Ae Jeong(정미애),Yeon Sun Ryu(류연선),Hwa Chun Park(박화춘),Jong Hyun Jung(정종현),Young Min Kwon(권영민),In Soon Choi(최인순),Sang Suk Lee(이상석),Chul Wook Kim( 한국생명과학회 2012 생명과학회지 Vol.22 No.6

Landrace와 Berkshire의 longissimus dorsi muscle으로부터 단백질 발현양상의 차이를 보기 위하여 2-DE실험을 통하여 분석한 결과 Landrace 에서 특이적으로 발현 양이 증가한 단백질들은 serum albumin precursor, troponin T (TnT; slow skeletal muscle), myoglobin였다. Berkshire에서 특이적으로 발현 양이 증가한 단백질들은 heat shock 27 kDa protein 1, troponin T (fast skeletal muscle), muscle creatine kinase, phosphoglucomutase 1, triosephosphate isomerase (Tpi 1), adenylate kinase isoenzyme 1 (AK1)였다. Landrace의 longissimus dorsi muscle에서는 slow skeletal muscle과 연관된 단백질들이 발현된 반면에 Berkshire에서는 fast skeletal muscle, 물질대사경로, 에너지 생산과 관련된 단백질들이 발현되었다. Berkshire를 이용하여 성장단계별로 단백질 발현을 분석해 본 결과 growing Berkshire에서 발현이 증가한 단백질은 aldehyde dehydrogenase 1 family, member L1 (ALDHL1)와 muscle creatine kinase이고 finishing Berkshire에서 발현이 증가한 단백질은 heat shock 27 kDa protein 1, TnT (slow skeletal muscle), TnT (fast skeletal muscle), serum albumin precursor, PGM 1, AK 1, Tpi 1였다. 이 결과는 Finishing Berkshire의 등심에서는 growing Berkshire에 비교하여 골격근육, 에너지물질대사, 세포골격 등이 보다 활성화된 것으로 사료된다. When proteins extracted from longissimus dorsi muscles of Landrace and Berkshire at the finishing stage were compared by 2-DE, the Landrace demonstrated a quantitative increase in proteins related to slow skeletal muscle function, such as serum albumin precursor, troponin T (slow skeletal muscle; sTnT) and myoglobin. In contrast, the Berkshire exhibited comparatively elevated enzymes involved in metabolic pathways, fast skeletal muscle function, and energy production, such as heat shock 27-kDa protein (HSP27)-1, TnT (fast skeletal muscle; fTnT), muscle creatine kinase, phosphoglucomutase 1 (PGM1), triosephosphate isomerase (Tpi1) and adenylate kinase isoenzyme 1 (AK1). When compared to growing Berkshire, finishing Berkshire showed increased levels of aldehyde dehydrogenase 1 family, member L1 (ALDHL1), and muscle creatine kinase. In contrast, the growing Berkshire muscle had elevated levels of HSP27-1, sTnT, fTnT, serum albumin precursor, PGM1, AK1, and Tpi 1 as compared to the finishing Berkshire. The Landrace longissimus dorsi muscle may be composed of slower skeletal muscle, whereas Berkshire is composed of a faster skeletal muscle. The uniquely elevated quantities of proteins involved in skeletal muscle function, energy metabolism, and cytoskeleton function in the growing Berkshire indicate that these factors support growth and maintenance during the growing stage when compared with the finishing Berkshire.

Effect of single nucleotide polymorphism on the total number of piglets born per parity of three different pig breeds

Do, Kyoung-Tag,Jung, Soon-Woo,Park, Kyung-Do,Na, Chong-Sam Asian Australasian Association of Animal Productio 2018 Animal Bioscience Vol.31 No.5

Objective: To determine the effects of genomic breeding values (GBV) and single nucleotide polymorphisms (SNP) on the total number of piglets born (TNB) in 3 pig breeds (Berkshire, Landrace, and Yorkshire). Methods: After collecting genomic information (Porcine SNP BeadChip) and phenotypic TNB records for each breed, the effects of GBV and SNP were estimated by using single step best linear unbiased prediction (ssBLUP) method. Results: The heritability estimates for TNB in Berkshire, Landrace, and Yorkshire breeds were 0.078, 0.107, and 0.121, respectively. The breeding value estimates for TNB in Berkshire, Landrace, and Yorkshire breeds were in the range of -1.34 to 1.47 heads, -1.79 to 1.87 heads, and -2.60 to 2.94 heads, respectively. Of sows having records for TNB, the reliability of breeding value for individuals with SNP information was higher than that for individuals without SNP information. Distributions of the SNP effects on TNB did not follow gamma distribution. Most SNP effects were near zero. Only a few SNPs had large effects. The numbers of SNPs with absolute value of more than 4 standard deviations in Berkshire, Landrace, and Yorkshire breeds were 11, 8, and 19, respectively. There was no SNP with absolute value of more than 5 standard deviations in Berkshire or Landrace. However, in Yorkshire, four SNPs (ASGA 0089457, ASGA0103374, ALGA0111816, and ALGA0098882) had absolute values of more than 5 standard deviations. Conclusion: There was no common SNP with large effect among breeds. This might be due to the large genetic composition differences and the small size of reference population. For the precise evaluation of genetic performance of individuals using a genomic selection method, it may be necessary to establish the appropriate size of reference population.

Comparing traditional and commercial nixtamalization of three maize landraces: impact on pozole quality and consumer acceptance

Vázquez-Carrillo María Gricelda,Hernández-Montes Arturo,Palacios-Rojas Natalia,García-Cruz Leticia,Rosales-Nolasco Aldo,Molina Aide,Palacios-Pola Gabriela 한국식품연구원 2024 Journal of Ethnic Foods Vol.11 No.11

One of the most typical dishes of traditional Mexican cuisine is pozole, made with nixtamalized maize. This dish has a special place as part of the identity of Mexican culture. However, it is time‑consuming to prepare. With an increasing demand for precooked maize for pozole and the limited information on its preparation process, this study aims to assess the impact of both traditional (TN) and commercial nixtamalization (CN) on the quality of processed maize and its reception by consumers, focusing on the three most popular maize landraces used in pozole recipes. This study was carried out with the Cacahuacintle (‘CAC’), Elotes Occidentales (‘EO’) and Ancho (‘AN’) landraces, which were nixtamalized using the traditional method (only lime) and the commercial method (lime + additives) and the grain was flowered. The quality of the flowered grain was determined, and a sensory analysis consisting of magnitude of difference tests, a descriptive analysis, affective test and evaluation of consumer preferences was carried out. The ‘CAC’ landrace, when processed traditionally, yielded the highest sensory and commercial quality. The ‘EO’ landrace demanded a longer flowering time, resulting in less volume but retaining the aleurone layer. This characteristic helped preserved a portion of the anthocyanins. Consistently, maize landraces subjected to traditional nixtamalization displayed higher ratings for attributes related to masa and nejayote aroma. The ‘CAC’ landrace subjected to CN faced challenges in acceptability due to odors of acetic acid and sulfuric acid. These findings underscore the importance and advantages the TN techniques. They also emphasize the need to preserve grain quality and meeting consumer preferences when exploring alternative maize processing methods for emerging markets.

Effects of Corn Cob-based Diets on the Levels of Nutritionally Related Blood Metabolites and Onset of Puberty in Mukota and Landrace×Mukota Gilts

Mashatise, E.,Hamudikuwanda, H.,Dzama, K.,Chimonyo, M.,Kanengoni, A. Asian Australasian Association of Animal Productio 2005 Animal Bioscience Vol.18 No.10

The objective of this study was to determine the levels of nutritionally related blood metabolites, age and body weight at puberty in gilts fed on corn cob-based diet in Mukota and Landrace${\times}$Mukota crossbred gilts. Ten gilts of each of Mukota and crossbred genotypes were fed two diets for 14 weeks in a 2${\times}$2 (breed${\times}$diet) factorial treatment arrangement. A corn-cob based diet, designed to contain 2,304 kcal ME/kg, and a standard pig grower diet, were used. The corn cob constituted 20 percent of the total ration. Fortnightly, bodyweights and feed conversion ratios (FCR) were recorded. Blood samples were collected to determine blood glucose, urea and creatinine levels. The average daily bodyweight gain (ADG) in the Mukota was lower (p<0.05) than in the crossbred gilts. Crossbred gilts fed on the corn cob-based diet had lower (p<0.05) urea values from eight weeks from the start of the experiment (p<0.05) compared to Mukota gilts fed the same diet. There were no differences in blood glucose and creatinine concentrations between diets and genotypes. The lack of differences in the nutritionally-related blood metabolites suggest that corn cobs could be incorporated at 20 percent inclusion without compromising blood metabolite concentrations and age at puberty of the Mukota and Landrace${\times}$Mukota gilts.

연구보문 : 한국 재래종 콩 유전자원의 재동정 및 활용

김창영 ( Chang Yung Kim ),이정란 ( Jeong Ran Lee ),조규택 ( Gyu Taek Cho ),윤문섭 ( Moon Sup Yoon ),백형진 ( Hyung Jin Baek ) 한국국제농업개발학회 2010 韓國國際農業開發學會誌 Vol.22 No.4

본 연구에서는 한국고유 재래종 콩으로 명칭이 있으면서 장려 또는 우량종으로 사용되었던 재래종 자원의 특성 재동정을 통하여 대표자원을 선정하고 고유특성을 확보하여 재래종자원을 지속적으로 보존 이용이 가능하도록 하는데 연구목적을 두고, 2005-2006년 2개년간 수원 화서동의 유전자원 시험포장에서 생육특성 및 종실특성 조사에 의해서 기존 문헌과의 특성 재동정을 실시하였다. 1. 1년차(2005년)에는 종자은행에 보존되어 있는 재래종 콩 유전자원 중에서 고유명칭을 가진 국내 재래종을 주 대상으로 하여 도입 및 교잡육성종이 아닌 자원으로 42 재래품종, 2 대비품종(장엽콩, 황금콩) 포함 106점을 재료로 시험을 수행하여 생육 및 종실특성 조사, 전문가 검토 등을 통하여 36품종에서 각 1-2자원씩 총 43자원을 1차 대표자원으로 선정하였고, 혼종 또는 형질특성이 전혀 상이한 자원 11품종 22자원을 추후 분양 및 활용에서 차단하였다. 2. 2년차(2006년)에는 혼종 또는 형질이 전혀 상이한 자원을 제외한 2005년 시험의 1차 선정자원 43점과 1차 선정에서 보류되었던 고유재래종 및 순계분리계통 39점, 대비품종 2점(장엽콩, 황금콩) 포함 총 84점을 주 대상으로 하여 시험포장에서의 특성, 1년차 선발결과 및 기존 문헌자료를 비교 검토하여 41품종에서 각 품종별로 1-2자원씩 총 44자원을 대표자원으로 선정하였으며 선정된 대표자원 중심으로 분양 이용 등에 활용토록 조치하였다. 3. 또한 재래종 콩 등 시험에 사용한 41품종 44자원에 대하여 주요 생육단계별 형질 특성조사 및 화상 정보를 확보하여 유사자원의 특성비교 등에 활용할 수 있도록 하였으며, DNA 및 분자생물학적 특성조사를 실시함으로서 한국고유 재래종 콩 자원에 대한 고유특성을 확보하여 지속적으로 보존 이용하는데 기여할 수 있게 되었다. Korean landrace soybeans which have had their own names and utilized as the elite or recommended lines were re-identified for sustainable use of representative Korean landrace soybeans. Growth and seed characteristic of plant materials investigated at the Hwaseo experiment field, Suwon in 2005-2006 planting season were compared to those data provided from literatures. One hundred six accessions including 42 landraces, which were not introduced or bred, were entered into the field trial in 2005. Growth and seed characteristic data obtained from field trial and confirmation by expert`s comparison resulted in selection of 43 accessions from 36 landraces. Twenty-two accessions including 11 landraces were not homogeneous and/or completely different from original named accession. Eighty-four accessions, the rest of the 22 removal accessions from 2005, were evaluated once again in 2006 to reduce the environmental variation of the data. Finally, 44 accessions of 41 representative landraces were selected for distribution and sustainable use based on their growth characteristic and image data at each growth stage and DNA profiling data.

Comparison of Eating Quality and Seed Storage Protein among Korean Rice Landraces

이경준,이기안,이정로,Sebastin Raveendar,조양희,이석영,정종욱,마경호 한국작물학회 2016 Journal of crop science and biotechnology Vol.19 No.3

Improving eating quality and nutrition is one of the most important objectives in rice breeding program. Palatability factors and seed protein patterns of 69 Korean rice landraces were compared in this study. Of seven palatability factors, setback viscosity (SBV) had the largest variance, ranging from -144 to 45. Water content (WC) had the lowest variance, ranging from 11.0 to 13.0. In correlation analysis, eating quality was positively correlated with all palatability factors except gelatinization temperature (GT). In principal component analyses (PCA), the first PC with Eigen value of 5.06 explained 42.2% of the total variance. Cool paste viscosity (CPV) was the variable that had the largest positive loading. The second PC with Eigen value of 2.09 explained an additional 17.4% of the total variance. SBV was a variable that had the highest negative loading. Peak viscosity (PKV) had positive variance between PC1 and PC2. The 69 Korean rice landraces were clustered into four groups based on physicochemical properties and palatability factors, with groups I and II showing higher EQ than other groups. SDS-PAGE analyses revealed five seed storage patterns in the 69 Korean rice landraces. Among them, 84% (58 landraces) had pattern I. These results indicate that it is possible to develop high palatability cultivars using Korean rice landraces. In addition, screening of landraces based on variation in seed storage protein profile using SDS-PAGE could be highly effective for the identification of valuable rice genetic resources.

Genetic variation of Vp1 in Sichuan wheat accessions and its association with pre-harvest sprouting response

Jirui Wang,Yaxi Liu,Yan Wang,Zhenhong Chen,Shuai Dai,Wenguang Cao,George Fedak,Xiujing Lan,Yuming Wei,Dengcai Liu,Youliang Zheng 한국유전학회 2011 Genes & Genomics Vol.33 No.2

Pre-harvest sprouting (PHS) in bread wheat is a major abiotic constraint reducing yield and influencing the production of high quality grain. In China both spring and winter wheat regions are affected by PHS. Sichuan lies in southwest China,where the most of rainfall occurs during April to September when wheat is harvested. The present investigation was conducted to identify the allelic variability of Vp1, a gene that plays a role in maintenance and induction of dormancy,among Sichuan landraces and recent cultivars with different dormancy levels and to find potential sources of PHS resistance for breeding. Sichuan landrace and cultivar wheat accessions had a wide range of dormancy levels. The average germination index (GI) of Sichuan landrace accessions was 0.232, whereas at 0.674 it was much higher for cultivars. The different dormancy levels between landraces and cultivars indicated that pre-harvest sprouting resistance might have been neglected in recent Sichuan wheat breeding programs. The average GI of white grained accessions was higher than for red grained accessions. Particular Vp-1B gene fragments were specific in landraces or cultivars and in white or red grained accessions. The results indicated that Vp-1B markers could be used to distinguish cultivars and landraces. Significant relationships between certain Vp-1B allelesand GI of Sichuan wheat accessions were shown by Spearman’s rank correlation analysis.